给排水外文翻译

1】Professional English on Water Supply and Sewerage Engineering 给水排水工程专业英语drains for water-carried wastes 污水处理(排污水的排水管道)a settling reservoir 预沉池aqueduct 渠道，导水管filtration 过滤distillation 蒸馏clarification 澄清coagulation血凝stone-grated 格栅、格网turbidity 浊度cistern 蓄水池、槽gpcd 每日每人加仑数coagulant 混凝剂combined sewers 合流制排水管道prehistoric word 石器时代rapid-sand filter 快砂滤池water supply and wastewater disposal facilities给排水处理设施per capita 按人口平均计算ferment 发酵toxic 有毒的These cisterns provided a daily average supply of about 4.2 gallons per capita per day(gpcd).这些贮水池仅能提供每人每天4.2加仑的水量The connection was established between a contaminated water supply and spread of the disease, and it was determined that the absence of effective sewerage was a major hindrance in combating the problem. 人们发现疾病的传播和饮用水受到污染有关，并由此确定缺少有效的排水系统是解决这一问题的主要障碍。

2】The exterior network 室外管网distribution systems 配水系统communication pipe引入管 a meter box 水表节点/盒pressure booster增压装置storage tank 储水箱 a piping line管道water-dispensing fixtures配水器具water meter 水表flange 法兰；阀门gate valve 闸阀deaerator除氧器incorporate 合并fixture trap 存水弯plumbing fixture 卫生器具manhole 检查井fire-protection 消防The function of a drainage system in a building is to remove safely and quickly sanitary sewage, industrial wastes, and rainwater.室内排水系统的作用是为了安全快速地排出生活污水、工业废水和雨水。

《给水排水专业英语》Lesson 1specific yield [spə'sifik] [ji:ld] 单位产水量mass curve 累积曲线capital investment 投资recurring natural event ['nætʃərəl] 重现历史事件subterranean [sʌbtə'reiniən] 地下的groundwater 地下水surface water 地表水tap [tæp]开关、龙头；在…上开空（导出液体）swampland ['swɔmplænd] n. 沼泽地；沼泽地带capillary [kə'piləri] n. 毛细管adj. 毛状的,毛细管的hygro- [词头] 湿（气），液体hygroscopic [,haigrəu'skɔpik] adj. 易湿的，吸湿的hygroscopic moisture 吸湿水stratum ['streitəm] n. [地质学]地层，[生物学]（组织的）层aquifer ['ækwəfə] ['ækwifə] n.含水层，地下蓄水层saturation [,sætʃə'reiʃən] n.饱和(状态)，浸润，浸透，饱和度hydrostatic [,haidrəu'stætik] adj. 静水力学的, 流体静力学的hydrostatic pressure 静水压力water table 1. 地下水位，地下水面，潜水面2. 【建筑学】泻水台；承雨线脚；飞檐；马路边沟[亦作water-table]Phreatic surface [fri(:)'ætik]地下水（静止）水位，浅层地下水面Superficial [sju:pə'fiʃəl] adj. 表面的,表观的，浅薄的Porosity [pɔ:'rɔsiti] n. 多孔性,有孔性,孔隙率Unconfined ['ʌnkən'faind] adj. 无约束的，无限制的Permeability [,pə:miə'biliti] n. 弥漫, 渗透, 渗透性Permeameter [pə:mi'æmitə] n.渗透仪,渗透性试验仪)Clay [klei] n. 粘土，泥土gravel ['ɡrævəl]n.[总称]砾，沙砾，小石；砾石cone of depression [kəun] 下降漏斗, [水文学]下降锥体drawdown ['drɔ:daun] n. 水位下降(降落,消耗,减少)integrate ['intigreit] 【数学】作积分运算；求积分observation well [,əbzə:'veiʃən] 观测井，观测孔extraction [ik'strækʃən] n. 抽出，取出，提取（法），萃取（法）derivation [deri'veiʃən] n. 1. 导出，引(伸)出，来历，出处，得出，得到；诱导，推论，推理；溯源【数学】1) (定理的)求导，推导2) 微商，微分，导数【语言】词源，衍生deplete [di'pli:t] v. 耗尽, 使...衰竭refuse [ri'fju:z] n. 废物,垃圾vt. 拒绝，谢绝dump [dʌmp] n. 垃圾场，垃圾堆，堆存处vt. 倾卸，倾倒(垃圾)unconfined aquifer 潜水含水层，非承压含水层，无压含水层confined aquifer 自流含水层，承压含水层homogeneous [,hɔməu'dʒi:njəs] adj. 同类的,相似的，均匀的，均相的；同种类的，同性质的；相同特征的Aquaclude 不透水层，难渗透水的地层Offset ['ɔ:fset] n.偏移量抵销，弥补，分支，胶印，平版印刷，支管，乙字管Vt. 弥补,抵销,用平版印刷vi. 偏移，形成分支sophisticated [sə'fistikeitid] adj. 复杂的，需要专门技术的；诡辩的,久经世故的equilibrium [,i:kwi'libriəm] n. 平衡,均衡Water Supply（给水工程）A supply of water is critical to the survival of life, as we know it.（众所周知，水对生命的生存至关重要。

History of Water SupplyMan’s search for pure water began in prehistoric times. Much of his earliest activity is subject to speculation. Some individuals might have led water where they wanted it through trenches dug in the earth, a hollow log was perhaps used as the first water pipe. Thousands of years must have passed before our more recent ancestors learned to build cities and enjoy the convenience of water pipes to the home and drains for water-carried wastes. Our earliest archeological records of central water supply and wastewater disposal date back about 5000 years, to Nippur of Sumeria. In the ruins of Nippur there is an arched drain with the stones set in full "voussoir" position, each stone being a wedge tapering downward into place. Water was drawn from wells and cisterns.An extensive system of drainage conveyed the wastes from the palaces and residential districts of the city.The earliest recorded knowledge of water treatment is in the Sanskrit medical lore and Egyptian Wall inscri ptions. Sanskrit writings dating about 2000 B.C. tell how to purify foul water by boiling in copper vessels,exposing to sunlight, filtering through charcoal, and cooling in an earthen vessel.The earliest known apparatus for clarifying liquids was pictureed on Egyptian walls in the fifteenth and thirteenth centuries B.C. The first picture represents the siphoning of either water of settled wine. A second picture shows the use of wick siphons in an Egyptian kitchen.The first engineering report on water supply and treatment was made in A.D. 98 by Sextus Julius Frontinus, water-commissioner of Rome. He produced two books on the water supply of Rome. In these he described a settling reservoir at the head of one of the aqueducts. His writings were first translated into English by the noted hydraulic engineer Clemens Herschel in 1899.In the eight century A.D. an Arabian alchemist,Geber,wrote a rather specialized treatise on distillation that included various stills for water and other liquids.The English philosopher Sir Francis Bacon wrote of his experiments on the purification of water by filtration, boiling, distillation and clarification by coagulation. This was published in 1627, one year after his death. Bacon also noted that clarifying water trends to improve health and increase the "pleasure of the eye".The first known illutrated descri ption of sand filters was published in 1685 by Luc Antonio Porzio, an Italian physician. He wrote a book on conserving the health of soldier in camps, based on his experience in the Austro-Turkish War. This was probably the earliest published work on mass sanitation.He described and illustrated the use of sand filters and sedimentation. Porzio also stated that his filtration was the same as "by those who built the wells in the Palace of the Doges in Venice and in the palace of Cardinal Sachett,at Rome."The oldest known archeological examples of water filtration are in Venice and the colonies she occupied. The ornate heads on the cisterns bear dates,but it is not known when the filters were placed.Venice,Built on a Series of islands, depended on catching and storing rainwater for its principal freshwater supply for over 1300 years. Cisterns were built andmany were connected in stone-grated catch basins and then filtered through sand into cisterns.A comprehensive article on the water supply of Venice appeared in the Practical Mechanics Journal in 1863.The land area of Venice was 12.85 acres and the average yearly rainfall was 32 inches(in). Nearly all of this rainfall was collected in 177 public and 1900 private cisterns. These cisterns provided a daily average supply of about 4.2 gallons per capita per day(gpcd).This low consumption was due in part to the absence of sewers, the practice of washing clothes in the lagoon,and the universal drinking of wine. These cisterns continued to be the principal water supply of Venice until about the sixteenth century.Many experiments were conducted in the eighteenth and nineteenth centuries in England,France Germany,and Russia.Henry Darcy patented filters in france and England in 1865 and anticipated all aspects of the American rapid sand filter except coagulatin.He appears to be the first to apply the law of hydraulics to filter design.The first filter to supply water to a whole town was completed at Paisley,Scotland,in 1804,but this water was carted to consumers. In Glasgow, Scotland,in 1807 filtered water was piped to consumers.In the United States little attention was given to water treatment until after the Civil War. Turbidity was not as urgent a problem as in Europe. The first filters were of the slow sand type,similar to British design. About 1890 rapid sand filters were developed in the United States and coagulants were introduced to increase their efficency. These filters soon evolved to our present rapid sand filters with slight modification.历史上的水供应人类对纯净水的搜寻开始于史前时代。

给排水专业英语汇总废水处理 wastewater disposal 合流制 combined sewers UNIT 1给水工程 water supply engineering 受纳水体 receiving waters 分流制separate sewers排水工程 sewetage engineering 污染 pollution pollute 建筑排水系统building drainage system市政工程 civil engineering 污染物 pollntant 卫生洁具 plumbing fixtures市政工程师 civil engineer 玷污、污染 contamination 卫浴设备 bathroom fixtures环境工程 environmental engineering 致污物 contaminant 输水系统 water transmission system水文学 hydrology 未污染 uncontaminated 漏水率 leakage rate水力学 hydranlies 水污染 water pollution 配水系统 water distribution system水环境 natural aquatic environment 水污染控制 water pollutioncontrol 环状管网 grid system流域 watershed 水污染防治 water pollution prevention 支状管网branching system水体 waterbody 污水回用 wastewater reuse 下水管道 sanitary sewer 地表水 surface water 污水节流管 intercepting sewer UNIT 2新鲜水 freshwater 水短缺 water scarcity 污水节流系统 intercepting sewer system地下水 groundwater 地表水资源 surface water resource 污水节流井sewage intercepting cell含水层 aquifer 管网 Pipe Network 支管 collection sewer collector sewer天然含水层 natural aquifer 供水系统 water supply system 生活污水sanitary sewage地下含水层 underground aquifer 市政配水系统 municipal distribution system domestic sewage水文循环 natural hydrologic cycle 建筑给水系统house water supply system domestic wastewater渗滤 infiltration 分区供水系统 dual distribution system 工业污水industrial wastewater降水 precipitation 小区 micro district 工业污水/液/物 industrial wastes渗入 precolation 小社区 small community 农业用水 agricultural wastewater/wastes蒸发 evaporation 冷水供水系统 cold water supply system 雨水rainwater stormwater蒸腾 transpiration 热水供水系统 hot water supply system 水位waterlevel城市水文循环 urban hydrologic cycle 消防系统 fire protection system 海拔、标高 elevation水源 water source 坡度 grade 喷淋系统 fire protection sprinkler system水资源 water resource 自动水幕系统 automatic drencher system 倾斜度slope取水 water withdrawal 半自动水幕系统明渠 Open channel水处理 water treatment 开挖 excavation semi automatic drencher system配水 water distribution 消火栓 hydrant 深度 excavation depth用水 water use 排水系统 drainage system 水力分析 hydraulic analysis 污水 wastewater 生活排水系统 sanitary system 水头 pressure head废水 abwasser 工业排水系统 industrial system 总水头 total head废水收集 wastewater collection 雨水排水系统 stormwater system Unit 3 水头损失 Head loss 水源 Water sources 审美 Esthetic速度头动压头 Velocity head 味 Taste供水水源 Water supples静压 Static head 原水 Raw water 嗅 Odo摩擦水头 Friction head 未处理水 Untreated water 色 Colour水力坡度线 Hydranlic grade line 出水 Finished water 变色Discolouration 重力流 Gravity flow 原水水质 Raw-water quality 变色Discolor水塔 Water castle 水质标准 Water quality standards 水质物理参数Physical parameters of water quality 贮水箱 Cistern 水质要求 Water quality requirements 水的物理性质 Physical quality of water 泵站 Pump station 饮用水 Drink water\potable water 浊度值 Turbidity values 给水泵站 Water pump station 自来水 Tap water 浊度单位 Turdidity unit 污水泵站Sewage station 纯水 Pure water 浑浊单位 Turdid提升泵站 Lift pumping plant 嗅阈值 Threshold odor number 饮用水标准Drinking water standards增压泵 Booster pump 化学性质 Chemical quality 饮用水一级标Primary drinking water standards离心泵 Centrifugal pump 最大允许浓度 Maxmum permissible levels 水质化学参数Chemical parameters of water quality 潜水泵 Submer sible pump 溶解氧 Dissolved oxygen (DO) maxmum allowable levels潜水艇 Submerine 最大污染物浓度 Maxmum contaminant levels 溶解氧浓度Do level深井泵 Well pump 主要污染物 Primary contaminants 溶解氧平衡 Do balance虹吸虹吸管 Siphon 有机化合物 Organic chemicals 氧损 Oxygen depletion 人孔 Manhole 合成有机化合物 Synthetic organic chemicals 有机污染物 Organic pollutant 法兰 Flange 挥发性有机化合物 Volatile organic ohemicals 生化需氧量 Biochemical oxygen demand (BOD) 阀门 Valve 无机化合物 Inorganic chemical 总氮 Total nitrogen (TN) 闸阀 Gate valve 微生物Micro organisms\microbes 总凯式氮 Total Kjeldahl nitrogen (TKN) 微生物污染 Microbial contaminants 悬浮固体 Suspended solids (SS) 泵送系统 Pumping system流量 Flow rate 病原微生物 Pathogenic micro organisms 总悬浮固体Total suspended solids (TSS)病原体 Pathogenic 溶解 D流速 Fluid velocity issolved (DS)层流 Laminar flow 病毒 Pathogenic bacterin 总溶解 Total dissolved (TDS) 滞流粘性流 viscous flow 细菌 Bacteria Unit 4大肠杆菌 Coliform bacteria 过渡流 Transitional flow 溶解的铁和锰Dissolved iron and manganese 湍流 Turbulent flow 病毒 Viruses 硬度Hardness藻类 Algae 紊流 Turbulence flow 碱度 Alkalinity涡流 Eddying flow 浊度 Turbidity 盐度 Salinity雷诺数 Teynolds number 放射性 Radionuclide 有害物质 Toxic and hazardous materials感官性状 Esthetic qualities 水质 Water guality 氰化物 Cyanides急性毒性 Acute toxity 处理水 Treated wastes 砂 Grit慢性毒性 Chronic toxity 回用水 Redaimed water 沙 Sand基因毒性 Genetic toxicity 水处理过程 Water processing 除砂 Grit removal 基因 Gene 收集 Collect 沉砂池 Grit chamber 难降解有机化合物Refractory organic chemicals 处置 Dispose 沉淀 Settling永久性有机污染物 Persistent organic pollutants 处理方法 Treatment method 沉淀池 Settling tank 致癌化学性 Carcinogenic chemicals 处理费用Treatment costs 澄清池 Clarifier 三卤甲烷 Trihalo methanes 处理单元Treatment process 初澄清池 Primary clarifier 卤素 Halogen 运行模式Operational mode 初沉池 Primary settling tank 甲基 Methyl 间歇处理方式Batch treatment approach 一级出水 Primary effluent 氯仿 Trichloromethane 均匀均化 Equalization 二级处理 Secondary treatment 三氯甲烷 Chloroform 均匀 Equalize 二级处理工艺 Secondary treatment process 杀虫剂农药Pesticide 调蓄水池 Equalization storage 生物处理 Biological treatment 害虫 Pest 调节池 Equalization tank 二澄清池 Secondary clarifier 杀虫剂Insecticide 蓄水池二沉池 Secondary settling tank Storage tank除草剂 Herbicide 降解 Degrade 最终澄清池 Final clarifier 杀菌剂Germicide 分解 Decompose 最终沉淀池 Final settling tank 细菌 Germ 分离Separate 二级出水 Secondary effluent 防腐剂 Preservative 隔离 Separation 三级处理 Tertiary treatment 保证 Preserve 物理法 Physical process 深度处理 Advanced treatment 清洗剂 Cleaning agent 物理处理 Physical treatment 废水消毒 Waste disinfection 洗涤剂 Detergent 物理处理过程 Physical treatment process 出流出水 Effluent flow允许浓度 Allowable levels 发泡剂 Foaming agent 一级处理 Primary treatment泡沫 Foam 初步处理 Preliminary treatment 优异出水 High-quality polished effluent格栅筛滤 Screening 废水处理厂 Wastewater treatment plant 化肥Fertilizer肥沃的 Fertile 格栅 Screen 污水处理厂 Sewage treatment plant 富营养化 Eutrophication 格栅 Bar screen 二级处理厂 Secondary treatment plant 城市污水处理营养的 Trophic 栅条 Bars营养水平 Trophic level 钢栅条 Steel bars Municipal wastewater treatment市政工程 Municipal engineering 生态位 Niche 渣耙 Cleaning rakes圆形破碎机 Circular grinder 土木工程 Civil engineering Unit 5原污水 Raw sewage 破碎 Grind 城市污水处理厂原废水 Raw wastes 除砂 Degritting Municipal wastewater treatment plant污水处理能力 Sewage treatment capacity 混合池 mixer tank 刮泥机sludge scraper 电容 Capacitance 快速混合池 flash-mix tank 排泥 sludge drawoff 污水处理设施 Municipal treatment facilities 絮凝器 n.flocculator sludge withdrawal 多反应器设施 Multi-reactor facility 絮凝池flocculation tank 预沉淀 n. presedimentation 处理池 Treatment tank 预沉淀池 presedimentation basin负荷 Load 固体接触池 solids-contact tank负荷 Loadings 澄清 n. clarification 3(过滤 n. filtration 水力负荷Hydrautic loading 滤池 n. filter v. clarify污染负荷 Pollutant load 澄清池 n. clarifier 慢滤池 slow filter 有机负荷 Organic load 高负荷澄清池 high rate clarifier 快滤池 rapid filter 无机负荷 Inorganic load 澄清水 clarifying water 高速(负荷)滤池 high rate filter 不含化肥、农药无机的 Unorganic 砂滤池 sand filter 周期性负荷 Periodic(intermitlent) loading 2(沉淀 n. sedimentation 慢砂滤池 slow sand filter 第五部分: 物化处理沉降 n. sedimentation 快砂滤池 rapid sand filter 1(混凝 n. coagulation 自由沉降 plain settling 重力滤池 gravity filter混凝过程 coagulation process 拥挤沉降 hindered settling 压力滤池pressure filter化学混凝 chemical coagulation 重力沉降 gravity settling 过滤介质，滤料 filter medium凝聚 n. aggregation 沉淀池 settling tank silica sand 石英砂絮凝 n. flocculation 沉淀池，沉降池 sedimentation tank 无烟煤 n. anthracite矩形沉淀池 rectangular settling tank 硅藻土 diatomaceous earth v. flocculate异向絮凝 perikinetic flocculation 圆形沉淀池 circular settling tank 煤—砂滤床 coal-sand beds同向絮凝 orthokinetic flocculation 管式沉淀池 tube settler 多层滤料multilayered media混凝剂 n. coagulant 斜管沉淀池 steeply inclined tube settler 混合滤料 mixed media混凝剂投量 coagulant dosage 板式沉淀池 parallel-plate settler 双层滤料滤池 dual media filter烧杯实验 jar test 双层滤池 two-layer filter 板式沉淀池 plate separator最佳混凝剂投量 optimum coagulant dosage 气浮 n. floatation 粗滤料coarse media助凝剂 coagulant aid 泡沫分离 foam separation 细滤料 fine media 助凝剂 flocculation aid 溶气气浮 dissolved-air floatation 助滤剂filter aid聚电解质 n. polyelectrolytes 气浮池 floatation tank 滤后水，滤出水filtered water快速混合 flash-mix , 表面撇渣装置 surface-skimming device 滤后水，滤池出水 filter effluent撇去 v. skim 滤前水，滤池进水 filter influent rapid-mix快速混合器 flash mixer , 浮渣 n. scum 浊度穿透 turbidity breakthrough浮渣槽 scum trough 过滤周期 filter cycle rapid mixer清洗周期 cleaning cycle 病毒 n. viruses v. inactivate刮砂法 scraping method 藻类 n. algae 接触时间 contact time表面刮砂 surface scraping 需氯量 chlorine demand 原生动物 n.protozoa反冲洗 backwashing 加氯量，投氯量 chlorine dosage ,水力反冲洗 hydraulic backwashing 5(氧化 n. oxidation appliedchlorine水力反冲洗 hydraulic backwash 自由氯，游离氯 free chlorine , 还原 n. reduction水力分级 hydraulic grading 氧化剂 n. oxidant free available chlorine 化合氯 combined chlorine 强氧化剂 strong oxidizing agent4(消毒 n. disinfection 剩余保护 residual protection 高级氧化法 (AOP) advanced oxidation process余氯 residual chlorine 高级氧化工艺 (AOP) advanced oxidation process v. disinfect消毒剂 n. disinfectant 余氯量 chlorine residual 高级氧化过程 (AOP) advanced oxidation process自由余氯 free residual chlorine 高级氧化技术 (AOT) disinfectionagent杀菌剂 n. germicide 自由氯余量 free chlorine residual advanced oxidation technology消毒过程 disinfection process 化合余氯 combined residual chlorine消毒副产物 disinfection by-products 化合氯余量 combined chlorine residuals 6(吸附 n. adsorption氯化 n. chlorination 折点氯化(法) breakpoint chlorination 活性炭 (AC) activated carbon折点氯化曲线 breakpoint chlorination curve 粉末炭 (PAC) powdered activated carbon v. chlorinate氯化水 chlorinated water 折点加氯量 breakpoint dosage 粒状炭 (GAC) granular activated carbon预氯化 n. prechlorination 氯折点 chlorine breakpoint 颗粒活性炭(GAC) granular activated carbon氯化消毒副产物 by压力钢瓶 pressured steel cylinder 活性炭纤维 (ACF) activated carbon fiber -products of chlorination化学消毒剂 chemical disinfectants 臭氧发生器 ozone generator 再生 n. regeneration液氯 liquid chlorine , 需臭氧量 ozone demand v. regenerate剩余臭氧量 ozone residual 吸附剂 n. adsorbent liquefied chlorine氯胺 n. chloramines 剩余臭氧 residual ozone 吸附质 n. adsorbate次氯酸盐 hypochlorites 吸附塔，吸附柱 adsorption column次氯酸钠 sodium hypochlorite 致病微生物，病源微生物吸附床adsorption bed二氧化氯 chlorine dioxide 空床接触时间 empty bed contact time pathogenic microorganisms病原体 n. pathogens 吸附带 mass transfer zone 臭氧 n. ozone臭氧化，臭氧消毒 n. ozonation 致病细菌或病毒 pathogenic bacteria or viruses 快速小柱试验 rapid small scale column test细菌 n. bacteria 臭氧化 v. ozonate 生物活性炭 (BAC) biological activated carbon紫外线 (UV) ultraviolet radiation (UV) 大肠杆菌 coliform bacteria 伽马射线 gamma radiation 阿米巴氏菌 amoebic cysts 7(离子交换 n. ion exchange孢子，芽孢 n. spores 灭活 n. inactivation 离子交换树脂 ion exchange resin离子交换器 ion exchanger 电解 n. electrolysis 底物(基质)利用substrate utilization离子交换柱 ion exchange column 电除盐 (EDI) n. electrodeionization 生物量 n. biomass硬度 n. hardness 吹脱、汽提法 n. stripping 生物反应 biological reaction除硬 hardness removal 生物氧化 biological oxidation软化 n. softening 冷却 n. cooling 生物降解 n. biodegradation冷却水 cooling water 生物降解性 n. biodegradability v. soften化学软化 chemical softening 冷却塔 cooling tower 生物可降解的，可生物降解的 a. biodegradable沉淀软化 precipitation softening 第六部分生物处理不可生物降解的 a. nonbiodegradable除盐，脱盐 n. desaltination 生物反应器 n. bioreactor 生物处理biological treatment微生物 n. microorganisms 废水生物处理 biological wastewater treatment v. desalt去矿化 n. demineralization 废水生物处理系统 biological wastewater treatment n. microbes微生物种群 microbial population v. demineralize system离子交换软化法 ion exchange softening process 混合群落 mixed communities 污水生物处理系统 biological sewage treatment 离子交换除盐法 ion exchange desalting process 细菌 n. bacteria system复床 combined bed 原生动物 n. protozoa 生物处理法 biological treatment process混合床 mixed bed 真菌 n. fungi 生物处理装置 biological treatment unit轮虫 n. rotifers 串联 in series8(膜分离 membrane separation 生长 n. growth 悬浮生长处理法suspended-growth treatment processes微滤 n. microfiltration 繁殖 n. reproduction 生物固体 biological solids超滤 n. hyperfiltration 世代时间 generation time 活性污泥 activated sludge纳滤 n. nanofiltration 生长速率 growth rates 附着生长处理法attached-growth treatment processes反渗透 reverse osmosis 环境因子 environmental factors 附着的微生物attached microbes渗透 n. osmosis 生态因子 ecological factors 微生物附着生长 attached microbial growth半透膜 semipermeable membrane 微生物生长动力学 microbial growth kinetics 生物膜 n. biofilm电渗析 n. electrodialysis 1. 迟滞期 lag phase渗析 n. dialysis 2. 对数生长期 exponential-growth phase 代谢 n. metabolism3. 减速生长期 decling growth phase v. metabolize9(其它处理方法稳定期 stationary phase 稳定，稳定化 n. stabilization 中和 n. neutralization 4. 内源呼吸阶段 endogenous stage v. stabilize 内源生长期 endogenous growth phase 生物代谢 biological metabolism v. neutralize酸性废水 acidic wastes 内源呼吸 endogenous respiration 微生物代谢microbial metabolism化学沉淀 chemical precipitation 好氧的 a. aerobic好氧菌 aerobic bacteria沉淀软化 precipitation softening 底物，基质 n. substrate好氧微生物 aerobic microorganisms 曝气池 aeration basin 非挥发性固体nonvolatile solids好氧氧化 aerobic oxidation 曝气池 aeration chamber 挥发性悬浮固体(VSS) volatile suspended solids厌氧的 a. anaerobic 完全混合曝气池 completely mixed aeration basin混合液 mixed liquor厌氧菌 anaerobic bacteria 活性污泥池 activated sludge tank 混合液悬浮固体 (MLSS) mixed liquor suspended厌氧氧化 anaerobic oxidation 曝气 n. aeration solids兼性的 a. facultative 混合 n. mixing 混合液挥发性悬浮固体 (MLVSS) mixed liquor volatile兼性菌 facultative bacteria 曝气系统 aeration system suspended solids好氧环境 aerobic environment 曝气器 n. aerator 污泥沉降比 (SV) settling velocity厌氧环境 anaerobic environment 压缩空气 compressed air 污泥容积指数(SVI) sludge volume index营养物 n. nutrients 空气压缩机，空压机 air compressor 比耗氧速率(SOUR) specific oxygen uptake rate无机营养物 inorganic nutrients 鼓风机，风机 n. blower营养物去除 nutrient removal 循环/切换 n. cycling/switchover 污泥龄sludge age营养物生物去除biological nutrient removal 扩散装置，扩散器 n. diffuser 曝气池容积 aeration tank volume脱氮除磷 nitrogen and phosphorus removal 空气扩散装置，空气扩散器air diffuser 曝气时间 aeration period生物硝化 biological nitrification 鼓泡空气扩散装置(扩散器) bubble air diffuser 曝气时间 aeration time硝化菌 nitrifying bacteria 微气泡扩散装置(扩散器) fine-bubble diffuser 水力停留时间 (HRT) hydraulic residence time 生物反硝化，生物脱氮 biological denitrification 扩散板 plate diffuser 水力负荷 hydraulic loading生物除磷 biological phosphorus removal 扩散管 tube diffuser BOD负荷BOD loading扩散罩 dome diffuser1(活性污泥法 activated sludge process 微气泡扩散曝气 fine-bubble diffused aeration 普通活性污泥法 conventional activated sludge process 微生物 n. microorganisms n. microbes 微气泡 fine-bubble 传统活性污泥法 conventional activated sludge process细菌 n. bacteria 大气泡 coarse-bubble 标准活性污泥法 standard activated sludge process生物絮体 biological floc 传统活性污泥厂 conventional activatedsludge plant 静态混合器 static mixer微生物絮体 microbial floc 机械曝气系统 mechanical aeration systems阶段曝气活性污泥step aeration activated sludge process活性污泥 activated sludge 机械曝气 mechanical aeration 分段 v. step 絮状活性污泥 flocculate-bacterial sludge 表面曝气 surface aeration进水负荷 influent load回流活性污泥 (RAS) returned activated sludge 表面曝气器 surface aerator 分段进水 step loading回流污泥 returned sludge 需氧量 oxygen demand 渐减 v. taper回流污泥 recycled sludge 供气量 air supply 渐减曝气 tapered aeration 剩余污泥 excess sludge 氧转移效率 oxygen tansfer efficiency 接触稳定活性污泥法废活性污泥 (WAS) waste activated sludge contact stabilization activated sludge process废污泥 waste sludge 可沉降固体 settleable solids 再曝气 n. reaeration曝气曝气池 aeration tank 挥发性固体 volatile solids —沉淀—再曝气进水阀 influent valve aeration-sedimentation-reaeration membrane biological reactor完全好氧处理法反应阶段 react phase 2(生物膜法沉淀阶段 settle phase complete aerobic treatment process高负荷(完全混合)活性污泥法清水，上清液 clear water 生物膜 n. biofilm上清液 n. supernatant 生物膜反应器 biofilm reactor high-rate (completely mixed) activated sludge process延时曝气活性污泥法排水阶段 draw phase 生物滤池 n. biofilter滗水阶段 decant phase 生物过滤 n. biofiltration extended aeration activated sludge process延时曝气法 extended aeration process 滗水装置 decant mechanism 旋转布水器 rotary sprinkler延时曝气 extended aeration 闲置阶段，待机阶段 idle phase 填料 n. packings氧化沟 oxidation ditch 塑料管状或蜂窝状填料 plastic tubular or 水平转刷 horizontal rotor 营养物去除 nutrient removal honeycomb-shaped packings转刷曝气 rotor aeration 营养物生物去除 biological nutrient removal滴滤池 trickling filter笼型转刷 caged rotor 碳源 carbon source 普通生物滤池 tricklingfilter吸附—生物降解工艺 (AB法) 硝化 n. nitrification 高负荷生物滤池 high-rate filter塔式生物滤池 tower biofilter adsorption-biodegradation process v. nitrify序批式活性污泥法 (SBR法) sequencing batch reactor 硝化菌 nitrifying bacteria 曝气生物滤池 (BAF) biological aerated filter (SBR) process、反硝化 n. denitrification序批式活性污泥法 (SBR法) sequential batch reactor 生物转盘法 biodisc process v. denitrify脱氮 n. denitrification 生物转盘 rotating biological contactor (SBR) processSBR法 SBR process 生物反硝化，生物脱氮生物转盘 n. biodisc序批式反应器 (SBR) sequencing batch reactor (SBR) 塑料盘片 plastic discs biological denitrification序批式反应器 (SBR) sequential batch reactor 缺氧—好氧脱氮工艺 (A/O 法) 轻质盘片 lightweight discs初沉 primary clarification 水平轴 horizontal shaft anoxic-oxic process 2 曝气 n. aeration 厌氧—缺氧—好氧法 (A/O法) 生物粘液biological slime二沉 secondary clarification 粘液层 slime layer anaerobic-anoxic-aerobic process初沉池 primary clarifier A-A-O法同步脱氮除磷工艺二沉池 secondary clarifier 生物流化床 biological fluidized bed anaerobic-anoxic-aerobic process泵送系统 pumping system 脱氮除磷 nitrogen and phosphorus removal biological fluidised bed活性污泥法 activated sludge process 厌氧氨氧化 (ANAMMOX) 生物流化床反应器 fluidized-bed bioreactor移动床生物膜反应器 (MBBR) 变体 n. variant anaerobic ammonium oxidationSBR运行周期 SBR cycle 生物除磷 biological phosphorus removal moving-bed biofilm reactor处理周期 process cycle进水阶段 fill phase 膜生物反应器 (MBR) 3(厌氧生物处理厌氧生化反应 anaerobic biochemical reaction发酵 n. fermentation 消化 n. digestion 厌氧分解 anaerobic decomposition厌氧分解 decompose anaerobically v. fermentate v. digest产酸细菌 n. acidogens 消化池 n. digestor 好氧稳定 aerobic stabilization产甲烷细菌 n. methanogens 厌氧消化 anaerobic digestion 细菌 n. bacteria产酸阶段 acidogenic phase 污泥消化 sludge digestion 藻类 n. algae产甲烷阶段 methanogenic phase 厌氧消化池 anaerobic digestor 微型植物microscopic plants水解 n. hydrolysis 厌氧接触法 anaerobic contact process 出流，出水effluent flow厌氧膨胀床反应器光合作用 n. photosynthesis v. hydrolysis产酸发酵 acidogenic fermentation anaerobic expanded-bed reactor 产氢产乙酸 H-producing acetogenesis 厌氧流化床反应器厌氧塘anaerobic pond 2产甲烷 methanogenesis 曝气塘 aerated pond anaerobic fluidized-bed reactor产酸菌 acid formers 厌氧生物转盘修饰塘 polishing pond产甲烷菌 methane formers , 熟化塘 maturation lagoon anaerobic rotating biological contactor深度处理塘 advanced treatment pond methane-forming bacteria有机酸 organic acids 4(自然生物处理系统三级处理塘 tertiary treatment pond挥发性脂肪酸 (VFAs) volatile fatty acids自然净化系统 natural purification system 土地处理工艺(过程) land treatment processes硫酸盐还原 sulfate reduction 稳定塘 stabilization ponds 关键因素critical factors硫酸盐还原菌 sulfate-reducing bacteria 土壤类型 soil type stabilization lagoons氧化塘 oxidation ponds 气候 n. climate上流式厌氧污泥床 (UASB) 土地处理系统 land treatment systems 土地处理系统 land treatment systems废水土地处理 land treatment of wastewater 慢速土地处理系统 upflow anaerobic sludge blanket上升流速 upflow velocity 净化过程 purification process slow rate land treatment system自然净化 natural purification 低负荷土地处理系统厌氧折流板反应器 (ABR) low-rate land treatment system污水塘 sewage lagoon 三级处理水平 tertiary treatment level anaerobic baffled reactor稳定塘 stabilization ponds 灌溉 n. irrigation两段或两级厌氧生物处理 two-stage anaerobic stabilization lagoons v. irrigate氧化塘 oxidation ponds 土壤的天然过滤和吸附性质 biotreatment两相厌氧生物处理 two-phase anaerobic biotreatment 好氧塘 aerobic pond natural filtration and adsorption properties of soil 产酸相 acidogenic phase 兼性塘 facultative pond 投配的废水 applied wastewater好氧生化反应垄—沟表面布水产甲烷相 methanogenic phase aerobic biochemical reaction浓缩的底流 thickened underflow ridge-and-furrow surface spreading 污泥减量 sludge volume reduction 浓缩污泥 thickened sludge 喷洒布水系统，喷灌布水系统 sprinkler systems快速渗滤土地处理系统 rapid infiltration land 污泥稳定化 sludge stabilization 出水 n. effluent上清液 n. supernatant treatment system渗滤—渗透土地处理 infiltration-percolation land (污泥)浓缩 n. thickening 溢流 v. overflow污泥浓缩 sludge thickening 堰 n. weir treatment快速渗滤 rapid infiltration 稳定，稳定化 n. stabilization 气浮浓缩floatation thickening快速渗滤法 rapid infiltration method 溶气气浮 dissolved-air floatation v. stabilize过滤作用 filtering action 稳定了的污泥 stabilized sludge 气浮池floatation tank吸附作用 adsorption action 调理(调节) n. conditioning 入流污泥influent sludge地表漫流土地处理系统污泥絮体 sludge flocs v. condition脱水 n. dewatering 撇去 v. skim overland flow land treatment system 地表漫流 overland flow 漂浮污泥层 floating sludge layer v. dewater 径流集水沟 runoff collection ditch 干化 n. drying物理、化学和生物过程污泥干化场 sludge drying bed 污泥消化 sludge digestion污泥干燥 heat drying 消化池 n. digester physical , chemical , and biological processes湿地 n. wetland 干燥器 n. dryer 消化池装置 digester unit天然湿地 natural wetland 污泥焚烧，污泥焚化 n. incineration 消化 n. digestion人工湿地 constructed wetland 焚烧炉，焚化炉 n. incinerator v. digest 有机固体 organic solids man-made wetland污泥浓缩 sludge thickening 生化分解 biochemical decomposition第七部分:污泥处理、处置与利用物理过程 physical process 好氧消化aerobic digestion污泥 n. sludge 含水过多的污泥 watery sludge 好氧污泥消化 aerobic sludge digestion生活污水污泥 sewage sludge 稀污泥 thin sludge 好氧消化过程 aerobic digestion process污泥体积，污泥量 sludge volume 处理装置 treatment unit 活性污泥池activated sludge tank原污泥，生污泥 raw sludge 浓缩池 n. thickener 预制的(成套)活性污泥处理系统新鲜污泥，生污泥 fresh sludge 重力浓缩 gravity thickening prefabricated (package) activated sludge treatment消化污泥，熟污泥 digested sludge 重力浓缩池 gravity thickener systems混合污泥 mixed sludge 圆形污水沉淀池预制的接触稳定或污泥处理 sludge treatment circular sewage sedimentation tank prefabricated contact stabilization or污泥处置 sludge disposal 刮泥机 sludge scraper 延时曝气处理系统最终处置 ultimate disposal 搅拌作用 stirring action extended aeration treatment systems填埋 n. landfill 底流 n. underflow BOD负荷 BOD loading细胞物质 cellular mass 废水回用 wastewater reuse 冷却塔水 cooling tower water内源衰亡 endogenous decay 直接回用 direct reuse 选择性处理 optional treatment直接废水回用 direct wastewater reuse 水费 water costs厌氧消化 anaerobic digestion 间接回用 indirect reuse 回用的城市污水厌氧污泥消化 anaerobic sludge digestion 间接废水回用 indirect wastewater reuse reclaimed municipal wastewater 有盖的圆形池 covered circular tank 出水处理 effluent treatment 工业过程 industrial processes 消化过程 digestion process 回用水 reclaimed water 冷却水 cooling water 厌氧消化过程 anaerobic digestion process 排放 n. , v. discharge 锅炉给水boiler feedwater 生化反应 biochemical reactions 保留 n. retention 灌溉回用 irrigation reuse 有机酸 organic acids 循环 n. recycling 废水直接灌溉direct irrigation with wastewater 挥发性脂肪酸 (VFAs) volatile fatty acids 低负荷土地处理系统 low-rate land treatment system v. recycle 甲烷气 methane gas 部分处理 n. partial treatment 间接灌溉回用indirect reuse for irrigation 末端产物 end product 最终用途 end use 废水排放 wastewater discharge 指示剂 n. indicator 城市污水回用 municipal wastewater reuse 雨水回用 storm water reuse 污泥消化池气体 sludge digester gas 灌溉 n. irrigation 可回用水 reusable water 污泥沉淀 sludge settling 景观灌溉 landscape irrigation Part ?: 第九部分:污泥储存 sludge storage 地下水回灌 groundwater recharge 投资成本，投资费(用) capital costs 消化污泥 digested sludge 建设成本，建设费(用) construction costs充分消化的污泥 well-digested sludge 市政回用 municipal reuse 运行成本，运行费(用) operating costs 消化池上清液 digester supernatant 直接市政回用 direct municipal reuse 能耗成本 energy costs 中温消化 mesophilic digestion 深度处理，高级处理 advanced treatment 运行维护 operation and maintenance 高温消化 thermophilic degestion 分质供水系统 dual-distribution system 运行控制 operational control间接市政回用 indirect municipal reuse 控制系统 control system污泥脱水 sludge dewatering 供水系统，给水系统 water supply system 仪表/控制系统混合堆肥 co-composting 取水口 n. intake instrumentation/control system天然同化能力 natural assimilative capacity 自动控制系统，自控系统污泥处理总成本overall sludge-handling costs 人工回灌 artificial recharge automatic control system深井注射 deep-well injection第八部分:废水回用浅表布水 shallow surface spreading地表水资源 surface water resource 渗透 n. percolation地下水资源 groundwater resource 工业回用 industrial reuse水短缺 water scarcity 工艺废水，过程废水 process wastewaters回用 n. , v. reuse 工艺补充水，过程补充水 plant process makeup water。

给排水工程外文翻译 Final approval draft on November 22, 2020Short and Long Term Advantage roof drainage design performanceDecade has witnessed great changes in the design of the roof drainage system recently, particularly, siphon rainwater drainage system has been gradually improved, and there is likely to be the key application. At the same time these changes, urban drainage system design has undergone tremendous changes, because the scope of a wider urban drainage system design for sustainable development, as well as people for climate change flooding more attention. The main contents of this article is how to design roof drainage systems and make a good performance. Special attention is how to get rid of bad habits already formed the design, but also need to consider innovative roof drainage system, such as green roofs and rainwater harvesting systems.Practical application: In the past few years, the design of the roof rainwater drainage system has undergone tremendous changes. On large buildings, siphon rainwater drainage technology has been very common, as well as green roofs because it is conducive to green development, being more and more applications. Taking into account the ongoing research, this article focuses on how to effectively design a variety of roof rainwater drainage system, and make it achieve the desired design effect.1. IntroductionIn the past decade, the city and the water drainage system design has been widely accepted thinking about sustainable urban drainage system, or the optimal management direction. The main principles of the design of these systems is both a local level in line with the quality of development, but also to create some economic benefits for the investors. This principle has led to the development of new changes in the sump. Although the application of such a device is gradually reduced, but the urban environment relatively high demand areas still require 100% waterproof and rapid drainage, such as the roof. Typically roof drainage system in the design, construction and maintenance has not been given due attention. Although the drainage system investment costs account for only a small portion of the total construction investment, but not able to judge the loss caused by poor design.There are two different forms of roof drainage system design methods, namely the traditional and siphon method. Traditional systems rely on atmospheric pressure work, the drive ram affectedsink flow depth. Therefore, the conventional roof drainage systems require a relatively large diameter vertical drop tube, prior to discharge, all devices must be connected to the groundwatercollection pipe network. In contrast, siphonic roof drainage pipe systems are generally designed to full flow (turbulent flow meansthat require less exhaust pipe), which will form a negative pressure, the larger the higher flow rate and pressure head. Typically siphon system requires less down pipe work under negative pressure to the water distribution network can mean higher altitude work, thereby reducing the amount of underground pipe network.Both systems consists of three parts: the roof, rainwater collection pipes, pipe network.All of these elements are able to change the water pressure distribution system. This section focuses on the role and performance of each part. Due to the principle of siphon system has not been well understood, resulting argument is relatively small, this article will highlight siphon system.2. RoofThe roof is usually designed by the architect, designer and not by the drainage design. There are three main roof.2.1 Flat roofFlat roofs are used in industrial buildings less rainfall regions and countries. This roof is not completely flat, but lower than the minimum roof slope may require. For example, the United Kingdom require maximum slope of 10 °. Setting minimum slope in order to avoid any unnecessary water.Despite the flat roof if it is not properly maintained will have more problems, but it will reduce the dead zone within the building, and the ratio of sloping roofs in favor of indoor air.2.2 sloping roofsMost residential and commercial buildings are pitched roof, inclined roof is the biggest advantage can quickly drain, thereby reducing leakage. In temperate regions, we need to consider carrying roof snow load. Once it rains, rainfall through the sloping roofs can be determined by calculation. When rainfall data can be used, you can use the kinematic theory to solve such problems.2.3 green roof (flat or inclined)It can prove roof is the oldest green roofs, including rainfall can reduce or disperse roof planted with plants. It can be planted with trees and shrubs roof garden, it can also be a vegetated roof light carpet. Wherein the latter technique has been widely used. Some of these applications tend to focus on aesthetic requirements and are often used in green development. Since the aesthetic requirements and pressure requirements, as well as green roofs thermal insulation function, reduce the heat island effect, silencer effect, extend the life of the roof.Green roofs in Germany, the most widely used, followed in North America, but to consider the impact on the aesthetics. Germany is by far the most experienced countries in the 19th century have practical application, then as an alternative to reduce the risk of fire tarroof an option in urban areas. Germany is currently the main research question on the cultivation of other issues to consider smaller cities. A study from 1987 to 1989, was found packed with 70 mm thick green roof can be reduced by 60% -80% of heat loss. In a Canadianwork computer model based on the roof indicates that as long as the sump, the area can reach 70% of the roof area can be reduced by 60 percent in one year, the same model was also used for artificial rainfall, which the results indicate that rainfall in the catchment season helps to drain away rainwater.However, none of these studies show that green roofs can play a useful role in the rainfall season, or how high collection efficiency of water supply. The United States did some tests, as long as the green roofs regular watering, can reduce 65 percent of the runoff ina rainfall. America's most authoritative green roof guidelines by the New Jersey state environmental agencies promulgated. The mainprinciple is to solve the structural problems of light, and how can the normal drainage after two years.Rainfall period is based on the probability of failure is determined. The system is typically based on rainfall during rainstorms two minutes, two minutes, have a choice. Although this model will get more traffic, but there is no other better alternative. Studies have shown that the traditional model is applied to study green roofs are premature.Loss factor than traditional roof records should be small, about 98.7%.Peak flow will be reduced, although not penetrate, the surface roughness but also have a significant impact.Concentrated rainfall than two minutes for a long time,especially for large roof areas, such as public buildings, commercial buildings, industrial buildings.Urban drainage design should also consider other factors, for a complex system, a green roof in a rain is not enough. Water flow duration curve shows a longer than traditional systems. And two independent and will affect between is possible, which requires a more precise time period.3. Rainwater CollectorBasic requirements rainwater collector is designed to be able to accommodate rainfall rainstorms. Although it is possible to make a slightly inclined roof drainage purposes, but the nature of the construction industry and building settlement will become flat roofTypically, the tank is placed in a horizontal, sectional view of the water is outwardly inclined, which the role of hydrostatic.3.1 drain outletAnalyzing rainwater collector has sufficient volume is the key to the sump outlet external setting conditions. Also affect the flow rate into the storm water drainage system piping, but also affect the depth of the water catchment. Although the depth of the sump will not bring any particular problems, but too deep can cause excessive sump.Numerous studies in the 1980s showed that the flow of conventional roof drainage system outlet can be divided into two cases. It depends on the size of the depth and size of the outlet. When the water depth is less than half the diameter of the outlet, the flow of the first type, and the outlet of the flow can be calculated by an appropriate equation; water depth increases, exports are slowly clogging the flow will become another form forms, at the same time, the flow of exports can be obtained through other equations. While conventional roof drainage systems are designed to be free-draining, but may cause limitations encountered in the design of the flow is not free. In this case, it will require additional depth.Siphon roof drainage systems, the outlet is designed to be submerged stream. In this case, the depth of the outlet of the decision is more complicated, because the design of the sump depends on the flow. Recent studies have shown that conventional roof drainage systems use a variety of non-standard catchment, their depth and height, bigger than the diameter of the outlet. This will eventually result in a siphon effect. For a given catchment, the flow depends on the starting end of the drop tube diameter. A similar phenomenon has also been used to study the standard catchment, in these circumstances, only limited siphon action occurs within relatively close distance from the exit.3.2 tank flow classificationIn the complex flow sump outlet flow classification, can be seen from Table 2a, the flow will be uniform layering, regardless of whether the same inlet flow. Table 2b and 2c show, exportdistribution will greatly influence the flow.When the outlet is not a free jet, sump outlet complex flow classification is difficult to describe. Because each catchment tank pressures are likely to be merged. For example, the siphon tube system design point is at near full jet outlet flow classification depends on the energy loss of each branch.3.3 hydrostatic sectionalSump shape of the water surface in the canal can be classified according to the flow equation. In most cases, a low flow rate meansthat there is less friction loss, if exports are free jet, thefriction loss is negligible cross-section through the hydrostatic equation 1 to determine the horizontal distance.Where Q-- flow (m3 / s)T- surface width (m)g- acceleration of gravity (m / s2)F- flow area (m2)Equation 1 can not be ignored when the friction required to correct (or very long pipe velocity is large), or not a free jet.3.4 The current design methodsThe previous discussion has highlighted the main factors that should be considered with sink design. However, without the help of a certain number of models, computing hydrostatic sectional roof drainage system, the volume of the sump is possible. This large commercial and manufacturing industry, is a development opportunity, you can merge several kilometers of water routes. Thus, the conventional drainage system sump design methods are mainly based on experience, and assume that exports are free jet.Sump location in the building, it may cause the example to fail. Different interface sumpExcept in the case cited above, but also allows designers to use empirical data.3.5 Digital ModelLarge number of digital models can be used to accurately describe the flow of any form of catchment tank, regardless of whether the roof flows stable. An example of this model is a combination of roof space model. This model enables users to classify different aspects of the data indicated, includes: details of the rains, the roof surface drainage and other details. Kinematics have also been used to study rainwater tank to flow from the research collection. A typical method is based on open system to solve a basic problem of spatial mobility. This model automatically resolve the sump outlet flow situation, but also to deal with the case of free jet can also be simulated space limited mobility and submerged discharge. Output values include depth and flow rate.Currently, the model is essentially just a variety of research tools, but also through practical engineering test. However, we should face up to the various role models.4 pipe systems groupComposition in the form and scope of the tube group determinesthe roof drainage system relies mainly on the traditional system or siphon action.4.1 Traditional stormwater systemsConventional roof drainage systems, the ground plane is generally vertical pipe-line network, connected to the sump outlet and underground drainage systems, critical systems as well as compensating tube. It should be emphasized that the angle between the ground and the compensating tube is less than 10 °. Capacity of the entire system relies mainly on the outlet tube instead of down.Flow vertical tube is usually free-flowing, full of only 33%, the efficiency depends on the excess length of the tube. If the drop tube long enough (typically greater than 5m), there may be an annular flow. Similarly, under normal circumstances flow compensation pipe is free-flowing, full of up to 70%. Such designed process both for the design, various equations can also be used.4.2 Siphon roof drainage systemIn contrast with the traditional drainage systems, Siphon roof drainage system relies on air flow outside the system, and the tubeis full pipe flow stream.The designs are usually made on the assumption that the design of heavy rain, the system can quickly siphon discharge rainwater. This assumption allows the application of hydrostatic siphon system theory. Often used steady flow energy equation. While this approach ignores the small amount of energy loss at the entrance, but after the experiment showed that there are still conducive to practical use.However, steady-state design methods in the siphon system is exposed to rain when the system does not meet the standard requirements or changes in rainfall intensity is large is not applied. In the first case, there will be some mixing of air quality, annular flow occurs. These problems are not integrated in the system when more serious. Because usually designed rains are common, it is clear now design methodology over time may not apply to siphon system. This is a major disadvantage, because the design of the main problem isthe noise and vibration problems.Despite the disadvantages of the prior design approach, but a lot of the world's very few engineering failure reports. When a failure occurs, most likely for the following reasons:An incorrect understanding of the operation pointsSubstandard materials listInstallation defectsMaintenance mismanagementTo overcome these disadvantages, we have recently launched aseries of research projects, to discuss the siphon system, and the development of digital models. From this work we learn a lot.In contrast with conventional design methods of some assumptions, siphon system mainly has the following aspects:1) non-flow system of full flow2) levels of certain pipe-flowing full pipe flow3) full pipe flow downstream propagation through a vertical pipe, riser, etc.4) the inner tube flow occurs over the vertical section, the system to reduce the pressure5) downward tube is full pipe flow, there will be air lock6) appears completely siphon action until well into the air system is lower than a certain levelTable 4a column data indicate that below the design point, the system will siphon unstable flow, depth of the water collecting tank is insufficient to maintain the siphon action. Table 4b show that the unsteady flow in siphon system when it will appear.Table 5 lists the data output of a digital model. It can be seen that the model can accurately describe the siphon action, siphon and steady state, the data also show that the model can accurately describe the complex siphon action.5 ConclusionThis article has illustrated the critical roof drainage systems, but these are often overlooked in the urban drainage system design. This article also shows that the design process is a complex process, rely mainly on the performance of exports. The following conclusions are based on the design summed up:1) Run depend on three interacting parts: the roof, sump, water pipes2) Green roofs can reduce traffic and beautify the city3) the export performance of the system is essential4) siphon drainage system have a greater advantage in large-scale projects, but must be considered high maintenance costs5) Design siphon drainage system should consider additional capacity and operational issuesAlthough the green roof is a more attractive option, but the traditional roof of a building in the country will continue to dominate. Green roofs will be gradually developed, and gradually been widely accepted. Similarly, the roof drainage system shown effective that it will continue to play a huge role in the commercial building drainage systems.Roof drainage system of the greatest threats from climate change, existing systems tend to be not simply aging; rainfall patterns of change will result in inefficient operation, self-cleaning rate will be reduced. Changes in wind speed and the roof will also accelerate the aging of the roof, it is necessary to carry out maintenance. Taking into account the climate change, the increase in materials, roof collected rainwater will be more extensive. Currently, the amount of rain around the globe per person per day 7-300 liters in the UK, with an average consumption of 145L / h / d, of which onlyabout one liter is used by people, about 30 per cent of the toilet, study shows If water shortage, rainwater collected on the roof of developed and developing countries are recommended approach.屋顶排水设计性能的近期与远期优势最近十年见证了屋顶排水系统设计方面的巨大变化，特别的是，虹吸雨水排水系统已经得到逐步改善，并且有可能得到重点应用。

给排水专业英语李康
给排水专业英语翻译为"Plumbing and Drainage Engineering"。

在给排水专业中，有一些常用的英语词汇和短语，如下所示：
1. Plumbing - 管道安装
2. Drainage - 排水系统
3. Piping - 管道
4. Sewer - 下水道
5. Water supply - 供水系统
6. Water distribution - 配水系统
7. Plumbing fixtures - 卫浴设备
8. Sanitary fittings - 卫生设备
9. Ventilation - 通风系统
10. Pumping station - 泵站
11. Sewage treatment - 污水处理
12. Stormwater management - 雨水管理
13. Plumbing code - 管道安装规范
14. Plumbing design - 管道设计
15. Plumbing installation - 管道安装
16. Plumbing maintenance - 管道维护
17. Plumbing repair - 管道维修
18. Plumbing inspection - 管道检查
19. Water conservation - 节水
20. Backflow prevention - 防止倒流
以上是一些常见的给排水专业英语词汇和短语，希望对你有帮助！。

给排水常用名词中英文对照1、给水工程 water supply engineering 原水的取集和处理以及成品水输配的工程。

-2、排水工程 sewerage ,wastewater engineering 收集、输送、处理和处置废水的工程。

3、给水系统 water supply system 给水的取水、输水、水质处理和配水等设施以一定方式组合成的总体。

4、排水系统 sewerage system 排水的收集、输送、水质处理和排放等设施以一定方式组合成的总体。

5、给水水源 water source 给水工程所取用的原水水体。

6、原水raw water 由水源地取来的原料水。

7、地表水surface water 存在于地壳表面，暴露于大气的水。

8、地下水ground water 存在于地壳岩石裂缝或工壤空隙中的水。

9、苦咸水(碱性水) brackish water ,alkaline water 碱度大于硬度的水，并含大量中性盐，PH值大于7。

10、淡水fresh water 含盐量小于500mg/L的水。

11、冷却水cooling water 用以降低被冷却对象温度的水。

12、废水 wastewater 居民活动过程中排出的水及径流雨水的总称。

它包括生活污水、工业废水和初雨径流以及流入排水管渠的其它水。

13、污水sewage ,wastewater 受一定污染的来自生活和生产的排出水。

14、用水量 water consumption 用水对象实际使用的水量。

-15、污水量 wastewater flow ,sewage flow 排水对象排入污水系统的水量。

16、用水定额 water flow norm 对不同的排水对象，在一定时期内制订相对合理的单位排水量的数值。

17、排水定额 wastewater flow norm 对不同的排水对象，在一定时期内制订相对合理的单位排水量的数值。

18、水质 water quality 在给水排水工程中，水的物理、化学、生物学等方面的性质。

Sewage treatmentSewage treatment, or domestic wastewatertreatment, is the process of removing contaminantsfrom wastewater and household sewage, bothrunoff (effluents) and domestic. It includesphysical, chemical, and biological processes toremove physical, chemical and biologicalcontaminants. Its objective is to produce a wastestream (or treated effluent) and a solid waste orsludge suitable for discharge or reuse back into theenvironment. This material is often inadvertentlycontaminated with many toxic organic andinorganic compounds.Origins of sewageSewage is created by residences, institutions, and commercial and industrial establishments. Raw influent (sewage) includes household waste liquid from toilets, baths, showers, kitchens, sinks, and so forth that is disposed of via sewers. In many areas, sewage also includes liquid waste from industry and commerce. The separation and draining of household waste into greywater and blackwater is becoming more common in the developed world, with greywater being permitted to be used for watering plants or recycled for flushing toilets. A lot of sewage also includes some surface water from roofs or hard-standing areas. Municipal wastewater therefore includes residential, commercial, and industrial liquid waste discharges, and may include stormwater runoff. Sewage systems capable of handling stormwater are known as combined systems or combined sewers. Such systems are usually avoided since they complicate and thereby reduce the efficiency of sewage treatment plants owing to their seasonality. The variability in flow also leads to often larger than necessary, and subsequently more expensive, treatment facilities. In addition, heavy storms that contribute more flows than the treatment plant can handle may overwhelm the sewage treatment system, causing a spill or overflow. It is preferable to have a separate storm drain system for stormwater in areas that are developed with sewer systems.As rainfall runs over the surface of roofs and the ground, it may pick up various contaminants including soil particles and other sediment, heavy metals, organic compounds, animal waste, and oil and grease. Some jurisdictions require stormwater to receive some level of treatment before being discharged directly into waterways. Examples of treatment processes used for stormwater include sedimentation basins, wetlands, buried concrete vaults with various kinds of filters, and vortex separators (to remove coarse solids).Process overviewSewage can be treated close to where it is created (in septic tanks, biofilters or aerobic treatment systems), or collected and transported via a network of pipes and pump stations to a municipal treatment plant (see sewerage and pipes and infrastructure). Sewage collection and treatment istypically subject to local, state and federal regulations and standards. Industrial sources of wastewater often require specialized treatment processes (see Industrial wastewater treatment).Conventional sewage treatment may involve three stages, called primary, secondary and tertiary treatment. Primary treatment consists of temporarily holding the sewage in a quiescent basin where heavy solids can settle to the bottom while oil, grease and lighter solids float to the surface. The settled and floating materials are removed and the remaining liquid may be discharged or subjected to secondary treatment. Secondary treatment removes dissolved and suspended biological matter. Secondary treatment is typically performed by indigenous, water-bornemicro-organisms in a managed habitat. Secondary treatment may require a separation process to remove the micro-organisms from the treated water prior to discharge or tertiary treatment. Tertiary treatment is sometimes defined as anything more than primary and secondary treatment. Treated water is sometimes disinfected chemically or physically (for example by lagoons and microfiltration) prior to discharge into a stream, river, bay, lagoon or wetland, or it can be used for the irrigation of a golf course, green way or park. If it is sufficiently clean, it can also be used for groundwater recharge or agricultural purposes.Process Flow Diagram for a typical large-scale treatment plantPre-treatmentPre-treatment removes materials that can be easily collected from the raw wastewater before they damage or clog the pumps and skimmers of primary treatment clarifiers (trash, tree limbs, leaves, etc).ScreeningThe influent sewage water is strained to remove all large objects carried in the sewage stream. This is most commonly done with an automated mechanically raked bar screen in modern plants serving large populations, whilst in smaller or less modern plants a manually cleaned screen may be used. The raking action of a mechanical bar screen is typically paced according to the accumulation on the bar screens and/or flow rate. The solids are collected and later disposed in a landfill or incinerated.Grit removalPre-treatment may include a sand or grit channel or chamber where the velocity of the incoming wastewater is carefully controlled to allow sand, grit and stones to settle.Primary treatmentIn the primary sedimentation stage,sewage flows through large tanks,commonly called "primary clarifiers" or"primary sedimentation tanks". The tanksare large enough that sludge can settle andfloating material such as grease and oilscan rise to the surface and be skimmed off.The main purpose of the primarysedimentation stage is to produce both agenerally homogeneous liquid capable ofbeing treated biologically and a sludgethat can be separately treated or processed.Primary settling tanks are usuallyequipped with mechanically drivenscrapers that continually drive the collected sludge towards a hopper in the base of the tank from where it can be pumped to further sludge treatment stages. Grease and oil from the floating material can sometimes be recovered for saponification.Secondary treatmentSecondary treatment is designed to substantially degrade the biological content of the sewage which are derived from human waste, food waste, soaps and detergent. The majority of municipal plants treat the settled sewage liquor using aerobic biological processes. For this to be effective, the biota require both oxygen and a substrate on which to live. There are a number of ways in which this is done. In all these methods, the bacteria and protozoa consume biodegradable soluble organic contaminants (e.g. sugars, fats, organic short-chain carbon molecules, etc.) and bind much of the less soluble fractions into floc. Secondary treatment systems are classified as∙fixed-film or∙suspended-growth.Fixed-film OR attached growth system treatment process including trickling filter and rotating biological contactors where the biomass grows on media and the sewage passes over its surface.In suspended-growth systems, such as activated sludge, the biomass is well mixed with the sewage and can be operated in a smaller space than fixed-film systems that treat the same amount of water. However, fixed-film systems are more able to cope with drastic changes in the amount of biological material and can provide higher removal rates for organic material and suspended solids than suspended growth systems.Roughing filters are intended to treat particularly strong or variable organic loads, typically industrial, to allow them to then be treated by conventional secondary treatment processes. Characteristics include typically tall, circular filters filled with open synthetic filter media to which wastewater is applied at a relatively high rate. They are designed to allow high hydraulic loading and a high flow-through of air. On larger installations, air is forced through the media using blowers. The resultant wastewater is usually within the normal range for conventional treatment processes.Activated sludgeMain article: Activated sludgeIn general, activated sludge plantsencompass a variety of mechanisms andprocesses that use dissolved oxygen topromote the growth of biological floc thatsubstantially removes organic material.The process traps particulate material andcan, under ideal conditions, convertammonia to nitrite and nitrate and ultimatelyto nitrogen gas, (see also denitrification).Surface-aerated basinsMost biological oxidation processesfor treating industrial wastewatershave in common the use of oxygen (orair) and microbial action.Surface-aerated basins achieve 80 to90% removal of Biochemical OxygenDemand with retention times of 1 to10 days. The basins may range indepth from 1.5 to 5.0 metres and usemotor-driven aerators floating on thesurface of the wastewater.In an aerated basin system, theaerators provide two functions: they transfer air into the basins required by the biological oxidation reactions, and they provide the mixing required for dispersing the air and for contacting the reactants (that is, oxygen, wastewater and microbes). Typically, the floating surface aerators are rated to deliver the amount of air equivalent to 1.8 to 2.7 kg O2/kW·h. However, they do not provide as good mixing as is normally achieved in activated sludge systems and therefore aerated basins do not achieve the same performance level as activated sludge units.Biological oxidation processes are sensitive to temperature and, between 0 °C and 40 °C, the rate of biological reactions increase with temperature. Most surface aerated vessels operate at between 4 °C and 32 °C.Filter beds (oxidizing beds)Main article: Trickling filterIn older plants and plants receiving more variable loads, trickling filter beds are used where the settled sewage liquor is spread onto the surface of a deep bed made up of coke (carbonized coal), limestone chips or specially fabricated plastic media. Such media must have high surface areas to support the biofilms that form. The liquor is distributed through perforated rotating arms radiating from a central pivot. The distributed liquor trickles through this bed and is collected in drains at the base. These drains also provide a source of air which percolates up through the bed, keeping it aerobic. Biologica l films of bacteria, protozoa and fungi form on the media’s surfaces and eat or otherwise reduce the organic content. This biofilm is grazed by insect larvae and worms which help maintain an optimal thickness. Overloading of beds increases the thickness of the film leading to clogging of the filter media and ponding on the surface.Biological aerated filtersBiological Aerated (or Anoxic) Filter (BAF) or Biofilters combine filtration with biological carbon reduction, nitrification or denitrification. BAF usually includes a reactor filled with a filter media. The media is either in suspension or supported by a gravel layer at the foot of the filter. The dual purpose of this media is to support highly active biomass that is attached to it and to filter suspended solids. Carbon reduction and ammonia conversion occurs in aerobic mode and sometime achieved in a single reactor while nitrate conversion occurs in anoxic mode. BAF is operated either in upflow or downflow configuration depending on design specified by manufacturer.Membrane bioreactorsMembrane bioreactors (MBR) combine activated sludge treatment with a membrane liquid-solid separation process. The membrane component uses low pressure microfiltration or ultra filtration membranes and eliminates the need for clarification and tertiary filtration. The membranes are typically immersed in the aeration tank; however, some applications utilize a separate membrane tank. One of the key benefits of an MBR system is that it effectively overcomes the limitations associated with poor settling of sludge in conventional activated sludge (CAS) processes. The technology permits bioreactor operation with considerably higher mixed liquor suspended solids (MLSS) concentration than CAS systems, which are limited by sludge settling. The process is typically operated at MLSS in the range of 8,000–12,000 mg/L, while CAS are operated in the range of 2,000–3,000 mg/L. The elevated biomass concentration in the MBR process allows for very effective removal of both soluble and particulate biodegradable materials at higher loading rates. Thus increased Sludge Retention Times (SRTs) — usually exceeding 15 days — ensure complete nitrification even in extremely cold weather.The cost of building and operating an MBR is usually higher than conventional wastewater treatment. Membrane filters can be blinded with grease or abraded by suspended grit and lack a clarifier's flexibility to pass peak flows. The technology has become increasingly popular for reliably pretreated waste streams and has gainedwider acceptance where infiltration and inflowhave been controlled, however, and the life-cyclecosts have been steadily decreasing. The smallfootprint of MBR systems, and the high qualityeffluent produced, make them particularly usefulfor water reuse applications.There are MBR plants being built throughout theworld, including North Librty, Iowa, Georgia, andCanada.Secondary sedimentationThe final step in the secondary treatment stage is to settle out the biological floc or filter material and produce sewage water containing very low levels of organic material and suspended matter.Rotating biological contactorsMain article: Rotating biological contactorRotating biological contactors(RBCs) are mechanical secondarytreatment systems, which arerobust and capable ofwithstanding surges in organicload. RBCs were first installed inGermany in 1960 and have sincebeen developed and refined into areliable operating unit. Therotating disks support the growthof bacteria and micro-organismspresent in the sewage, whichbreakdown and stabilise organicpollutants. To be successful, micro-organisms need both oxygen to live and food to grow. Oxygen is obtained from the atmosphere as the disks rotate. As the micro-organisms grow, they build up on the media until they are sloughed off due to shear forces provided by the rotating discs in the sewage. Effluent from the RBC is then passed through final clarifiers where the micro-organisms in suspension settle as a sludge. The sludge is withdrawn from the clarifier for further treatment.A functionally similar biological filtering system has become popular as part of home aquarium filtration and purification. The aquarium water is drawn up out of the tank and then cascaded over a freely spinning corrugated fiber-mesh wheel before passing through a media filter and back into the aquarium. The spinning mesh wheel develops a biofilm coating of microorganisms that feed on the suspended wastes in the aquarium water and are also exposed to the atmosphere as the wheel rotates. This is especially good at removing waste urea and ammonia urinated into the aquarium water by the fish and other animals.。

（一）给排水设计基本术语1、给排水工程的通用术语2．给排水工程中系统和水量方面的术语（1）直流水系统once through system水经一次使用后即行排放或处理后排放的给水系统。

（2）复用水系统water reuse system水经重复利用后再排放或处理后排放的给水系统。

（3）循环水系统water reuse system水经使用后不予排放而循环利用或处理后循环利用的水系统。

（4）生活用水domestic water人类日常生活所需用的水。

（5）生产用水process water生产过程所需用的水。

（6）消防用水fire demand消防用水fire demand（7）浇洒道路用水street flushing demand, road watering对城镇道路进行保养、清洗、降温和消尘等所需用的水。

（8）绿化用水green belt sprinkling, green plot sprinkling对市政绿地等所需用的水。

（9）未预见用水量unforeseen demand给水系统设计中，对难于预不测的各项因素而准备的水量。

（10）自用水量water consumption in water-works 水厂内部生产工艺过程和为其它用途所需用的水量。

（11）管网漏失水量leakage水在输配过程中漏失的水量。

（12）平均日供水量average daily coefficient一年的总体供水量除以全年供水天数所得的数值。

（13）最高日供水量maximum service coefficient 最高日供水量与平均日供水量的比值。

（14）日变化系数daily variation coefficient最高日最高时供水量与该日平均时供水量的比值（15）时变化系数hourly variation cofficient最高日最高时供水量与该日平均时供水量的比值。

（16）最小服务水头minimum service head配水管网在网户接管点处应维持的最小水头。