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《水污染控制工程》课程设计学院：专业：XX：学号：指导老师：目录引言41设计任务及设计资料5 1.1设计任务与内容51.2设计原始资料51.2.1城市气象资料51.2.2地质资料51.2.3设计规模51.2.4进出水水质62、设计说明书6 2.1去除率的计算62.1.1溶解性BOD的去除率65的去除率：72.1.2 CODr2.1.3.SS的去除率：72.1.4.总氮的去除率：72.1.5.磷酸盐的去除率82.2城市污水处理工艺选择82.3、污水厂总平面图的布置92.4、处理构筑物设计流量(二级)92.5、污水处理构筑物设计92.5.1.中格栅和提升泵房（两者合建在一起）9 2.5.2、沉沙池102.5.3、厌氧池112.5.4、缺氧池112.5.5、好氧曝气池112.5.6、二沉池122.6、污泥处理构筑物的设计计算122.6.1污泥泵房122.6.2污泥浓缩池122.7、污水厂平面，高程布置132.7.1平面布置132.7.2管线布置132.7.3 高程布置143 污水厂设计计算书14 3.1污水处理构筑物设计计算143.1.1泵前中格栅143.1.2污水提升泵房163.1.3、泵后细格栅173.1.3、沉砂池183.1.4、厌氧池203.1.5、缺氧池计算203.1.6、好氧曝气池的设计计算213.1.8、二沉池283.2 污泥处理部分构筑物计算313.2.1污泥浓缩池设计计算：313.3、高程计算363.3.1污水处理部分高程计算:363.3.2高程图见CAD图363.3.3污水处理厂工艺流程图与总平面布置图36参考文献37XX市污水处理厂A/A/O工艺设计作者：闫赛红，指导教师：孙丰霞（XX农业大学资源与环境学院）【摘要】随着社会进步，人们对于城市污水的处理的要求愈加严格。
除了基本的去除污水中BOD和SS的要求外，通常还要求脱氮除磷，以保护水体环境。
本设计即采用了众多脱氮除磷工艺中较为经济合理的AAO工艺对进入污水厂的污水进行处理。
目录第一章．设计概述...................................1.1工程概述....................................1.2原始资料............................................................................................................................1.3设计要求....................................1.4设计成果.................................... 第二章．处理工艺方案选择...........................2.1工艺方案选择原则............................2.2工艺比较....................................2.3工艺流程....................................2.4 主要构筑物的选择............................2.4.1 格栅 .............................................................................................................................................................................................................................................................. 第三章.污水构筑物设计计算..........................3.1进水管道设计................................3.2粗格栅..............................................................................................................................3.3细格栅..............................................................................................................................3.4污水提升泵房............................................................................3.5平流式沉砂池................................3.5.1 沉砂池的长度 ..........................3.5.2 过水断面的面积 ........................3.5.3 沉砂池宽度 ........................................................................................................................................................................................................................................................3.5.9 验算最小流速 ..............................................................................................................................................................3.6 辐流式初沉池............................... (23)............................................3.7生化池..............................................................................................................................3.7.3 进出水系统 ................................................................................................................................................................3.8辐流式二沉池........................................................................................................................3.9液氯消毒........................................................................................................................................................................3.10 计量堰............................................................................................................................. 第四章污泥构筑物设计计算..........................4.1 污泥浓缩池设计..............................4.1.1 污泥量计算 .....................................................................................................................4.2 贮泥池设计..................................4.2.1 贮泥池设计进泥量 ......................4.2.2 贮泥池容积 ............ 错误!未定义书签。
本设计污水处理厂综合设计包括15个图纸，十分全面，具体详见报告后附图。
本报告附图全面详细。
图纸内容如下：A2O池，初沉池，幅流式二沉池，隔栅，工艺简单图，工艺流程图（高程图），回转耙式格栅除污机图，平面布置图，污泥浓缩池，厌氧消化池，钟式沉砂池等。
全为CAD制图。
下载后复制放大或打印可看清！题目20000m3/d城市污水处理厂综合设计专业: 环境工程年级: 2005级学号: 3105001286姓名: 莫笑伟指导教师:2008年12 月摘要我国水体污染主要来自两方面，一是工业发展超标排放工业废水，二是城市化中由于城市污水排放和集中处理设施严重缺乏，大量生活污水未经处理直接进入水体造成环境污染。
工业废水近年来经过治理虽有所减少，但城市生活污水有增无减，占水质污染的51%以上。
我国水体污染主要来自两方面，一是工业发展超标排放工业废水，二是城市化中由于城市污水排放和集中处理设施严重缺乏，大量生活污水未经处理直接进入水体造成环境污染。
工业废水近年来经过治理虽有所减少，但城市生活污水有增无减，占水质污染的51%以上。
本设计要求处理水量为20000m3/d的城市生活污水，设计方案针对已运行稳定有效的A2/O活性污泥法工艺处理城市生活污水。
A2O工艺由于不同环境条件，不同功能的微）能生物群落的有机配合，加之厌氧、缺氧条件下，部分不可生物降解的有机物（CODNB被开环或断链，使得N、P、有机碳被同时去除，并提高对COD的去除效果。
它可以同NB－－时完成有机物的去除，硝化脱氮、磷的过量摄取而被去除等功能，脱氮的前提是NH3N应完全硝化，好氧池能完成这一功能，缺氧池则完成脱氮功能。
厌氧池和好氧池联合完成除磷功能。
关键词：城市生活污水，活性污泥，A2/O目录摘要 (III)目录 (IV)第一章设计概述 ······································································- 7 -1设计任务 ······································································- 7 - 2设计原则 ······································································- 7 - 3设计依据 ······································································- 8 - 第二章工艺流程及说明 ·····························································- 8 -1工艺方案分析 ································································- 8 - 2工艺流程 ······································································- 9 - 3流程各结构介绍 ·····························································- 9 -3.1格栅······························································································· - 9 -3.2沉砂池··························································································- 10 -3.3初沉池··························································································- 10 -3.4生物化反应池··············································································- 10 -3.5二沉池··························································································- 12 -3.6浓缩池··························································································- 12 - 第三章构筑物设计计算 ··························································· - 12 -1格栅 ·········································································· - 12 -1.1设计说明······················································································- 12 -1.2设计计算······················································································- 13 -2沉砂池 ······································································· - 16 -2.1设计说明······················································································- 16 - 3初沉池 ······································································· - 17 -3.1设计说明······················································································- 17 -3.2设计计算······················································································- 17 - 4生化池 ······································································· - 19 -4.1设计说明······················································································- 19 -4.2设计计算······················································································- 19 - 5二沉池 ······································································· - 26 -5.1设计说明······················································································- 26 -5.2设计计算······················································································- 26 - 6液氯消毒 ···································································· - 29 -6.1设计说明······················································································- 29 -6.2设计计算······················································································- 29 - 7污泥浓缩池 ································································· - 30 -7.1设计说明······················································································- 30 -7.2设计计算······················································································- 30 -8 污泥消化池 ································································· - 31 -8.1设计说明······················································································- 31 -8.2设计计算······················································································- 32 - 9浓缩污泥提升泵房 ························································ - 38 -9.1设计选型······················································································- 38 -9.2提升泵房······················································································- 38 -9.3污泥回流泵站··············································································- 38 -10污泥脱水间 ······························································· - 39 -10.1设计说明······················································································- 39 -11鼓风机房 ·································································· - 39 - 12恶臭处理系统 ···························································· - 39 -12.1设计说明······················································································- 39 -12.2设计计算······················································································- 39 -12.3风机选型······················································································- 40 - 第四章污水处理厂总体布置 ····················································· - 41 -1总平面布置 ································································· - 41 -1.1总平面布置原则··········································································- 41 -1.2总平面布置结果··········································································- 41 -2高程布置································································································- 42 -2.1高程布置原则··············································································- 42 - 第五章参考文献 ···································································· - 42 -第一章设计概述1设计任务本次课程设计的主要任务是完成某城市污水厂的A2/O工艺设计处理生活污水，处理水量为20000m3/d，按近期规划人口10万人计算（自定）。
第一章设计内容和任务1、设计题目50000t/d的城市污水处理厂设计。
2、设计目的（1）温习和巩固所学知识、原理；（2）掌握一般水处理构筑物的设计计算。
3、设计要求：（1）独立思考，独立完成；（2）完成主要处理构筑物的设计布置；（3）工艺选择、设备选型、技术参数、性能、详细说明；（4）提交的成品：设计说明书、工艺流程图、高程图、厂区平面布置图。
4、设计步骤：（1）水质、水量（发展需要、丰水期、枯水期、平水期）；（2）地理位置、地质资料调查（气象、水文、气候）；（3）出水要求、达到指标、污水处理后的出路；（4）工艺流程选择，包括：处理构筑物的设计、布置、选型、性能参数。
（5）评价工艺；（6）设计计算；（7）建设工程图（流程图、高程图、厂区布置图）；（8）人员编制，经费概算；（9）施工说明。
5、设计任务（1）、设计进、出水水质及排放标准（2）、排放标准：（GB8978-1996）一级标准；（3）、接受水体：河流（标高：－2m）第二章污水处理工艺流程说明一、气象与水文资料：风向：多年主导风向为东南风；水文：降水量多年平均为每年2370mm；蒸发量多年平均为每年1800mm；地下水水位，地面下6～7m。
年平均水温：20℃二、厂区地形：污水厂选址区域海拔标高在19-21m左右，平均地面标高为20m。
平均地面坡度为0.3‰～0.5‰，地势为西北高，东南低。
厂区征地面积为东西长224m，南北长276m。
三、污水处理工艺流程说明：1、工艺方案分析：本项目污水处理的特点为：①污水以有机污染为主，BOD/COD =0.75,可生化性较好，重金属及其他难以生物降解的有毒有害污染物一般不超标；②污水中主要污染物指标BOD、COD、SS值为典型城市污水值。
针对以上特点，以及出水要求，现有城市污水处理技术的特点，以采用生化处理最为经济。
由于将来可能要求出水回用，处理工艺尚应硝化，考虑到NH3-N出水浓度排放要求较低，不必完全脱氮。
污水处理厂平面及高程设计平面布置及高程布置一、污水处理厂的平面布置污水处理厂的平面布置应包括：处理构筑物的布置污水处理厂的主体是各种处理构筑物。
作平面布置时，要根据各构筑物（及其附属辅助建筑物，如泵房、鼓风机房等）的功能要求和流程的水力要求，结合厂址地形、地质条件，确定它们在平面图上的位置。
在这一工作中，应使：联系各构筑物的管、渠简单而便捷，避免迁回曲折，运行时工人的巡回路线简短和方便；在作高程布置时土方量能基本平衡；并使构筑物避开劣质土壤。
布置应尽量紧凑，缩短管线，以节约用地，但也必须有一定间距，这一间距主要考虑管、渠敷设的要求，施工时地基的相互影响，以及远期发展的可能性。
构筑物之间如需布置管道时，其间距一般可取5-8m，某些有特殊要求的构筑物（如消化池、消化气罐等）的间距则按有关规定确定。
厂内管线的布置污水处理厂中有各种管线，最主要的是联系各处理构筑物的污水、污泥管、渠。
管、渠的布置应使各处理构筑物或各处理单元能独立运行，当某一处理构筑物或某处理单元因故停止运行时，也不致影响其他构筑物的正常运行，若构筑物分期施工，则管、渠在布置上也应满足分期施工的要求；必须敷设接连人厂污水管和出流尾渠的超越管，在不得已情况下可通过此超越管将污水直接排人水体，但有毒废水不得任意排放。
厂内尚有给水管、输电线、空气管、消化气管和蒸气管等。
所有管线的安排，既要有一定的施工位置，又要紧凑，并应尽可能平行布置和不穿越空地，以节约用地。
这些管线都要易于检查和维修。
污水处理厂内应有完善的雨水管道系统，以免积水而影响处理厂的运行。
辅助建筑物的布置辅助建筑物包括泵房、鼓风机房、办公室、集中控制室、化验室、变电所、机修、仓库、食堂等。
它们是污水处理厂设计不可缺少的组成部分。
其建筑面积大小应按具体情况与条件而定。
有可能时，可设立试验车间，以不断研究与改进污水处理方法。
辅助建筑物的位置应根据方便、安全等原则确定。
如鼓风机房应设于曝气池附近以节省管道与动力；变电所宜设于耗电量大的构筑物附近等。
目录引言................................ 错误!未定义书签。
1 设计任务及概况 (4)1。
1设计任务及依据 (4)1.1。
1 设计任务 (4)1.1.2 设计依据及原则 (4)1.1。
3设计范围 (4)1。
2设计水量及水质 (4)1。
2。
1设计水量 (4)1。
2.2设计水质 (4)1。
3.3设计人口 (5)2 工艺设计方案的确定 (5)2.1方案确定的原则 (5)2。
2污水处理工艺流程的确定 (6)2.2。
1厂址及地形资料 (6)2.2。
2气象及水文资料 (6)2.2.3可行性方案的确定 (6)2。
2.4工艺流程方案的确定 (7)2。
2。
5污泥处理工艺流程 (8)2.3主要构筑物的选择 (8)2.3。
1格栅 (8)2.3.2泵房 (9)2。
3.3沉砂池 (9)2.3.4初沉池、二沉池 (9)2。
3。
5曝气池 (10)2.3.6接触池 (10)2。
3.7计量槽 (11)2。
3。
8浓缩池 (11)2.3.9消化池 (11)2.3.10污泥脱水 (11)3污水处理系统工艺设计 (12)3。
1格栅的计算 (12)3.1.1粗格栅 (12)3.1。
2格栅的计算 (12)3.1。
3选型 (14)3。
2泵房 (15)3。
2.1泵房的选择 (15)3.2。
2泵的选择及集水池的计算 (15)3。
2。
3扬程估算 (15)3.3细格栅 (16)3.3。
1细格栅的计算： (16)3.3。
2格栅的计算 (16)3。
3。
3选型 (18)3。
4沉砂池的计算 (18)3.4.1池体计算 (18)3.4。
2沉砂室尺寸计算 (19)3。
4.3排砂 (21)3.4。
4出水水质 (21)3。
5初沉池 (21)3.5.1池体尺寸计算 (21)3.5。
2中心管计算 (23)3。
5.3出水堰的计算 (24)3。
5。
4集配水井计算 (25)3。
5。
5出水水质 (26)3。
5。
6选型 (26)3.6曝气池 (26)3.6.1池体计算 (26)3.6。
污水处理厂选址各构筑物的平面布置原则本节主要讲解污水处理厂厂址选择和工艺流程的确定部分内容。
01、污水厂厂址的选择原则《室外排水设计规范》第6.1.1条规定，污水厂位置的选择，应符合城镇总体规划和排水工程专业规划的要求，并应依据下列因素综合确定：1.在城镇水体的下游；2.便于处理后污水回用和平安排放；3.便于污泥集中处理和污泥处置；4.在城镇夏季主导风向的下风侧；5.有良好的的工程地质条件；6.少拆迁，少占地，依据环境评价要求，有肯定的卫生防护距离；7.有扩建的可能；8.厂区地形不应受洪涝灾难影响，防洪标准不应低于城镇防洪标准，有良好的的排水条件；9.有便利的交通、运输和水电条件。
02、污水厂处理工艺的选择原则《室外排水设计规范》第6.2.1条规定，城镇污水处理程度和方法应依据现行的国家和地方的有关排放标准、污染物来源及性质、排入地表水域环境功能和爱护目标确定。
对于常用的活性污泥法，主要分为以下几类：1.传统活性污泥法及其改进型AAO工艺；2.氧化沟及其改进型工艺；3.SBR法及其改进型工艺；4.AB法及其改进型工艺；5.其他类型，如水解酸化-好氧法等。
对于以上工艺来说，每一种工艺有其相互对应的最适合的使用条件，总结如下：1.大规模污水处理宜采纳传统活性污泥法及其改进型AAO工艺；2.中小规模的污水处理厂，或中小城镇水量、水质变化大，经济水平有限，技术力量相对薄弱时，采纳氧化沟、SBR法及其改进型工艺或者生物滤池工艺是相宜的。
03、污水处理厂的平面布置▲污水厂平面布置图对于污水处理厂的平面布置，《室外排水设计规范》有如下10条规定：1.第6.1.2条规定，污水厂的厂区面积，应按项目总规模掌握，并做出分期建设的支配，合理确定近期规模，近期工程投入运行一年内水量宜达到近期设计规模的60%；2.第6.1.3条规定，污水厂总体布置应依据厂区内各建筑物和构筑物的功能更和流程要求，结合厂址地形、气候条件和地质条件，优化运行成本，便于施工、维护和管理等因素，经技术经济比较确定；3.第6.1.4条规定，污水厂厂区内各建筑物造型应简洁美观，节约材料，选材适当，并应使建筑物和构筑物群体的效果与四周环境协调；4.第6.1.5条规定，生产管理建筑物和生活设施宜集中布置，其位置和朝向应力求合理，并应与处理构筑物保持肯定的距离；5.第6.1.6条规定，污水和污泥的处理构筑物宜依据状况尽可能分别集中布置。
目录引言.............................................................................. 错误!未定义书签。
1 设计任务及概况 (5)1.1设计任务及依据 (5)1.1.1 设计任务 (5)1.1.2 设计依据及原那么 (5)1.1.3设计范围 (6)1.2设计水量及水质 (6)1.2.1设计水量 (6)1.2.2设计水质 (6)1.3.3设计人口 (6)2 工艺设计方案确实定 (7)2.1方案确定的原那么 (7)2.2污水处理工艺流程确实定 (7)2.2.1厂址及地形资料 (7)2.2.2气象及水文资料 (8)2.2.3可行性方案确实定 (8)2.2.4工艺流程方案确实定 (9)2.2.5污泥处理工艺流程 (11)2.3主要构筑物的选择 (11)2.3.1格栅 (11)2.3.2泵房 (12)2.3.3沉砂池 (12)2.3.4初沉池、二沉池 (13)2.3.5曝气池 (13)2.3.6接触池 (14)2.3.7计量槽 (15)2.3.8浓缩池 (15)2.3.9消化池 (15)2.3.10污泥脱水 (16)3污水处理系统工艺设计 (16)3.1格栅的计算 (16)3.1.1粗格栅 (16)3.1.2格栅的计算 (17)3.1.3选型 (20)3.2泵房 (20)3.2.1泵房的选择 (20)3.2.2泵的选择及集水池的计算 (20)3.2.3扬程估算 (21)3.3细格栅 (21)3.3.1细格栅的计算： (21)3.3.2格栅的计算 (22)3.3.3选型 (24)3.4沉砂池的计算 (25)3.4.1池体计算 (25)3.4.2沉砂室尺寸计算 (26)3.4.3排砂 (28)3.4.4出水水质 (29)3.5初沉池 (29)3.5.1池体尺寸计算 (29)3.5.2中心管计算 (32)3.5.3出水堰的计算 (33)3.5.4集配水井计算 (34)3.5.5出水水质 (34)3.5.6选型 (35)3.6曝气池 (35)3.6.1池体计算 (35)3.6.2曝气系统设计与计算 (38)3.6.3供气量 (39)3.6.4空气管道系统计算 (42)3.6.5空压机的选择 (45)3.6.6污泥回流系统 (45)3.7二沉池 (46)3.7.1池体尺寸计算 (46)3.7.2中心管计算 (49)3.7.3出水堰的计算 (50)3.7.4集配水井计算 (50)3.7.5出水水质 (52)3.7.6选型 (52)3.8接触池 (52)3.8.1接触池尺寸计算 (52)3.8.2加氯间 (53)3.9计量槽 (54)4 污泥的处理与处置 (54)4.1污泥浓缩池 (54)4.2污泥消化池 (58)4.2.1 一级消化池池体局部计算 (58)4.2.2 一级消化池池体各局部外表积计算 (60)4.2.3二级消化池 (61)4.3贮气柜 (61)4.4污泥控制室 (62)4.4.1污泥投配泵的选择 (62)4.4.2污泥循环泵 (63)4.4.3污泥控制室布局 (64)4.5脱水机房 (64)4.5.1采用带式压滤机除水 (64)4.5.2选型 (65)4.6事故干化场 (65)4.7压缩机房 (66)5 污水处理厂总体布置 (66)5.1平面布置 (66)5.1.1平面布置的一般原那么 (66)5.1.2 平面布置 (67)5.2污水处理厂高程布置 (67)5.2.1高程布置原那么 (67)5.2.2污水污泥处理系统高程布置 (68)总结 (69)参考文献 (71)致谢.............................................................................. 错误!未定义书签。
