摘要
本设计为某啤酒废水处理设计。啤酒废水水质的主要特点是含有大量的有机物，属高浓度有机废水，故其生化需氧量也较大。该啤酒废水处理厂的处理水量为8000 m3/d,不考虑远期发展。原污水中各项指标为：BOD浓度为1100 mg/L，COD浓度为2100 mg/L，SS浓度为310 mg/L。因该废水BOD值较大,不经处理会对环境造成巨大污染，故要求处理后的排放水要严格达到国家二级排放标准，即：BOD ≤ 20 mg/L，COD ≤ 100 mg/L ，SS ≤ 70mg/L 。
本文分析了啤酒生产中废水产生的环节，污染物及主要污染来源，并从好氧、厌氧生物处理两方面来考虑了废水治理工艺，提出了UASB+CASS的组合工艺流程。
本设计工艺流程为：
啤酒废水→格栅→污水提升泵房→调节池→UASB反应器→CASS
池→出水
本设计流程简单、构筑物较少，处理效果较好，且成本低、占地面积小，适合于大中型啤酒厂废水处理。
关键词啤酒废水 UASB CASS
Abstract
The degree of the design is in a preliminary phase. The main distinguishing
feature of the beer waste water is that it contains the massive organic matters, so
it belongs to the high concentration organic waste water, therefore its
biochemical oxygen demand is also high.
The water which needs to treatment in the beer waste water treatment plant m/3. Various target in the raw waste water is: the concentration of is 2000d
BOD is 1100 mg/L , the concentration of COD is 2100 mg/L , the concentration
of SS is 310 mg/L . For the beer waste water's BOD is high, it could pollute the
environment if drained before treatment, so it request the beer waste water which
drained must be strictly treated to the two effluence standard in the country,
which is as following: BOD ≤20 mg/L , COD ≤100 mg/L , SS ≤70
mg/L .
This paper analyzes the generation processes of wastewater, the major
contaminats and their major sources in beer production. It also introduces the
primary biological processing techniques of aerobic and anaerobic treatment.
According to the product scale of beer brewery, the main standard of draining
water\natural materials, and so on, the main process technology of the beer waste
water disposal station is defined as UASB + CASS .
The technological process of this design is:
Beer waste water →Screens →The sewage lift pump house →
Regulates tank →Reaction tank of UASB →Tank of CASS →Treatment
water
The advantage of the design is that the process is simple and the sorts of
buildings are few. What’s more,it has better treatment and less cost. So it is
suitable for big and medium-sized wastewater treatment plants.
Keywords beer waste water UASB CASS
目录
摘要........................................................... I Abstract ...................................................... II 目录........................................................ III 第1章绪论. (6)
1.1课题背景 (6)
1.1.1 啤酒废水特点 (6)
1.1.2 啤酒废水危害 (6)
1.1.3 啤酒废水处理意义 (6)
1.2啤酒废水的处理工艺 (7)
1.3课题国内外现状 (8)
1.3.1研究主要成果 (8)
1.3.2发展趋势： (9)
1.3.3存在问题 (10)
1.4本设计的研究内容 (10)
第2章啤酒废水处理工艺设计 (11)
2.1废水生物处理工艺选择原则 (11)
2.2处理技术的提出及选择 (12)
2.2.1 方案一水解酸化-好氧技术 (12)
2.2.2 方案二UASB反应器-好氧技术 (12)
2.3好氧工艺的选择 (13)
2.4工艺流程说明 (14)
本章小结 (15)
第3章处理构筑物的设计计算 (16)
3.1格栅 (16)
3.1.1 设计参数 (16)
3.1.2 设计计算 (16)
3.1.3格栅选型 (18)
