南京师范大学学士学位论文
南 京 师 范 大 学
毕 业 设 计（论 文）
题 目：学 院：专 业：姓 名：学 号：指导教师：（ 2011 届）
2000m3
/d印染废水处理工程设计
南京师范大学教务处 制
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2000m3/d印染废水处理工程设计
目录
前言 ............................................................. 6 第1章 文献综述 .................................................. 7
第1.1节 印染废水概述 ...................................................................................................................... 7
1.1.1 印染废水的来源 .................................................................................................................. 7 1.1.2 印染废水的主要污染物 ...................................................................................................... 8 1.1.3 印染废水分类 ...................................................................................................................... 8 1.1.4 印染废水的特点 .................................................................................................................. 9 第1.2节 印染废水的处理方法 ........................................................................................................ 10
1.2.1 印染废水的物理化学处理法 ................................................................................................ 10 1.2.2 印染废水处理的生物法 ........................................................................................................ 12 1.2.3 印染废水处理的化学法 ........................................................................................................ 12 1.2.4 我国印染废水生物处理工艺方案的特点及比较 ............................................................ 13 第1.3节 本课题的研究目的与意义 ...................................................................................................... 14
第2章 设计说明 ................................................. 15
第2．1节 设计任务 ................................................................................................................................ 15
第2.2节 设计规模和设计范围 ............................................................................................................ 15 第2.3节 设计原则 .................................................................................................................................. 15 第2.4节 工艺流程的选择及说明 .......................................................................................................... 16
2.4.1 工艺流程的选择 .................................................................................................................... 16 2.4.2 工艺流程说明 ........................................................................................................................ 17 第2.5节 处理方案论证 .......................................................................................................................... 17
第3章 设计计算 ................................................. 19
第3.1节 主要构筑物设计计算 ........................................................................................................ 19
3.1.1 格栅 .................................................................................................................................... 19 3.1.2 调节池 ................................................................................................................................ 21 3.1.3 水解酸化池 ........................................................................................................................ 23 3.1.4 生物接触氧化池 ................................................................................................................ 24 3.1.5 二沉池 ................................................................................................................................ 26 3.1.6 混凝反应池 ........................................................................................................................ 28 3.1.7 污泥浓缩池 ........................................................................................................................ 32 第3.2节 辅助构筑物的设计计算及说明 .............................................................................................. 34 第3.3节 附属构筑物设计说明 ............................................................................................................ 35
第4章 运行说明、设备选型及经济技术分析 ......................... 37
第4.1节 运行说明 .................................................................................................................................. 37
第4.2节 设备选型及管道规格 .............................................................................................................. 39 第4.3节 设计预算及经济技术分析 ...................................................................................................... 41
4.3.1 主要构筑物 ............................................................................................................................ 41 4.3.2 印染废水处理站平面设计 .................................................................................................... 42
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南京师范大学学士学位论文
4.3.3 印染废水处理站高程设计 .................................................................................................... 42 4.3.4 设计预算 ................................................................................................................................ 43
参考文献 ........................................................ 45 致 谢 ........................................................... 46 英文文献 ........................................................ 47 中文翻译 ........................................................ 50
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2000m3/d印染废水处理工程设计
摘要
本设计为2000m3/d的印染废水处理工艺，它的进水水质为:BOD5：312mg/L;CODcr：1200mg/L;SS：15mg/L; pH：8。出水水质为达到《纺织染整工业水污染排放标准》（GB4287-92）中的Ⅰ级标准。经过对现阶段的各种印染废水处理工艺的综合比较和研究，对于本设计的印染废水，适合采用混凝沉淀—生物接触氧化—氧化脱色工艺，因为它的容积负荷高，出水水质好，微生物浓度高，污泥产量少，且不需要进行污泥回流。本设计共有四个部分，第一部分是文献综述，介绍国内外印染废水处理现状；第二部分是设计说明，经过方案比较论证确定水解酸化—生物接触氧化—混凝沉淀法为处理该印染废水的最佳方案，并对工艺流程进行了详细的说明；第三部分对工艺流程中的主要构筑物及其辅助构筑物进行设计计算；第四部分对该方案的运行说明和相应设备的选型及方案的技术经济分析。本印染废水处理工程方案的设计，不仅能高效地去除BOD5和CODcr，而且对废水有较好的脱色效果，从而最大限度的减少了对环境的污染。经处理后水中的BOD5、CODcr、SS的浓度均能达到排放标准。
关键词：印染废水；处理设计；生物接触氧化；混凝沉淀
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南京师范大学学士学位论文
Abstract
The design intends to dispose printing and dyeing sewage production with the normal quantity of water of 2000m3/d. BOD5:312mg/L;CODcr:1200mg/L;SS:15mg/L;pH:8. The quality of the discharge water reaches the demand of the discharge standard of levelⅠin \weaving Dyes the Entire Industry Water pollution To discharge Standard\(GB4287-92). Comparing to other biological and chemical methods, regarding the design of printing and dyeing sewage,Hydrolysis and acidification—biology catalytic oxidation—the craft of coagulation to precipitate is suit to the design. Because its volume shoulders high, the quality of the water is good, microorganism density is high, the sludge output are few, also does not need to carry on the sludge backflow. This design includes four parts .The first part is the literature summarizes, briefs the domestic and foreign processing situation of printing and dyeing sewage; The second part is the design explanation, determines that Hydrolysis and acidification—biology catalytic oxidation—the craft of coagulation to precipitate is the best plan to this design of printing and dyeing sewage processing after comparing to other plans, and makes detailed explanation to the technical process; The third part is to caculate the main constructions and it’s auxiliary constructions; And the last part is the operating explanation to this plan and to choose the primary facilities and to analyse the technology economic of this plan. This design of printing and dyeing sewage processing project, not only can highly effective remove BOD5 (reaches 96%) and CODcr (reaches 91%), moreover it has good decolorization effect to printing and dyeing sewage (reaches 88%), thus it has maximum limit reduction to environment pollution. By the whole system, it can reach the demand of the discharge standard of GB4287-92.
Key words: printing and dyeing sewage; disposal design; biological contact oxidation; the
craft of coagulation to precipitate
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