青岛理工大学毕业设计（论文）用纸
摘 要
针对印染废水的水质特点，本文采用水解酸化与接触氧化相结合的生化工艺对废水进行处理。水解酸化和好氧接触设计停留时间均为10h，运行结果表明，水解酸化单元可有效提高废水的可生化性，废水经水解酸化后B／C值可从0．2～0．3提高至0．4左右，有效保证了好氧接触处理效果。根据环保监测结果，COD一般在80mg／L，BOD，在10mg／L以下，COD去除率80％以上，BOD，去除率90％以上。
废水处理厂设计规模 3500m3/d，其现今的设计水质水量为 Q=3500m3/d COD=500～600mg/L BOD5=250mg/L PH=10～11
SS=300 ㎎/l 色度400倍。经处理后，应达到下列出水水质：COD≤100mg/L，BOD≤25mg/L，色度≤40倍，pH在6～9，SS≤70mg/L, 达污水排放一级标准。
经设计可知?COD=88.5%,ηBOD=96%,ηSS=98.6%,色度89.5%。
经技术经济分析，此方案投资总额 430万元，废水处理成本为0.97 元/ m3，有着良好的经济效益和社会效益。且节约用地、提高绿化、降低能耗的理念在设计中得到充分的实践，符合新时代环保的要求。
关键词： 纺织印染废水，水解酸化,生物接触氧化
- 1 -
青岛理工大学毕业设计（论文）用纸
ABSTRACT
Aiming at the characteristics of printing and dyeing wastewater, a biochemical technological process of hydrolytic acidification
integrating contact oxidation was applied to treatment of the printing and dyeing wastewater; the HRT for the both were 10h respectively. The operating results showed the hydrolytic acidification section could improve the biochemical degradability effectively; after hydrolytic acidification, the wastewater＇s B/C value could rise to about 0.4 from 0.2-0.3, effectively ensuring the treating effect of aerobic contact. According to the monitoring results by the department of environmental protection, COD and BOD5 were below 80mg/L and 10mg/L respectively; COD and BOD5removal rates were over 80% and over 90% respectively.
The liquid waste processing factory designs scale3500 m3/d, its raw water fluid matter according to square and present production scale in factory and development request, after with factory square, native environmental protection section consultation certain following design fluid matter amount of water: Q=3500m3/d COD=600mg/L BOD5=250mg/L PH=10～11 SS=300 ㎎/l Color degree400times.
After handles, should attain the following a water fluid matter: COD≤100mg/L，BOD≤25mg/L，Ph=6～9，SS≤70mg/L，Color degree≤40 times，reaching the dirty water exhausts a class standard.
Through design then?COD=88.5%,ηBOD=96%,ηSS=98.6%,color is a 89.5%.Was analyzed by technique economy, this project investment total amount 4，300,000 yuan, liquid waste processing cost is 0.97 yuan/ m3, have got the good and economic performance with social performance.And the economy uses a ground of, increase the green turn, lowering can consume of
- 2 -
青岛理工大学毕业设计（论文）用纸
principle is in design fulfillment getting well, meet the request of the modern.
Key words: textile printing wastewater hydrolytic， acidification reactor，organism contact oxidizes
- 3 -
青岛理工大学毕业设计（论文）用纸
目 录
前言 ???????????????????????????????6 第一章 设计任务书 ????????????????????????7 1.1 设计题目 ???????????????????????????7 1.2 废水的水量及水质情况 ?????????????????????7 1.3 设计依据 ???????????????????????????7 1.4 设计原则 ???????????????????????????7 1.5 设计范围 ???????????????????????????8 第二章 废水的处理方案和工艺流程 ?????????????????9 2.1 废水性质 ???????????????????????????9 2.2 方案确定 ??????????????????????????9 2.3 工艺流程 ???????????????????????????11 2.4 预计处理效果 ?????????????????????????12 第三章 各构筑物的设计与计算????????????????????14 3.1 格栅和筛网 ??????????????????????????14 3.2 调节池 ????????????????????????????16 3.3 水解酸化池 ??????????????????????????20 3.4 生物接触氧化池 ????????????????????????21 3.5 竖流式二沉池 ????????????????????????26 3.6 混凝反应池 ?????????????????????????29 3.7 斜板沉淀池 ??????????????????????????32 第四章 污泥的处理与处置 ?????????????????????36 4.1 污泥浓缩 ???????????????????????????36 4.2 污泥脱水机房 ?????????????????????????37 4.3 污泥管道 ???????????????????????????39 第五章 平面与高程布置???????????????????????40 5.1 平面布置 ???????????????????????????40 5.2 高程布置 ???????????????????????????42
- 4 -
青岛理工大学毕业设计（论文）用纸
第六章 工程项目概预算???????????????????????47 6.1 工程投资概预算 ????????????????????????48 6.2 劳动定员、运行管理 ??????????????????????51 总结 ??????????????????????????????53 参考文献 ????????????????????????????54 致谢 ??????????????????????????????55
- 5 -