印染废水处理毕业论文

分类号：X506 U D C：D10621-273-(2009)0408-0 密 级：公 开 编 号：2005042076

成都信息工程学院

学位论文

印染废水处理工程设计

论文作者姓名： 申请学位专业： 申请学位类别： 指导教师姓名（职称）： 论文提交日期：

杨新琳 环境工程 工学学士 谭显东（副教授） 2009年06月4日

印染废水处理工程设计

摘 要

印染行业是工业废水排放大户，据不完全统计，全国印染废水每天排放量为3×106～4×106m3。印染废水具有有机物含量高、碱度大等特点，属难处理的工业废水。废水的进水水质为CODcr：800mg/L，BOD5：200mg/L，SS：100mg/L，pH：9-10，色度：500倍；出水水质为CODcr：100mg/L，BOD5：25mg/L，SS：70mg/L，pH：6-9，色度：40倍。本次设计采用水解酸化+氧化沟处理方法。废水经水解酸化后能降低后续处理的难度，氧化沟用以降低废水中的CODcr和BOD5。计算出各种处理构筑物的尺寸大小，并进行合理的布局。废水的处理成本为0.74元/m3。

关键词：印染废水；水解酸化；氧化沟；处理

The textile wastewater treatment engineering designs

Abstract

Textile wastewater is a major industrial wastewater discharge. According to incomplete statistics, textile wastewater emissions is 3×106～4×106m3 per day. Textile wastewater’s characteristic are contenting much organic and high alkalinity and so on. The ingoing water quality is CODcr : 800 mg/L , BOD5: 200 mg/L , SS: 100 mg/L , pH: 9-10, chroma: 500 times; the outgoing water quality is CODcr: 100 mg/L , BOD5: 25 mg/L , SS: 70 mg/L , pH: 6-9, chroma: 40 times. I have chosen the hydrolytic acidification and oxidation ditch treatment. The difficulty of follow-up can be reduced after wastewater is hydrolysis and acidification. The oxidation ditch uses to reduce the CODcr and BOD5 in the wastewater. Calculates each kind of processing construction the size dimension, and carries on the reasonable layout. The wastewater processing cost is 0.74 Yuan per m3.

Key words: Textile wastewater; Hydrolytic acidification; Oxidation Ditch;

Treatment

目 录

论文总页数：22页

1 引言 .............................................................................................................................................. 1

1.1 课题背景 ............................................................................................................................ 1 1.2国内外研究现状 ................................................................................................................. 1 1.3 本课题的研究方法 ............................................................................................................ 1 2 设计任务书 ................................................................................................................................... 2

2.1设计内容 ............................................................................................................................. 2 2.2 预计设计成果 .................................................................................................................... 2 2.3 毕业设计的要求 ................................................................................................................ 2 3 工艺流程的选择 ........................................................................................................................... 2

3.1影响流程选择的因素 ......................................................................................................... 2

3.1.1 废水处理程度 ......................................................................................................... 2 3.1.2 建设及运行费用 ..................................................................................................... 2 3.1.3 工程施工难易程度 ................................................................................................. 2 3.1.4 当地的自然条件和社会条件 ................................................................................. 3 3.1.5 废水水量 ................................................................................................................. 3 3.2 印染废水处理设计 ............................................................................................................ 3

3.2.1生物接触氧化—混凝沉淀工艺 .............................................................................. 3 3.2.2 表曝—混凝沉淀处理工艺 ..................................................................................... 3 3.2.3 水解酸化—氧化沟处理工艺 ................................................................................. 3 3.3 选择工艺流程 .................................................................................................................... 4

3.3.1 水解酸化法作用机理 ............................................................................................. 4 3.3.2 奥贝尔氧化沟的特点 ............................................................................................. 4

4 设计要求及参数 ........................................................................................................................... 4

4.1粗格栅和提升泵房 ............................................................................................................. 4

4.1.1 设计参数 ................................................................................................................. 4 4.1.2 运行参数 ................................................................................................................. 5 4.1.3 提升泵房说明 ......................................................................................................... 5 4.2 调节池 ................................................................................................................................ 5

4.2.1 设计参数 ................................................................................................................. 5 4.3 水解酸化池 ........................................................................................................................ 5 4.4 奥贝尔氧化沟 .................................................................................................................... 5 4.5 平流式沉淀池 .................................................................................................................... 6

4.5.1 平流式沉淀池设计的一般规定 ............................................................................. 6 4.5.2 设计参数 ................................................................................................................. 6 4.6 污泥浓缩池 ........................................................................................................................ 6

4.6.1 设计规定及参数 ..................................................................................................... 6 4.6.2 运行参数 ................................................................................................................. 7 4.7 污水厂平面及高程布置 .................................................................................................... 7

4.7.1 平面布置 ................................................................................................................. 7 4.7.2 高程布置 ................................................................................................................. 7

5 设计计算书 ................................................................................................................................... 8