CASS工艺毕业设计环境工程污水处理

CASS工艺毕业设计环境工程污水处理

某工业区污水处理厂设计

姓名金文灿

学号 08031050208

专业环境工程

班级环境2008.2班

指导教师袁基刚

四川理工学院材料与化学工程学院

二〇一二年六月

摘要

水是不可替代的自然资源，在经济建设﹑社会进展和人民生活占有及其重要

的地位。随着经济建设﹑城乡建设的进展和人口的增加，用水连续增长，水的供需矛盾日益突出。由于大量的工业废水和生活污水排入水体，使水环境受到严峻的污染，水资源短缺和水质恶化已成为制约经济建设和城乡进展、破坏生态环境、阻碍人民生活和自身健康的突出问题。

本设计为某工业区污水处理厂工程工艺设计，污水处理厂规模为15000m3/d,污水要紧来源为生活污水和工业污水，要紧采纳氧化沟处理工艺，经比选，此工艺具有投资省，处理成效好，运行治理方便等优点，适宜使用。本设计包含污水处理工艺流程的确定，工艺流程中各单体的运算，施工图纸的绘制等。本工程的实施将显著改善受纳水体水质，同时刻接产生经济效益，促进经济可连续进展，污水处理厂处理后的出水达到《城镇污水处理厂污染物排放标准》GB18918-2002一级B标准。

关键词：污水处理厂，氧化沟工艺，设计

15000m3/d Municipal Wastewater Treatment Plant Design

Abstract

Water is an irreplaceable natural resources, economic development, social development and people's livelihood occupies an important position. As economic construction, construction of urban and rural development and population increase, water continued to grow, increasing water supply and demand contradiction. Due to the large number of industrial waste and domestic sewage discharged into water bodies, is seriously ` the water environment pollution, water shortages and deterioration of water quality has become a restricted economy, destruction of ecological environment construction and urban and rural development, highlight issues affecting people's lives and their own health. Design for engineering design technology of industrial wastewater treatment plant, wastewater treatment plant size for 15000m3/d, major source of sewage for sewage and industrial effluent, mainly by oxidation ditch process technology, by comparison, this process has a low investment, effective, convenient to run management advantages, suitable for use. This determination includes sewage treatment process design, process flow calculation of monomer in, drawing of the construction drawings. Implementation of this project will significantly improve the water quality of receiving waters, and indirect economic benefits, promoting sustainable economic development, effluent from sewage treatment works for

treatment after the meet the discharge standards of pollutants for municipal wastewater treatment plant of GB18918-2002 level b standards.

Keywords: sewage treatment plants , oxidation ditch process, design

名目

第一章总论 (4)

1.1设计内容简介 (5)

1.2 设计的目标 (6)

1.3 设计依据及执行排放标准 (6)

1.4 设计内容 (7)

第二章废水处理方案选择及论证 (7)

2.1 SBR工艺 (7)

2.2 氧化沟工艺 (8)

第三章工艺流程设计及工艺原理说明 (10)

3.1污水处理程度运算 (12)

3.1.1 COD的处理程度 (12)

3.1.2 溶解性BOD5的处理程度 (12)

3.1.3 SS的处理程度 (12)

3.1.4 NH3-N的处理程度 (12)

3.1.5 P 的处理程度 (13)

3.1.6 油的处理程度 (13)

3.2处理方案及工艺流程 (13)

3.2.1污水处理厂的设计规模 (13)

3.2.2 处理方案的确定 (13)

3.2.3 工艺流程如下图 (14)

3.3工艺原理介绍 (14)

3.3.1格栅 (14)

3.3.2水解酸化池 (15)

3.3.3氧化沟 (15)

3.3.4二沉池 (15)

3.3.5接触消毒池 (16)

3.3.6污泥泵房 (18)

3.3.7污泥浓缩池 (18)

3.3.8 储泥池 (19)

3.3.9脱水机房 (19)

第四章污水处理构筑物设计运算 (20)

4.1格栅 (20)

4.1.1 格栅的作用及种类 (20)

4.1.2格栅的设计原则 (20)

4.1.3设计参数运算 (20)

4.2 水解酸化沉淀池的运算 (24)