泌阳县城市污水厂工艺设计_毕业设计［精选］.doc

摘要
本次毕业设计的题目为泌阳县城市污水厂工艺设计,主要任务是完成该地区的污水厂设计。
该污水厂的设计规模:30000m3/d,本工程设计进水水质为:BOD5=200mg/L, COD=420mg/L,SS=300mg/L,NH3-N=20mg/L,TN=40mg/L,TP=。根据国家有关规定,二级城市污水处理厂出水应执行《城镇污水处理厂污染物排放标准》(GB18918-2002)一级B标准。则本处理厂出水水质标准为: BOD5≤20mg/L, COD≤60mg/L,SS≤20mg/L,NH3-N≤8mg/L,PO4-P≤1mg/L。
本文根据其进水水质,水量及出水情况,分析比较了各种污水处理工艺,确定了该污水处理厂采用A/A/O工艺,产生的污泥经浓缩,脱水后外运。
主要设计内容为:污水处理工艺选择及各工艺单元的设计:污泥处理工艺设计:污水处理厂的平面及高程布置。
关键词:污水处理 A/A/O工艺构筑物工程设计
Abstract
The graduation design topic for the Miyang sewage treatment plant process design. The main task is plete a the region of the sewage processing design.
Miyang sewage treatment plant the construction scale: 30000 m3/d; The original water: CODCr: 420mg/L, BOD5:200mg/L; SS: 300mg/L; NH3-N: 20mg/L; TN:40mg/L; TP: for handling the water quality to achieve after the country "the urban sewage treatment plant emissions standards (GB18918-2002) level 1B standard requirements: CODCrthan60 mg/L, more than 20mg/L BOD5, SS than 20mg/L, NH3-N than 8mg/L, TP than mg/L.
In this paper, according to the feed water quality, water and water situation, analyses pares the all kinds of wastewater treatment process, determine the sewage treatment plant using the A/A/O process, the sludge produced by the enrichment, sinotrans after dehydration. The main design content includes: choosing the wastewater treatment process and the process of design unit ; The sludge treatment process design, (including process flow and the determination of the monomer structures design); Sewage treatment plants the plane and elevation layout .
KEY WORDS: wastewater Treatment, A/A/O process, construct building,design, engineering

目录
1. 概述 1
项目基本情况 1
设计依据与基础资料 1
设计采用的主要设计规范与标准 1
水质标准 1
勘察、设计规范 1
施工和验收规范 3
主要政策法律 4
设计原则 4
设计范围 5
2. 总体设计及厂址选择 6
6
6
6
6
6
6
7
8
3. 污水处理厂工艺选择 9
污水处理工艺选择原则 9
污水处理工艺比选 9
按空间分割的连续流活性