污水处理厂毕业设计说明书.doc

摘要
本次毕业设计的题目为胶南第二污水处理厂工艺设计。主要任务是完成个该地区污水的处理设计。
胶南第二污水处理厂的建设规模:60000m3/d;原水水质:COD
: 600mg/L,
Cr
BOD5: 300mg/L;SS: 450mg/L;NH3-N: 45mg/L;TN: 55mg/L;TP:7mg/L;pH:
6-9 要求处理后水质达到国家《城镇污水处理厂污染物排放标准》(GB18918-2002) 一级 A 标准的要求:CODCr≤50mg/L,BOD5 ≤10mg/L,SS≤10mg/L,NH3-N≤5mg/L, TP≤。
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,确定该污水处理厂采用倒置的 A/A/O 工艺,产生的污泥经浓缩、脱水后外运。
主要设计内容包括:污水处理工艺选择及各工艺单元的设计(包括工艺流程的确定及各单体构筑物的设计);污泥处理工艺设计,(包括工艺流程的确定及各单体构筑物的设计);污水处理厂的平面及高程布置(包括污水处理厂处理构筑物和辅助构筑物的平面图及高程图的绘制)。
关键词:污水处理,倒置 A/A/O 工艺,构筑物,工程,设计
ABSTRACT
The graduation design topic for the second jiaonan sewage treatment plant process design. The main task is plete a the region of the sewage processing design.
Jiaonan second sewage treatment plant the construction scale: 60000 m3/d; The original water: CODCr: 600mg/L, BOD5:300mg/L; SS: 450mg/L; NH3-N: 45mg/L; TN:55mg/L; TP:7mg/L; pH:6-9 for handling the water quality to achieve after the country "the urban sewage treatment plant emissions standards (GB18918-2002) level 1A standard requirements: CODCr than 50 mg/L, more than 10mg/L BOD5, SS than 10mg/L, NH3-N than 5mg/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 (including process flow and the determination of the monomer structures design); The sludge treatment process design, (including process flow and the determination of the monomer structures design); Sewage treatment plants the plane and elevation layout (including sewage treatment plant structures and auxiliary structures plan and elevation drawing).
KEY WORDS: wastewater Treatment, reversed A/A/O process, construct building,design, engineering
目录
摘要 I
ABSTRACT II
前言 1
1 设计任务 3
主要内容及