工业园废水处理工程工艺设计

工业园废水处理工程工艺设计

目录

摘要 (1)

Abstract (1)

引言 (3)

1.项目概况 (6)

1.1 工程自然条件6

1.2 设计依据6

1.3 设计原则7

1.4 主要设计标准和规范7

1.5 设计要求8

2.工业简介及工艺流程的确定 (10)

2.1废水处理工艺概况10

2.2废水处理工艺流程的选择原则11

2.3 工艺流程方案的确定12

2.4 工艺流程简述13

3.污水处理系统工艺设计说明 (14)

3.1 粗格栅间14

3.2 细格栅间14

3.3污水泵房15

3.4 曝气沉砂池15

3.5 缺氧池（生物接触氧化池）16

3.6 好氧池（生物接触氧化池）16

3.7 二沉池17

3.8 鼓风机房17

3.9 污泥脱水间18

4设备选择 (19)

5平面布置原则 (20)

6高程布置原则 (21)

7工艺设计计算 (22)

7.1 粗格栅22

7.2 细格栅25

7.3 曝气沉砂池28

7.4 A/O池（好氧池）31

7.5 A/O池（缺氧池）34

7.6 二沉池37

7.7 高程计算39

7.8 水泵41

7.9 污泥部分42

8.经济概算 (44)

结论 (45)

致谢错误!未定义书签。

参考文献 (46)

本次毕业设计选题是沈阳化学工业园废水处理工程工艺设计，目的旨在解决局部排放的污水对附近河流的影响，保护当地水资源及居民生活用水安全，解决当地经济发展的水体污染问题。

拟建的沈阳沈阳化学工业园废水处理工程位于沈阳西部，设计规模为日处理污水25万吨，污水处理效果、设计排放标准达到国家城市污水处理厂二级排放标准,达标的出水排放到附近河流。

本文通过对该工程进水水质的特点，处理技术等诸多方面的因素分析，选择了除氮效果较好的A/O工艺。通过格栅、提升泵房、曝气沉砂池、A/O池、二沉池等城市污水二级处理工艺，出水可达《国家综合排放标准》二级标准，可作为附近河流重要的补给水源，为城市工艺景观、绿化、建筑用水提供优质水源，部分缓解我市淡水资源匮乏的难题。

本设计对格栅、提升泵房、曝气沉砂池、A/O池、二沉池等构筑物进行了详细的计算，编制设计说明书一份；厂区总平面图、工艺流程图、高程图、生物接触氧化池各一张。

关键词：

城市废水； A/O池；污水处理；污泥浓缩

The graduation projects is the Shenyang Chemical Industry Park wastewater treatment process was designed to address the partial discharge of sewage to nearby streams, protection of local water resources and household water security, to address local economic development, water pollution problems. The proposed Shenyang Shenyang Chemical Industry Park, Shenyang wastewater treatment project is located west of the design on the scale of 250,000 tons of sewage, sewage treatment, up to the national emission standards for the design of urban sewage treatment plants discharge standard, compliance of the effluent discharged into the nearby river . In this paper, the characteristics of the project water quality, treatment technology and many other aspects of the factor analysis, have chosen a better effect than N A / O process. Through the grid, enhance the pumping station, grit chamber, A / O pools, two secondary sedimentation tank and other sewage treatment process, water up to "National Comprehensive Discharge Standard" Grade II, near the river as an important supply water source, urban technology landscape, green, building high-quality water to provide water, some of our city mitigate the problems of scarce freshwater resources. The design of the grille to improve pumping station, grit chamber, A / O tank, secondary sedimentation tank and other structures, a detailed calculation, the preparation of a design