目录
摘要Ⅱ
关键词Ⅱ
AbstractⅢ
引言
引言1
1概述1
1.1项目概况 1
1.2设计依据 1
2尾水水质和水量2
2.1尾水水量的确定2
2.2尾水处理站进出水水质的确定2
3尾水处理工艺的选择3
3.1工艺流程的确定3
3.2构筑物形式的确定4
4尾水构筑物的设计9
4.1加药间9
4.2机械絮凝池10
4．3平流式气浮池11
4．4普通快滤池12
4．5消毒间13
4．6清水池14
5尾水处理站总图布置15
5.1平面布置15
5.2高程布置16
6项目效益分析17
6.1投资费用17
6.2运行费用19
6．3经济效益、社会效益及环境效益20
致谢21
参考文献21
附录A设计计算书
附录B尾水处理站平面布置图
附录C尾水处理站高程布置图
附录D机械絮凝池详图
附录E平流式气浮池详图
附录F普通快滤池详图
附录G清水池详图
某市污水处理厂尾水处理工程设计
摘 要
随着我国经济的日益发展，水资源短缺和用水需求之间的矛盾逐渐扩大，而城市污水作为一种潜在水资源，是解决这类矛盾的有效途径。不过虽然我国城镇建成运行的污水处理厂基数大，但很多污水处理厂的设备及其工艺技术过于老旧和不合理，导致污水处理效果降低，处理能耗提升。如果直接排放，也会带来一系列的环境问题。所以对污水处理厂尾水进行深度处理是十分有必要的。
江苏省南部某市为节约水资源，实现城市污水的资源化利用，拟对中心城区污水处理厂生化处理出水进行再生处理，处理后用于城市道路浇洒、城市绿地灌溉、公共厕所冲洗及机动车辆冲洗等。本次工程设计就是根据该市的总体规划进行尾水处理站的设计。工程设计规模为1.56×104m3/d，使用的原水 *51今日免费论文网|www.51jrft.com +Q: ^351916072* 
为污水处理厂生化处理二级出水。本设计首先是通过方案比选，选择混凝气浮和砂滤作为尾水处理工艺。再根据相关设计参数计算出处理工艺各构筑物的基本尺寸，并对处理工艺各构筑物进行平面和高程布置，绘制出处理站总平面图、高程布置图和构筑物详图。最后对该尾生水处理工程进行初步技术经济预算。
TAILWATER TREATMENT ENGINEERING DESIGN OF SEWAGE TREATMENT PLANT
ABSTRACT
With the increasing development of Chinas economy, the contradiction between the shortage of water resources and the demand for water use has gradually expanded, and urban sewage as a potential water resource is an effective way to resolve such contradictions. However, despite the large number of urban sewage treatment plants in China, many sewage treatment plant equipment and process technology are too old and unreasonable to handle sewage and increase energy consumption. If directly discharged, it will also bring a series of environmental problems. Therefore, tertiary treatment of tail water from sewage treatment plants is very necessary.
In order to save water resources and realize the resource utilization of sewage, a city in southern Jiangsu Province is preparing to regenerate the secondary effluent from the sewage treatment plant in the central urban area. After treatment, it is used for urban road sprinkling, urban green space irrigation, public toilet flushing and motor vehicle flushing. This project design is to carry out the design calculation of the tail water treatment station according to the citys overall plan. The engineering design scale is 1.56 × 104m3 / d, and the raw water is the secondary effluent from the sewage treatment plant. This design is through the comparison and selection of schemes, and coagulation, air floatation and sand filtration are selected as the tail water treatment process. Then calculate the basic size of each structure of the processing process according to the relevant design parameters, and arrange the plane and elevation of each structure of the processing process, draw the total floorplan, elevation chart and Structure map of the processing station. Finally, make a preliminary technical and economic budget for the tail water treatment project.

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