污水管网和污水处理厂的毕业设计给排水论文说明书.docVIP

PAGE   PAGE \* MERGEFORMAT I (此文档为word格式，下载后您可任意编辑修改！) 本科毕业设计说明书 题 目：聊城市冠县污水管网和 污水处理厂的设计 院 （部）：市政与环境工程学院 专 业： 给水排水工程 Ⅴ 摘 要 本次设计为聊城市冠县污水管网和污水处理厂的设计。设计人口密度为360cap of wastewater treatment plant wastewater pipe network for liao cheng city. The population density of this design is 360cap. The whole length of the wastewater pipe network is about46.69 km and the service area of the network is about977.27 showed that the maximal burial depth of the pipe network is 7.88m and the maximal diameter of pipes is DN1300. The reinforced concrete pipes are adopted in this design. The wastewater treatment plant lies in the southeast of liao cheng guan xian. The disposed scale of wastewater treatment plant is 75000 m3d and its area is about 75364 .According to the demand of nitrogen and phosphorus removal, also the quality of the influent and effluent, A-A-O. The treatment process is as follow: Influen Coarse grid → Pumping grid → Grit chamber → Anaerobic pond →A-A-O → Secondary sedimentation tank →tertiary wastewater treatment→ Effluent. The quality of the effluent would reach the standardⅠ-A of the《Discharge standard of pollutants for municipal wastewater treatment plant》(GB18918-2002). Key Words: Wastewater pipe network; Wastewater treatment; A-A-O; nitrogen and phosphrous removal  TOC \o 1-4 \h \z \u  摘 要  PAGEREF _Toc327390751 \h I ABSTRACT  PAGEREF _Toc327390752 \h I 第一章 毕业设计任务及要求  PAGEREF _Toc327390753 \h - 1 - 1.1 毕业设计任务  PAGEREF _Toc327390754 \h - 1 - 1.2 毕业设计原始资料  PAGEREF _Toc327390755 \h - 1 - 第二章 聊城市冠县城区排水管网设计  PAGEREF _Toc327390756 \h - 3 - 2.1 排水管网的规划和布置  PAGEREF _Toc327390757 \h - 3 - 2.1.1 排水管网的规划  PAGEREF _Toc327390758 \h - 3 - 2.1.2 排水管网的布置  PAGEREF _Toc327390759 \h - 3 - 2.1.3 管网定线和敷设  PAGEREF _Toc327390760 \h - 3 - 2.2 排水管网的设计流量计算  PAGEREF _Toc327390761 \h - 5 - 2.2.1 污水总设计流量的确定  PAGEREF _Toc327390762 \h - 5 - 2.2.2 设计管段及各管段的设计流量的确定  PAGEREF _Toc327390763 \h - 5 - 2.3 污水管网的水力计算  PAGEREF _Toc32739