工艺万方污水处理厂毕业设计说明书全套C图纸
污水处理厂毕业设计说明书完整版可做毕业设计模版
给水排水工程专业毕业设计任务书设计题目：朔州市恢河污水处理厂设计学生：李文鹃指导教师：杨纪伟完成日期：2006年2月日---2006年6月日河北工程大学城建学院给水排水教研室2006年2月一、设计题目：朔州市恢河污水处理厂设计二、设计（研究）内容和要求：（包括设计或研究内容、主要指标与技术参数，并根据课题性质对学生提出具体要求）根据朔州市城市总体规划图和所给的设计资料进行城市污水处理厂7设计。
设计内容如下：1、完成一套完整的设计计算说明书。
说明书应包括：污水水量的计算；设计方案对比论证；污水、污泥、中水处理工艺流程确定；污水、污泥、中水处理单元构筑物的详细设计计算，（包括设计流量计算、参数选择、计算过程等，并配相应的单线计算草图），厂区总平面布置说明；污水厂环境保护方案；污水处理工程建设的技术经济初步分析等。
2、绘制图纸不得少于8张，所有图纸按2#图出。
（个别图纸也可画成1#图）。
此外，其组成还应满足下列要求：（1）污水处理工艺及污水回用总平面布置图1张，包括处理构筑物、附属构筑物、配水、集水构筑物、污水污泥管渠、回流管渠、放空管、超越管渠、空气管路、厂内给水、污水管线、中水管线、道路、绿化、图例、构筑物一览表、说明等。
（2）污水处理厂污水和污泥及污水回用工程高程布置图1张，即污水、污泥、中水处理高程纵剖面图，包括构筑物标高、水面标高、地面标高、构筑物名称等。
（3）污水总泵站或中途泵站工艺施工图1张。
（4）污水处理及污泥处理工艺中两个单项构筑物施工平面图和剖面图及部分大样图3~4张。
（5）污水回用工程中主要单体构筑物工艺施工图1~2张。
3、完成相关的外文文献翻译1篇（不少于5000汉字）。
外文资料的选择在教师指导下进行，严禁抄袭有中文译文的外文资料。
4、按照学校要求完成毕业设计文件。
三、设计原始资料：（一）排水体制：完全分流制（二）污水量1、城市设计人口27万人，居住建筑内设有室内给排水卫生设备和淋浴设备。
水污染课程设计----污水处理厂AAO工艺设计(含全套图纸)
《水污染控制工程》课程设计学院：专业：XX：学号：指导老师：目录引言41设计任务及设计资料5 1.1设计任务与内容51.2设计原始资料51.2.1城市气象资料51.2.2地质资料51.2.3设计规模51.2.4进出水水质62、设计说明书6 2.1去除率的计算62.1.1溶解性BOD的去除率65的去除率：72.1.2 CODr2.1.3.SS的去除率：72.1.4.总氮的去除率：72.1.5.磷酸盐的去除率82.2城市污水处理工艺选择82.3、污水厂总平面图的布置92.4、处理构筑物设计流量(二级)92.5、污水处理构筑物设计92.5.1.中格栅和提升泵房（两者合建在一起）9 2.5.2、沉沙池102.5.3、厌氧池112.5.4、缺氧池112.5.5、好氧曝气池112.5.6、二沉池122.6、污泥处理构筑物的设计计算122.6.1污泥泵房122.6.2污泥浓缩池122.7、污水厂平面，高程布置132.7.1平面布置132.7.2管线布置132.7.3 高程布置143 污水厂设计计算书14 3.1污水处理构筑物设计计算143.1.1泵前中格栅143.1.2污水提升泵房163.1.3、泵后细格栅173.1.3、沉砂池183.1.4、厌氧池203.1.5、缺氧池计算203.1.6、好氧曝气池的设计计算213.1.8、二沉池283.2 污泥处理部分构筑物计算313.2.1污泥浓缩池设计计算：313.3、高程计算363.3.1污水处理部分高程计算:363.3.2高程图见CAD图363.3.3污水处理厂工艺流程图与总平面布置图36参考文献37XX市污水处理厂A/A/O工艺设计作者：闫赛红，指导教师：孙丰霞（XX农业大学资源与环境学院）【摘要】随着社会进步，人们对于城市污水的处理的要求愈加严格。
除了基本的去除污水中BOD和SS的要求外，通常还要求脱氮除磷，以保护水体环境。
本设计即采用了众多脱氮除磷工艺中较为经济合理的AAO工艺对进入污水厂的污水进行处理。
某污水处理厂毕业设计说明书完整版可做毕业设计模版)
给水排水工程专业毕业设计任务书设计题目：朔州市恢河污水处理厂设计学生：李文鹃指导教师：杨纪伟完成日期：2006年2月日---2006年6月日河北工程大学城建学院给水排水教研室2006年2月一、设计题目：朔州市恢河污水处理厂设计二、设计（研究）内容和要求：（包括设计或研究内容、主要指标与技术参数，并根据课题性质对学生提出具体要求）根据朔州市城市总体规划图和所给的设计资料进行城市污水处理厂7设计。
设计内容如下：1、完成一套完整的设计计算说明书。
说明书应包括：污水水量的计算；设计方案对比论证；污水、污泥、中水处理工艺流程确定；污水、污泥、中水处理单元构筑物的详细设计计算，（包括设计流量计算、参数选择、计算过程等，并配相应的单线计算草图），厂区总平面布置说明；污水厂环境保护方案；污水处理工程建设的技术经济初步分析等。
2、绘制图纸不得少于8张，所有图纸按2#图出。
（个别图纸也可画成1#图）。
此外，其组成还应满足下列要求：（1）污水处理工艺及污水回用总平面布置图1张，包括处理构筑物、附属构筑物、配水、集水构筑物、污水污泥管渠、回流管渠、放空管、超越管渠、空气管路、厂内给水、污水管线、中水管线、道路、绿化、图例、构筑物一览表、说明等。
（2）污水处理厂污水和污泥及污水回用工程高程布置图1张，即污水、污泥、中水处理高程纵剖面图，包括构筑物标高、水面标高、地面标高、构筑物名称等。
（3）污水总泵站或中途泵站工艺施工图1张。
（4）污水处理及污泥处理工艺中两个单项构筑物施工平面图和剖面图及部分大样图3~4张。
（5）污水回用工程中主要单体构筑物工艺施工图1~2张。
3、完成相关的外文文献翻译1篇（不少于5000汉字）。
外文资料的选择在教师指导下进行，严禁抄袭有中文译文的外文资料。
4、按照学校要求完成毕业设计文件。
三、设计原始资料：（一）排水体制：完全分流制（二）污水量1、城市设计人口27万人，居住建筑内设有室内给排水卫生设备和淋浴设备。
污水处理厂工艺流程设计图
20000m3d城市污水处理厂综合设计(含11个CAD作图图纸)--优秀毕业设计{修}
本设计污水处理厂综合设计包括15个图纸，十分全面，具体详见报告后附图。
本报告附图全面详细。
图纸内容如下：A2O池，初沉池，幅流式二沉池，隔栅，工艺简单图，工艺流程图（高程图），回转耙式格栅除污机图，平面布置图，污泥浓缩池，厌氧消化池，钟式沉砂池等。
全为CAD制图。
下载后复制放大或打印可看清！题目20000m3/d城市污水处理厂综合设计专业: 环境工程年级: 2005级学号: 3105001286姓名: 莫笑伟指导教师:2008年12 月摘要我国水体污染主要来自两方面，一是工业发展超标排放工业废水，二是城市化中由于城市污水排放和集中处理设施严重缺乏，大量生活污水未经处理直接进入水体造成环境污染。
工业废水近年来经过治理虽有所减少，但城市生活污水有增无减，占水质污染的51%以上。
我国水体污染主要来自两方面，一是工业发展超标排放工业废水，二是城市化中由于城市污水排放和集中处理设施严重缺乏，大量生活污水未经处理直接进入水体造成环境污染。
工业废水近年来经过治理虽有所减少，但城市生活污水有增无减，占水质污染的51%以上。
本设计要求处理水量为20000m3/d的城市生活污水，设计方案针对已运行稳定有效的A2/O活性污泥法工艺处理城市生活污水。
A2O工艺由于不同环境条件，不同功能的微）能生物群落的有机配合，加之厌氧、缺氧条件下，部分不可生物降解的有机物（CODNB被开环或断链，使得N、P、有机碳被同时去除，并提高对COD的去除效果。
它可以同NB－－时完成有机物的去除，硝化脱氮、磷的过量摄取而被去除等功能，脱氮的前提是NH3N应完全硝化，好氧池能完成这一功能，缺氧池则完成脱氮功能。
厌氧池和好氧池联合完成除磷功能。
关键词：城市生活污水，活性污泥，A2/O目录摘要 (III)目录 (IV)第一章设计概述 ······································································- 7 -1设计任务 ······································································- 7 - 2设计原则 ······································································- 7 - 3设计依据 ······································································- 8 - 第二章工艺流程及说明 ·····························································- 8 -1工艺方案分析 ································································- 8 - 2工艺流程 ······································································- 9 - 3流程各结构介绍 ·····························································- 9 -3.1格栅······························································································· - 9 -3.2沉砂池··························································································- 10 -3.3初沉池··························································································- 10 -3.4生物化反应池··············································································- 10 -3.5二沉池··························································································- 12 -3.6浓缩池··························································································- 12 - 第三章构筑物设计计算 ··························································· - 12 -1格栅 ·········································································· - 12 -1.1设计说明······················································································- 12 -1.2设计计算······················································································- 13 -2沉砂池 ······································································· - 16 -2.1设计说明······················································································- 16 - 3初沉池 ······································································· - 17 -3.1设计说明······················································································- 17 -3.2设计计算······················································································- 17 - 4生化池 ······································································· - 19 -4.1设计说明······················································································- 19 -4.2设计计算······················································································- 19 - 5二沉池 ······································································· - 26 -5.1设计说明······················································································- 26 -5.2设计计算······················································································- 26 - 6液氯消毒 ···································································· - 29 -6.1设计说明······················································································- 29 -6.2设计计算······················································································- 29 - 7污泥浓缩池 ································································· - 30 -7.1设计说明······················································································- 30 -7.2设计计算······················································································- 30 -8 污泥消化池 ································································· - 31 -8.1设计说明······················································································- 31 -8.2设计计算······················································································- 32 - 9浓缩污泥提升泵房 ························································ - 38 -9.1设计选型······················································································- 38 -9.2提升泵房······················································································- 38 -9.3污泥回流泵站··············································································- 38 -10污泥脱水间 ······························································· - 39 -10.1设计说明······················································································- 39 -11鼓风机房 ·································································· - 39 - 12恶臭处理系统 ···························································· - 39 -12.1设计说明······················································································- 39 -12.2设计计算······················································································- 39 -12.3风机选型······················································································- 40 - 第四章污水处理厂总体布置 ····················································· - 41 -1总平面布置 ································································· - 41 -1.1总平面布置原则··········································································- 41 -1.2总平面布置结果··········································································- 41 -2高程布置································································································- 42 -2.1高程布置原则··············································································- 42 - 第五章参考文献 ···································································· - 42 -第一章设计概述1设计任务本次课程设计的主要任务是完成某城市污水厂的A2/O工艺设计处理生活污水，处理水量为20000m3/d，按近期规划人口10万人计算（自定）。
20000m3d城市污水处理厂综合设计(含11个CAD作图图纸)--优秀毕业设计
本设计污水处理厂综合设计包括15个图纸，十分全面，具体详见报告后附图。
本报告附图全面详细。
图纸内容如下：A2O池，初沉池，幅流式二沉池，隔栅，工艺简单图，工艺流程图（高程图），回转耙式格栅除污机图，平面布置图，污泥浓缩池，厌氧消化池，钟式沉砂池等。
全为CAD制图。
下载后复制放大或打印可看清！题目20000m3/d城市污水处理厂综合设计专业: 环境工程年级: 2005级学号: 3105001286姓名: 莫笑伟指导教师:2008年12 月摘要我国水体污染主要来自两方面，一是工业发展超标排放工业废水，二是城市化中由于城市污水排放和集中处理设施严重缺乏，大量生活污水未经处理直接进入水体造成环境污染。
工业废水近年来经过治理虽有所减少，但城市生活污水有增无减，占水质污染的51%以上。
我国水体污染主要来自两方面，一是工业发展超标排放工业废水，二是城市化中由于城市污水排放和集中处理设施严重缺乏，大量生活污水未经处理直接进入水体造成环境污染。
工业废水近年来经过治理虽有所减少，但城市生活污水有增无减，占水质污染的51%以上。
本设计要求处理水量为20000m3/d的城市生活污水，设计方案针对已运行稳定有效的A2/O活性污泥法工艺处理城市生活污水。
A2O工艺由于不同环境条件，不同功能的微）能生物群落的有机配合，加之厌氧、缺氧条件下，部分不可生物降解的有机物（CODNB被开环或断链，使得N、P、有机碳被同时去除，并提高对COD的去除效果。
它可以同NB－－时完成有机物的去除，硝化脱氮、磷的过量摄取而被去除等功能，脱氮的前提是NH3N应完全硝化，好氧池能完成这一功能，缺氧池则完成脱氮功能。
厌氧池和好氧池联合完成除磷功能。
关键词：城市生活污水，活性污泥，A2/O目录摘要 (III)目录 (IV)第一章设计概述 ······································································- 7 -1设计任务 ······································································- 7 - 2设计原则 ······································································- 7 - 3设计依据 ······································································- 8 - 第二章工艺流程及说明 ·····························································- 8 -1工艺方案分析 ································································- 8 - 2工艺流程 ······································································- 9 - 3流程各结构介绍 ·····························································- 9 -3.1格栅······························································································· - 9 -3.2沉砂池··························································································- 10 -3.3初沉池··························································································- 10 -3.4生物化反应池··············································································- 10 -3.5二沉池··························································································- 12 -3.6浓缩池··························································································- 12 - 第三章构筑物设计计算 ··························································· - 12 -1格栅 ·········································································· - 12 -1.1设计说明······················································································- 12 -1.2设计计算······················································································- 13 -2沉砂池 ······································································· - 16 -2.1设计说明······················································································- 16 - 3初沉池 ······································································· - 17 -3.1设计说明······················································································- 17 -3.2设计计算······················································································- 17 - 4生化池 ······································································· - 19 -4.1设计说明······················································································- 19 -4.2设计计算······················································································- 19 - 5二沉池 ······································································· - 26 -5.1设计说明······················································································- 26 -5.2设计计算······················································································- 26 - 6液氯消毒 ···································································· - 29 -6.1设计说明······················································································- 29 -6.2设计计算······················································································- 29 - 7污泥浓缩池 ································································· - 30 -7.1设计说明······················································································- 30 -7.2设计计算······················································································- 30 -8 污泥消化池 ································································· - 31 -8.1设计说明······················································································- 31 -8.2设计计算······················································································- 32 - 9浓缩污泥提升泵房 ························································ - 38 -9.1设计选型······················································································- 38 -9.2提升泵房······················································································- 38 -9.3污泥回流泵站··············································································- 38 -10污泥脱水间 ······························································· - 39 -10.1设计说明······················································································- 39 -11鼓风机房 ·································································· - 39 - 12恶臭处理系统 ···························································· - 39 -12.1设计说明······················································································- 39 -12.2设计计算······················································································- 39 -12.3风机选型······················································································- 40 - 第四章污水处理厂总体布置 ····················································· - 41 -1总平面布置 ································································· - 41 -1.1总平面布置原则··········································································- 41 -1.2总平面布置结果··········································································- 41 -2高程布置································································································- 42 -2.1高程布置原则··············································································- 42 - 第五章参考文献 ···································································· - 42 -第一章设计概述1设计任务本次课程设计的主要任务是完成某城市污水厂的A2/O工艺设计处理生活污水，处理水量为20000m3/d，按近期规划人口10万人计算（自定）。
某城市污水处理厂毕业设计 完整版含图纸25页
水污染控制工程课程设计题目：某城镇二级污水处理厂设计指导老师：设计人：班级：时间：设计任务书一、课程设计的目的本课程设计是水污染控制工程教学中的一个重要实践环节，要求综合运用所学的有关知识，掌握解决实际工程问题的能力，并进一步巩固和提高理论知识。
1复习和消化所学课程内容，初步理论联系实际，培养分析问题和解决问题的能力。
2了解并掌握污水处理工程设计的基本方法、步骤和技术资料的运用；3训练和培养污水处理的基本计算方法及绘图的基本技能；4提高综合运用所学理论知识独立分析和解决问题的能力；5了解国家环境保护和基本建设等方面的政策措施。
二、课程设计的任务根据已知资料，确定城市污水处理厂的工艺流程，计算各处理构筑物的尺寸，绘制污水处理厂的总平面布置图和高程布置图，并附详细的设计说明书和计算书。
三、设计内容及要求1 设计说明书：说明城市概况、设计任务、工程规模、水质水量、工艺流程、设计参数、主要构筑物的尺寸和个数、主要设备和辅助设备的型号和数量、处理构筑物平面布置及高程计算、参考资料；说明书应简明扼要，力求多用草图、表格说明，要求文字通顺、段落分明、字迹工整。
2 设计计算书：各构筑物的计算、主要设备（如水泵、鼓风机等）的选取、污水处理厂的高程计算等（各构筑物内部的水头损失查阅课本或手册，构筑物之间的水头损失按管道长度计算）；3 设计图纸：污水处理厂总平面布置图和高程布置图各一张。
总平面布置图中应表示各构筑物的确切位置、外形尺寸、相互距离；各构筑物之间的连接管道及场区内各种管道的平面位置、管径、长度、坡度；其它辅助建筑物的位置、厂区道路、绿化布置等；污水污泥处理高程中标出各种构筑物的顶、底、水面以及重要构件的设计标高、地面标高等。
四、设计资料1 城市概况——江南某城镇位于长江冲击平原，占地约6.3 km2，呈椭圆形状，最宽处为2.4 km ，最长处为2.9 km 。
2 自然特征——该镇地形由南向北略有坡度，平均坡度为0.5 ‰，地面平整，海拔高度为黄海绝对标高3.9～5 .0 m，地坪平均绝对标高为4.80 m。
20000m3d城市污水处理厂综合设计(含11个CAD作图图纸)--优秀毕业设计{修}
本设计污水处理厂综合设计包括15个图纸，十分全面，具体详见报告后附图。
本报告附图全面详细。
图纸内容如下：A2O池，初沉池，幅流式二沉池，隔栅，工艺简单图，工艺流程图（高程图），回转耙式格栅除污机图，平面布置图，污泥浓缩池，厌氧消化池，钟式沉砂池等。
全为CAD制图。
下载后复制放大或打印可看清！题目20000m3/d城市污水处理厂综合设计专业: 环境工程年级: 2005级学号: 3105001286姓名: 莫笑伟指导教师:2008年12 月摘要我国水体污染主要来自两方面，一是工业发展超标排放工业废水，二是城市化中由于城市污水排放和集中处理设施严重缺乏，大量生活污水未经处理直接进入水体造成环境污染。
工业废水近年来经过治理虽有所减少，但城市生活污水有增无减，占水质污染的51%以上。
我国水体污染主要来自两方面，一是工业发展超标排放工业废水，二是城市化中由于城市污水排放和集中处理设施严重缺乏，大量生活污水未经处理直接进入水体造成环境污染。
工业废水近年来经过治理虽有所减少，但城市生活污水有增无减，占水质污染的51%以上。
本设计要求处理水量为20000m3/d的城市生活污水，设计方案针对已运行稳定有效的A2/O活性污泥法工艺处理城市生活污水。
A2O工艺由于不同环境条件，不同功能的微）能生物群落的有机配合，加之厌氧、缺氧条件下，部分不可生物降解的有机物（CODNB被开环或断链，使得N、P、有机碳被同时去除，并提高对COD的去除效果。
它可以同NB－－时完成有机物的去除，硝化脱氮、磷的过量摄取而被去除等功能，脱氮的前提是NH3N应完全硝化，好氧池能完成这一功能，缺氧池则完成脱氮功能。
厌氧池和好氧池联合完成除磷功能。
关键词：城市生活污水，活性污泥，A2/O目录摘要 (III)目录 (IV)第一章设计概述 ······································································- 7 -1设计任务 ······································································- 7 - 2设计原则 ······································································- 7 - 3设计依据 ······································································- 8 - 第二章工艺流程及说明 ·····························································- 8 -1工艺方案分析 ································································- 8 - 2工艺流程 ······································································- 9 - 3流程各结构介绍 ·····························································- 9 -3.1格栅······························································································· - 9 -3.2沉砂池··························································································- 10 -3.3初沉池··························································································- 10 -3.4生物化反应池··············································································- 10 -3.5二沉池··························································································- 12 -3.6浓缩池··························································································- 12 - 第三章构筑物设计计算 ··························································· - 12 -1格栅 ·········································································· - 12 -1.1设计说明······················································································- 12 -1.2设计计算······················································································- 13 -2沉砂池 ······································································· - 16 -2.1设计说明······················································································- 16 - 3初沉池 ······································································· - 17 -3.1设计说明······················································································- 17 -3.2设计计算······················································································- 17 - 4生化池 ······································································· - 19 -4.1设计说明······················································································- 19 -4.2设计计算······················································································- 19 - 5二沉池 ······································································· - 26 -5.1设计说明······················································································- 26 -5.2设计计算······················································································- 26 - 6液氯消毒 ···································································· - 29 -6.1设计说明······················································································- 29 -6.2设计计算······················································································- 29 - 7污泥浓缩池 ································································· - 30 -7.1设计说明······················································································- 30 -7.2设计计算······················································································- 30 -8 污泥消化池 ································································· - 31 -8.1设计说明······················································································- 31 -8.2设计计算······················································································- 32 - 9浓缩污泥提升泵房 ························································ - 38 -9.1设计选型······················································································- 38 -9.2提升泵房······················································································- 38 -9.3污泥回流泵站··············································································- 38 -10污泥脱水间 ······························································· - 39 -10.1设计说明······················································································- 39 -11鼓风机房 ·································································· - 39 - 12恶臭处理系统 ···························································· - 39 -12.1设计说明······················································································- 39 -12.2设计计算······················································································- 39 -12.3风机选型······················································································- 40 - 第四章污水处理厂总体布置 ····················································· - 41 -1总平面布置 ································································· - 41 -1.1总平面布置原则··········································································- 41 -1.2总平面布置结果··········································································- 41 -2高程布置································································································- 42 -2.1高程布置原则··············································································- 42 - 第五章参考文献 ···································································· - 42 -第一章设计概述1设计任务本次课程设计的主要任务是完成某城市污水厂的A2/O工艺设计处理生活污水，处理水量为20000m3/d，按近期规划人口10万人计算（自定）。
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工艺万方污水处理厂毕业设计说明书全套C图纸文档编制序号：[KK8UY-LL9IO69-TTO6M3-MTOL89-FTT688]摘要我国水体污染主要来自两方面，一是工业发展超标排放工业废水，二是城市化中由于城市污水排放和集中处理设施严重缺乏，大量生活污水未经处理直接进入水体造成环境污染。
工业废水近年来经过治理虽有所减少，但城市生活污水有增无减，占水质污染的51%以上。
我国水体污染主要来自两方面，一是工业发展超标排放工业废水，二是城市化中由于城市污水排放和集中处理设施严重缺乏，大量生活污水未经处理直接进入水体造成环境污染。
工业废水近年来经过治理虽有所减少，但城市生活污水有增无减，占水质污染的51%以上。
本设计要求处理水量为28000m3/d的城市生活污水，设计方案针对已运行稳定有效的A2/O活性污泥法工艺处理城市生活污水。
A2/O工艺由于不同环境条件，不同功能的微生物群落的有机配合，加之厌氧、缺氧条件下，部分不可生物降解的有机物（COD）能被开环或断链，使得N、P、有机碳被同时去除，并提高对NB的去除效果。
它可以同时完成有机物的去除，硝化脱氮、磷的过量摄取而被CODNB+－N应完全硝化，好氧池能完成这一功能，缺氧去除等功能，脱氮的前提是NH3池则完成脱氮功能。
厌氧池和好氧池联合完成除磷功能。
关键词：城市生活污水，活性污泥，A2/O第一章设计任务书设计题目某县污水处理厂设计设计资料城市概况西北某县，十年后城区规划人口为16万，城市工业主要有食品、酿造、机械、电子、纺织等。
工业废水占城市总废水量的20%，各工业废水经过处理达到国家标准后排入城市污水管网。
排水系统雨水与污水采用分流制，生活污水与工业废水为合流制，污水处理厂只考虑处理生活污水与工业废水，输入污水厂的污水干管直径为1000mm，管底埋深为地面以下5.3m，充满度为。
水量（1）综合生活污水量每人每日平均污水量定额取n为120L，生活污水量总变化系数根据公式K=z 计算，其中Q的单位为L/s。
式中：Q——平均日平均时污水量，L/s；N——设计人口数；n——综合生活污水定额，（L/（人*d））；K——生活污水量综合变化系数。
Z则综合生活污水设计流量为：式中：Q——综合生活污水设计流量，L/s。
d（2）工业废水水量该城市现有工业废水排放量21000 m3/d，污水处理厂接纳城市生活污水和工业废水，其中工业废水排放量占废水总量的20%，Qm=4200 m3/d （3）设计总流量城市污水总的设计流量是居住区生活污水设计流量、工业废水设计流量和地下水渗入量三部分之和。
一般入渗地下水量按前两者水量之和的10%~15%计算，本次设计取15%。
式中：Qdr——平均日平均时污水量，L/s；Qm——工业废水设计流量，L/s；Qu——入渗地下水量，L/s；原水水质如表1-2-4：表1-2-4 进水水质表水质指标(mg/l)5(mg/l)(mg/l)4(mg/l)(mg/l)(mg/l)测量数值38018020040558注：（1）表中数值为日平均值；（2）污水平均水温为25o C（夏季）和10o C 左右（冬季）；（3）工业废水的水质不影响生物处理。
出水水质达到城镇污水处理厂污染物排放标准（GB 18918-2002）中的一级B 标准。
处理后污水排入水体。
出水水质表见表1-2-5：表1-2-5 出水水质表水质指标(mg/l)5(mg/l)(mg/l)4(mg/l)(mg/l)(mg/l)测量数值602020820污水处理厂拟用场地选在城市西郊荒地，地下水位距地面10m，荒地可使用面积足够大，其地势平坦，海拔高度为。
厂区西部百米有自南向北的河流。
厂区远离城市水源地，与周边居住区有一定距离。
（1）．气象资料表1-2-7 气象资料气象参数气象资料情况风向全年主导风向为东北风，夏季主导风向为西南风年平均风速 3.3m/s降雨量年平均900~1200mm，其中2/3集中在夏季，7月15日至8月10日为暴雨集中期温度年平均13o C，极端温度：最高39o C，最低 -10o C地下水位地面下10m（2）污水排水接纳河流资料据1960~2008年连续观测，河流平均流量为s，枯水期 m3/s，最大流量24 m3/s。
河道的最高洪水位标高为，常水位标高为，枯水位标高为。
（3）工程地质资料地质钻探结果表明，沿河地质结构（由上而下）由表土层、亚粘土层、细砂中砂层、卵石层以及基岩层构成。
其中表土层2m以下，亚粘土层~6.5m。
基岩层最浅7m以下，最深12m以下，地基计算强度建议采用2.1kg/cm2，地下水质对各类水泥均无侵蚀作用，地震基本烈度为7度。
设计内容根据规划和所给的其它原始资料，设计城市污水处理厂，设计的主要内容和深度相当于简化的初步设计，类似于工艺设计方案。
具体内容包括：工艺流程的确定（1）论述现有城市污水处理常用工艺，流程中各处理单元的作用及相互关系；（2）确定本工程的工艺流程，并说明理由；（3）列表说明各单元的处理效率。
构筑物设计（1）在工艺的基础上，确定各构筑物和相应的配套设备的形式；（2）确定各处理单元的主要工艺设计参数，据此确定各构筑物的大小、外部形状尺寸和占地面积。
写出计算的过程和结果，对于主要构筑物，用单线的结构示意图标注其主要尺寸；（3）汇总构筑物一览表。
设备选型根据给定条件和计算结果选择所需的设备。
附属建筑物根据国家城镇污水处理厂附属建筑和附属设备设计标准（GJJ 31-89）确定办公室、检验室、机修等的占地面积。
平面和高程布置绘制污水厂的工艺平面布置图，内容包括：标出水厂的范围、全部处理构筑物及辅助建筑物、主干道及主要管线的布置；绘制污水厂工艺流程高程布置，表示原水、各处理构筑物的高程关系、水位高度以及污水厂排放口的标高。
设计成果完成设计提交的设计成果包括：（1）设计说明书对设计内容的详细陈述，设计的依据和计算的过程、工艺流程框图、设备选型、设备和构筑物一览表、装机总容量等。
（2）污水处理厂平面布置图和高程布置图各一张，均采用A1图纸。
主要参考资料室外排水设计规范(2014年版)于尔捷,张杰. 给水排水工程快速设计手册2: 排水工程. 北京: 中国建筑工业出版社, 1996崔玉川等. 城市污水厂处理设施设计计算. 北京：化学工业出版社，2004张自杰主编，排水工程下册（第四版），北京：中国建筑工业出版社，2000给水排水设计手册第1册：常用资料给水排水设计手册第5册：城镇排水给水排水设计手册第9册：专用机械给水排水设计手册第11册：常用设备第二章处理工艺的选择与确定确定处理方案的原则城市污水处理的目的是使之达标排放或污水回用用于使环境不受污染，处理后出水回用于农田灌溉，城市景观或工业生产等，以节约水资源。
《城市污水处理及污染防治技术政策》对污水处理工艺的选择给出以下几项关于城镇污水处理工艺选择的准则：城市污水处理工艺应根据处理规模、水质特征、受纳水体的环境功能及当地的实际情况和要求，经全面技术经济比较后优先确定。
工艺选择的主要技术经济指标包括：处理单位水量投资，削减单位污染物投资，处理单位水量电耗和成本，削减单位污染物电耗和成本，占地面积，运行性能，可靠性，管理维护难易程度，总体环境效益。
应切合实际地确定污水进水水质，优先工艺设计参数必须对污水的现状，水质特征，污染物构成进行详细调查或测定，做出合理的分析预测。
在水质组成，复杂或特殊时，进行污水处理工艺的动态试验，必要时应开展中试研究。
污水处理工艺方案比选污水水质特点分析本次设计污水场污水各项指标去除率详见表1-2-1：表1-2-1 污水各项指标去除率水质指标(mg/l)5(mg/l)(mg/l)4(mg/l)(mg/l)(mg/l)进水水质38018020040558出水水质602020820去除率%848990806482在出水水质要求达到一级B标的情况下，进水中SS、TP、NH3-N浓度高。
所用工艺二级处理工艺备选方案根据《城市污水处理及污染防治技术政策》，在不同处理规模时二级处理工艺的选择情况规定如下：（1）日处理能力在20万立方米以上(不包括20万立方米/日)的污水处理设施，一般采用常规活性污泥法。
也可采用其它成熟技术。
（2）日处理能力在10~20万立方米的污水处理设施，可选用常规活性污泥法、氧化沟法、SBR法和AB法等成熟工艺。
（3）日处理能力在10万立方米以下的污水处理设施，可选用氧化沟法、SBR 法、水解好氧法、AB法和生物滤池法等技术，也可选用常规活性污泥法。
本设计水量在每日10万立方米以下，符合第三种情况，因此几乎所有方案都可作为备选方案。
方案比较根据计算所得的去除率，采用普通活性污泥法二级处理可以满足污水厂对COD、BOD和SS的处理要求。
但是，查阅相关资料表明，普通活性污泥法对氮的去除率仅为20﹪～30﹪，磷的去除率为5﹪～20﹪（《排水工程》38页），远不能满足需要，因此有必要采用除磷脱氮的活性污泥法工艺。
采用除磷脱氮的活性污工艺要求的进水水质条件如下：（1）水温应在15℃以上，当水温低于15℃时，硝化速度明显降低；（2）水中应有足够的碱度，将 1gNH3－N氧化成硝态氮需要消耗碱度；（3）进水溶解性BOD浓度与硝酸态氮浓度之比应在4以上（反硝化）；（4）五日生化需氧量与总磷之比应在17以上，因为比值过低，积磷菌在厌氧池放磷时释放的能量不能很好的被用来吸收和贮藏溶解性有机物，影响该类细菌在好氧池的吸磷。
按照以上对进水水质的分析，污水厂进水中BOD5/TP=20， BOD5/TN=5，能够满足生物除磷脱氮的要求，因此，本工程采用生物脱氮除磷工艺是可行的。
查阅相关资料，参考各地的实际工程运行经验，采用了脱氮除磷工艺的活性污泥法，可以使NH－N的去除率达到约90﹪，TN的去除率达到75﹪以上，TP的3去除率达到70﹪以上，出水的TP在L以下。
因此，采用除磷脱氮的活性污泥法工艺能够满足出水水质指标的要求。
下面分别对各个除磷脱氮工艺方案的优缺点进行分析。
（1）A2/O法优点：a.基建费用低，具有较好的脱氮，除磷功能；b.具有改善污泥沉降性能，减少污泥排放量c.具有提高对难降解生物有机物去除效果，运转效果稳定d.技术先进成熟，运行稳妥可靠，管理维护简单，运行费用低缺点：a.处理构筑物较多;b.需增加内回流污泥系统（2）氧化沟法优点：a.处理流程简单，构筑物少，基建费用较省；b.处理效果好，有较稳定的脱氮除磷功能；c.有抗冲击负荷的能力；d.能处理不易降解的有机物，污泥生成少。
缺点：a.处理构筑物较多；b.回流污泥溶解氧较高，对除磷有一定的影响；c.容积和设备利用率不高，占地面积大（3）SBR法优点：a.其脱氮除磷的厌氧，缺氧和好氧不是由空间划分，而是用时间控制的；b.不需要回流污泥和回流混液，不设专门的二沉池，构筑物少c.占地面积少；缺点：a.操作，管理，维护较复杂b.自控程度高，对工人素质要求较高。