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}

城市污水厂设计某区2万m3d 污水处理厂设计

城市污水厂设计某区2万m3d 污水处理厂设计前言 (3)设计任务书 (3)一．设计任务 (3)二．任务的提出及目的要求 (3)（一）任务的提出及目的： (3)（二）要求 (3)三．设计基础资料 (4)（一）水质 (4)（二）水量 (4)（三）设计需要使用的有关法规、标准、设计规范和资料 (4)第一章环境条件 (5)一、厂区地形 (5)第二章设计资料的确定及污水、污泥处理工艺的选择 (5)2.1 设计流量的确定 (5)2.1 污水的水质及其处理要示 (5)2.3 工艺流程的比较选择 (6)2.4 污泥处理工艺方案 (7)第三章污水处理厂工艺设计及计算 (9)第一节格栅及集水池 (9)3.1.1 粗格栅 (9)3.1.2集水池计算： (11)第二节细格栅 (12)第三节曝气气沉砂池 (14)第四节倒置A2/O (16)第五节二沉池 (20)第六节集泥井 (22)第七节加氯消毒池 (23)第四章高程计算 (25)第五章恶臭气体的控制与治理 (27)第一节恶臭气体的组成 (27)第二节恶臭气体主要产生源 (27)第三节恶臭气体的主要控制技术 (27)第四节恶臭气体的治理 (28)主要参考资料 (33)前言设计任务书一．设计任务某区2万m3/d 污水处理厂设计二．任务的提出及目的要求（一）任务的提出及目的：随着经济飞速发展，人民生活水平的提高，对生态环境的要求日益提高，要求越来越多的污水处理后达标排放。

在全国乃至世界范围内，正在兴建及待建的污水厂也日益增多。

根据日处理污水量将污水处理厂分为大、中、小三种规模：日处理量大于10 万m3 为大型处理厂，1-10m3 万为中型污水处理厂，小于1 万m3 的为小型污水处理厂。

通过城市大型污水处理厂工艺的选择、设计，培养环境工程专业学生利用所学到的水污染控制理论，系统的掌握污水处理方案比较、优化，各主要构筑物结构设计与参数计算，主要设备造型包括格栅、提升泵、鼓风机、污泥脱水机、砂水分离器、刮泥机、搅拌器、加药设备、消毒设备等，以及平面布置和高程计算。

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）。

污水处理_城镇生活污水处理厂总平面布置CAD图纸

东南大学能源与环境学院环境工程系}\H0.9896x审核}校核}比例}设计}制图}标准化}日期}工程号}图号}A=0}A=50}A=50}A=100}A=-50}B=50}B=-150}B=-100}B=-50}B=0}B=100}北}\H0.6011x\H0.375x\H1.04x\H1.04x1进水泵房}15102曝气沉砂池}3污泥脱水间}20101884沉渣池}10105初沉池}6污泥浓缩池}7二沉池}89消毒池}10值班室}11办公楼}12变电所}\H2x2024\H2x5040843010101013食堂}201014职工宿舍}3020技术经济指标}用地面积}104m24.7建构筑物面积}2m建筑系数}绿化面积}绿化系数}道路面积}道路系数}厂区围墙长度}%}%}%}m2m2m1012321.5817817.42340649.8869.22说明：}1{\fSimSun|b0|i0|c134|p2、采用相对坐标系，}AB{\fSimSun|b0|i0|c134|p54\C7宣城市文昌镇污水处理厂厂区总平面布置图}年5月}图例}围栏}构筑物}道路}\H0.975x123545677898\H2x24生化处理池}{\fSimSun|b0|i0|c134|p21510\C01011121314151616171718车库}篮球场（两个）}网球场（两个）}10.9823.7715281020151617191918机修间}仓库}20151520=-50.84}B=-160.29A=43.23B=21.29A=-11.94B=-37.68A=-31.94B=-=8.06A=-11.94}B=11.76A=-31.94B=21.76A=-16.62B=26.18A=-31.62B=54.18A=-16.62B=60.84A=-31.62\PB=88.84A=-5.01\PB=82.71A=14.62\PB=82.71A=25.60\PB=106.48A=32.42\PB=84.29A=47.42\PB=104.29}A=52.67\PB=84.29A=67.67\PB=104.29A=75.12\PB=85.74A=85.12\PB=100.74A=25.30\PB=53.92A=75.44\PB=53.62A=-0.30\PB=-71.09A=-10.30\PB=-41.09A=57.62\PB=-28.89A=97.62\PB=21.11A=51.10\PB=-68.87A=74.03\PB=-97.00A=26.67\PB=-96.23A=74.47\PB=-142.14A=56.47\PB=-134.14A=41.06\PB=-142.45A=21.06\PB=-132.45A=9.65\PB=-142.62A=-5.35\PB=-132.62A=-19.70\PB=-142.76A=-29.70\PB=-132.76A=3.23\PB=-28.71A=83.21\PB=-127.48A=93.21\PB=-137.48A=115.17\PB=-160.29A=115.17\PB=123.46A=-50.84\PB=123.46A=5.97\PB=106.48A=-41.16A=7.76B=-123.20B=-151.10A=50.67A=-5.76B=75.34B=113.09A=105.460.2%0.2%4.774.774.773.223.163.114.773.313.543.623.653.453.623.623.623.623.623.353.123.203.423.222.953.44A=-46.83\PB=-92.32A=-50.83\PB=-84.323.44=0}=0}=40Ө}AB\H1.2x{\fSimSun|b0|i0|c134|p2{\fSimSun|b0|i0|c134|p2

50000m3d城市污水处理厂设计(A2O) 总稿 - 副本

第一章设计说明书1.1城市污水处理概论城市污水处理是指为改变污水性质，使其对环境水域不产生危害而采取的措施。

城市污水处理一般分为三级：一级处理，系应用物理处理法去除污水中不溶解的污染物和寄生虫卵；二级处理，系应用生物处理法将污水中各种复杂的有机物氧化降解为简单的物质；三级处理，系应用化学沉淀法、生物化学法、物理化学法等，去除污水中的磷、氮、难降解的有机物、无机盐等。

至于采取哪级处理比较合理，应视对最终排出物的处理要求而定。

城市污水处理技术就是利用各种设施设备和工艺技术，将污水所含的污染物质从水中分离去除，使有害的物质转化为无害的物质、有用的物质，水则得到净化，并使资源得到充分利用。

城市污水处理技术通常有物理处理技术、化学处理技术、物理化学处理技术、生物处理技术等。

典型的物理处理技术在城市污水处理中应用的有沉淀技术、过滤技术、气浮技术等。

典型的化学处理技术和物理化学处理技术有中和、加药混凝、离子交换等。

典型的生物处理技术有好氧牲氧化分解和厌氧生物发酵技术。

城市污水处理工艺，实际上是以上这些技术的应用与组合。

城市污水处理工艺：城市污水处理工艺按流程和处理程序划分，可分为预处理工艺，一级处理工艺、二级处理工艺、深度处理工艺和污泥处理工艺，以及最终的污泥处置。

城市污水处理工艺目前仍在应用的有一级处理、二级处理、深度处理，但国内外最普遍流行的是以传统活性污泥法为核心的二级处理。

城市污水处理工艺的确定，是根据城市水环境质量要求、来水水质情况、可供利用的技术发展状态、城市经济状况和城市管理运行要求等诸方面的因素综合确定的。

工艺确定前一般都要经过周密的调查研究和经济技术比较。

最近几年国内应用较多的有A-O或A-A-O工艺、SBR工艺、氧化沟工艺等类型。

A-O或A-A-O工艺也叫缺氧-好氧或厌氧-缺氧-好氧工艺。

这一工艺的开发主要是为了满足脱氮除磷的需要，这是一种经济有效的生物脱氨除磷技术，我国南方不少污水厂就采用这一工艺。

ao工艺万方污水处理厂毕业设计说明书全套cad图纸

ao工艺万方污水处理厂毕业设计说明书全套cad图纸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 NB）能被开环或断链，使得N、P、有机碳被同时去除，并提高对COD NB-的去除效果。

它可以同时完成有机物的去除，硝化脱氮、磷的过量摄取而被去除等功能，脱氮的前提是NH3+－N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第一章设计任务书1.1 设计题目某县污水处理厂设计1.2 设计资料1.2.1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。

1.2.2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0.5。

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=2.72/Q0.108计算，其中Q的单位为L/s。

2万立方米天给水处理厂设计(有全套CAD图纸)(可编辑)

2万立方米天给水处理厂设计（有全套CAD图纸）全套CAD图纸,174320523 各专业都有目录摘要3Abstract 3前言31 给水厂处理设计任务书 31.1设计任务书 31.1.1设计题目 31.1.2设计原始资料 31.1.3设计任务 31.1.4设计要求 31.2给水处理厂设计水质及水量要求 31.2.1城市用水要求 31.2.2给水处理厂设计水量的确定 32 给水处理工艺流程和给水处理构筑物的选择 32.1 设计原则 32.2 设计规模 32.3 厂址选择 32.4 水厂工艺流程选择 32.5 处理构筑物的选择32.5.1混凝工艺选择 32.5.2 混合工艺 32.5.3 絮凝池形式的选择 32.5.4 沉淀工艺 32.5.5 过滤工艺 32.5.6 消毒工艺 32.5.7 清水池32.6给水处理厂工艺流程的确定 33 加药构筑物设计 33.1 混凝剂的储存及配制 33.1.1 药剂仓库 33.1.2溶液池容积计算 33.1.3 溶解池容积计算33.1.4. 计量设备 33.2混合 34 絮凝构筑物设计 34.1设计参数 34.2.池体设计 34.3竖井设计计算 34.3.1.絮凝池单个竖井的平面面积 3 4.3.2竖井的个数 34.3.3.竖井内栅条的布置 34.3.4.竖井隔墙孔洞尺寸 34.3.5.絮凝池出口穿孔尺寸 3 4.4 水头损失 34.4.1第一段计算 34.4.2 第二段计算 34.4.3第三段计算 34.5 校核: 34.6排泥 35 沉淀设备设计 35.1设计参数 35.2 池体尺寸 35.2.1清水区面积 35.2.2 沉淀池长度及宽度 35.2.3 池体高度 35.3 沉淀池进口穿孔花墙 35.4 集水系统35.4.1 集水槽 35.4.2 孔眼计算 35.4.3出水管及出水总渠 35.5沉淀池斜管的选择 35.6 排泥系统 35.7校核 35.7.1.雷诺数 35.7.2.弗劳德系数 35.7.3.斜管中的沉淀时间 36 普通快滤池设计 36.1平面尺寸计算 36.1.1滤池的总面积: 36.1.2单格面积 36.2滤池高度 36.3配水系统 36.3.1最大粒径滤料的最小化态流速 3 6.3.2反冲洗强度 36.3.3反冲洗水流量 36.3.4干管始端流速 36.3.5配水支管流速 36.3.6单根支管入口流量 36.3.7支管入口流速 36.3.8配水支管上孔口总面积 36.3.9配水支管上孔口流速36.3.10单个孔口面积 36.3.11孔口总数 36.3.12每根支管上的孔口数 36.3.13孔口中心距36.3.14孔口平均水头损失 36.3.15配水系统校核 36.4洗砂排水槽 36.5滤池反冲洗 36.5.1高位冲洗水箱的容积36.5.2承托层的水头损失 36.5.3冲洗时滤层的水头损失 3 6.5.4冲洗水箱高度 36.6进出水系统 36.6.1进水总渠 36.6.2反冲洗进水管 36.6.3清水管 36.6.4排水渠 37 消毒构筑物设计 37.1加氯量计算及相关问题37.2加氯间布置 38 清水池及吸水井的设计 38.1清水池尺寸 38.2清水池各管管径的确定38.2.1清水池的进水管 38.2.2清水池的出水管 38.2.3清水池的溢流管 38.2.4清水池的排水管 38.3清水池的布置 38.4吸水井布置 39 二级泵站设计 39.1 初选水泵 39.1.1设计流量 39.1.2设计扬程 39.1.3选泵39.2水泵管路布置 39.2.1管路设计管径 39.2.2吸水管布置 39.2.3出水管布置 39.2.4管路附件选配 39.3 选泵校核 39.3.1 每台泵吸水管水头损失 39.3.2 每台泵压水管路水头损失 3 9.3.3 水泵扬程的确定 39.3.4 校核 39.4 水泵基础设计 39.5各工艺标高计算 39.5.1 水泵轴心标高的确定 39.5.2 泵房高度的计算 39.5.3其他工艺标高 39.6 附属设备的选择 39.6.1 起重设备 39.6.2 排水设备 39.6.3 通风设备 39.6.4 引水设备 39.6.5计量设备 310 给水处理厂的总体布置 310.1平面布置 310.1.1地表水厂的组成 310.1.2平面布置 310.2高程布置 310.2.1管渠水力计算 310.2.2给水处理构筑物高程计算 310.2.3给水处理构筑物高程布置 3结论3谢辞3参考文献 3摘要本设计为2万立方米/天给水处理厂设计,主要是给水处理厂的设计该厂的水源为地表水,水质情况良好,水库位于城市给水处理厂东北方向50米,水厂位于城市北面公里处,原水水质其中的一些常规的检测项目已经符合《生活饮用水水质卫生规范(2001)》的要求,需要处理的为水源的浊度、残渣及细菌的灭活。

工艺万方污水处理厂毕业设计说明书全套c图纸

工艺万方污水处理厂毕业设计说明书全套c图纸TPMK standardization office【 TPMK5AB- TPMK08- TPMK2C- TPMK18】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 NB）能被开环或断链，使得N、P、有机碳被同时去除，并提高对COD NB的去除效果。

它可以同时完成有机物的去除，硝化脱氮、磷的过量摄取而被去除等功能，脱氮的前提是NH3+－N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第一章设计任务书1.1 设计题目某县污水处理厂设计1.2 设计资料1.2.1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。

1.2.2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0.5。

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}

城市污水厂设计 某区2万m3d 污水处理厂设计

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}

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

污水处理_城镇生活污水处理厂总平面布置CAD图纸

50000m3d城市污水处理厂设计(A2O) 总稿 - 副本

ao工艺万方污水处理厂毕业设计说明书全套cad图纸

2万立方米天给水处理厂设计(有全套CAD图纸)(可编辑)

工艺万方污水处理厂毕业设计说明书全套c图纸

城市污水厂设计某区2万m3d 污水处理厂设计