城市污水处理厂设计

城镇污水处理厂设计方案

城镇污水处理厂设计方案引言城镇污水处理厂是为了解决城市污水处理问题而建设的重要设施。

它可以将城镇污水经过一系列的处理工艺，降低其对水体和环境的污染程度，保障人民群众的健康和生活质量。

本文档将详细介绍城镇污水处理厂的设计方案。

设计目标城镇污水处理厂的设计目标是实现对城镇污水进行高效、稳定、安全的处理，将污水中的有害物质和污染物去除或减少到符合国家排放标准的要求，并能够满足城镇的污水排放量及水质要求。

处理工艺城镇污水处理厂的处理工艺主要包括以下几个环节：1.污水进流及初级处理：–污水进入处理厂后，通过进水口进入初级处理区域。

–初级处理主要包括格栅池、沉砂池和调节池等，用来去除大颗粒杂质和沉淀悬浮物。

2.生化处理：–经过初级处理后的污水，进入生化处理系统。

–生化处理采用活性污泥法或厌氧发酵法，利用微生物对污水中的有机物进行降解和分解。

3.深度处理：–经过生化处理的污水，进入深度处理环节，以进一步降低污水中的有害物质和污染物。

–深度处理采用常见的工艺包括曝气池、沉淀池、过滤池等。

4.出水处理：–经过深度处理的污水经过最后一道工艺，以达到国家排放标准的要求。

–出水处理主要包括消毒和除臭等环节，以确保出水的安全和无臭。

设备选型城镇污水处理厂的设备选型要根据工艺流程和处理规模来确定，主要包括以下几个方面：•初级处理设备：包括格栅机、沉砂池、调节池等。

•生化处理设备：包括曝气池、好氧池、厌氧池等。

•深度处理设备：包括曝气池、沉淀池、过滤器等。

•出水处理设备：包括消毒装置、臭氧装置等。

在设备选型时，要综合考虑设备的性能、可靠性、维护成本和运行成本等因素。

操作控制城镇污水处理厂的操作控制是保证处理工艺正常运行和处理效果的关键。

主要包括以下几个方面：1.流程控制：根据处理工艺和污水水质，调整处理工艺参数，保证处理效果和稳定性。

2.设备操作：对处理设备进行日常操作、维护和保养，及时处理设备故障。

3.水质监测：对进水、出水和处理过程中的各个环节进行水质监测和分析，及时掌握处理效果。

城镇污水处理厂设计标准

城镇污水处理厂设计标准城镇污水处理厂是城市环境保护的重要设施，其设计标准直接关系到城市污水处理效果和环境质量。

在设计城镇污水处理厂时，需要严格遵循相关的设计标准，以确保污水处理设施的安全、高效运行。

本文将从设计标准的角度，对城镇污水处理厂的设计要求进行详细介绍。

首先，城镇污水处理厂的设计应符合国家相关的环保法律法规和标准。

设计人员需要了解并遵守《城镇污水处理厂污水综合排放标准》、《城镇污水处理厂污泥利用标准》等相关标准文件，确保设计方案符合国家环保要求。

其次，城镇污水处理厂的设计应充分考虑当地的污水水质和水量特点。

根据不同地区的水质情况和污水排放量，合理确定处理工艺和设备选型，保证污水处理效果达标，同时尽量减少能耗和化学品使用，降低运行成本。

另外，城镇污水处理厂的设计应考虑未来的城市发展规划。

随着城市人口和工业生产的增加，污水处理厂的处理能力需要具备一定的扩展性，以适应未来的污水处理需求。

因此，在设计阶段就需要考虑到未来的扩建和改造方案，确保污水处理厂的可持续发展。

此外，城镇污水处理厂的设计还需要考虑安全和环保要求。

在设计过程中，需要充分考虑设施的安全性和环保性，采取相应的防护措施，避免对周围环境和居民造成影响，确保污水处理过程安全可靠。

最后，城镇污水处理厂的设计还需要考虑运行管理的便利性。

在设计阶段就需要考虑到设备的维护和管理，合理布局设施，确保设备的维修和更换工作能够顺利进行，同时也需要考虑到运行管理的智能化和自动化，提高设施的运行效率。

总之，城镇污水处理厂的设计标准是保障城市环境卫生和居民健康的重要保障，设计人员在设计城镇污水处理厂时，需要充分考虑国家环保标准、当地水质特点、未来发展规划、安全环保要求和运行管理便利性等方面的要求，确保设计方案科学合理，满足城市污水处理的需要。

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）。

城市污水处理厂设计与建设标准

城市污水处理厂设计与建设标准城市污水处理厂设计与建设标准近年来，随着城市化的不断推进，城市污水处理厂的设计与建设变得越发重要。

它不仅需要解决城市污水处理的问题，还需要考虑环境保护、资源利用和可持续发展等方面的要求。

本文将从深度和广度两个维度，探讨城市污水处理厂设计与建设的标准，并分享我对这一主题的观点和理解。

一、基本概念和原则1.1 污水处理厂概述：城市污水处理厂是用于收集、处理和排放城市生活污水的设施。

它通过物理、化学和生物等多种方式对污水进行处理，以去除污染物和净化水质。

1.2 设计原则：城市污水处理厂的设计应遵循以下原则：1) 以保护环境为核心：减少污染物排放，确保处理后的污水质量符合相关标准。

2) 实现资源回收利用：通过适当的处理工艺，从污水中回收利用有价值的物质，如有机肥料和能源等。

3) 排泄物处理：对处理过程中产生的排泄物和副产物要进行有效的处理和处置，以降低对环境的影响。

4) 长期可持续发展：设计应考虑未来城市发展的需求，并采用灵活的工艺和装置，以满足未来的处理要求。

二、深度探讨2.1 设计参数与标准1) 处理能力：城市污水处理厂设计时需根据城市人口规模和预计污水排放量确定处理能力，以确保能够满足日常运行的需求。

2) 水质要求：根据国家和地方相关标准，确定处理后的污水质量要求，包括悬浮物、BOD、COD、氨氮、总磷等指标。

3) 占地面积：根据处理能力和工艺的选择，合理确定污水处理厂的占地面积，以确保足够的空间容纳各个处理单元和设备。

4) 设计寿命：考虑到投资回收和设备维护的需要，污水处理厂的设计寿命一般应达到20年以上。

2.2 处理工艺选择1) 生物处理：常见的处理工艺包括活性污泥法、MBBR法和生物膜法等。

选择适当的工艺要考虑处理效果、运行成本和可持续性等因素。

2) 辅助工艺：如沉淀池、滤池、消毒设施等，在生物处理之后用于进一步去除悬浮物和病原体等有害物质。

3) 先进处理技术：如反渗透、高级氧化等先进技术可用于特殊情况下的水质提升或回收利用。

5000m3城市污水处理设计计算

5000m3/d城镇污水处理厂设计计算该城镇污水厂设计进水水质各项指标如下：4设该城镇污水无毒物、各种重金属离子等。

可生化性：BOD/COD=0.4＞0.3。

可生化性好，易生化处理。

设计去除BOD=200-20=180mg/L根据生化处理BOD ：N ：P=100：5：1则去除180mg/LBOD 则需要消耗N4mg/L 、P0.8mg/L 。

因此，根据进出水质标准，还应该去除的TN ＝25－4－5＝16mg/L ，TP ＝5－0.8－0.5＝3.7mg/L 。

应继续去除的TN 与TP 之比接近5，因此需同步脱氮除磷。

去除率的计算：COD 去除率＝(500－60)/500＝88% BOD 去除率＝(200－20)/200＝90% TN 去除率＝(25－5)/25＝80% TP 去除率＝(5－0.5)/5＝90% SS 去除率＝(200－50)/200＝75%根据上述计算，各项污染物的去除率都在90%左右，而且该工艺还需要同步脱氮除磷，因此选定厌氧—缺氧—好氧生物同步脱氮除磷工艺（A 2/O)。

工艺流程简图如下：消化液回流污泥、浮渣加药管污泥回流1、格栅计算：由于城镇污水中较大悬浮物和较小漂浮物较多，故采用栅条间隙宽度为0.016~0.025的细格栅，取b=0.02，栅条宽度S=0.01m 。

格栅倾角α=60o C 。

污水平均设计流量为Q=0.05m 3/s ，考虑到城镇早晚用水高峰，则取最大设计流量为Q max =0.1m 3/s 。

设计栅前水深h=0.4m ，过栅流速=0.9m/s ，栅条栅条间隙数n=bhv sin Qmax α=9.04.002.060sin 1.0⨯⨯=13.65，取n=14栅槽宽度B=S(n －1)+bn=0.01(14－1)+0.02×14=0.41m设栅前渠道超高h 1=0.3m ，通过格栅水头损失h 2=0.1m ，则栅后渠道总高度H=h+h 1+h 2=0.4+0.3+0.1=0.8m ，设栅槽长度L=1m 。

城市污水处理厂初步设计

城市污水处理厂初步设计一、设计目标二、设计方案1.设计规模根据城市的人口规模和污水排放量，初步确定处理规模为每天处理X 吨的污水。

同时，根据未来城市发展的规划，预留必要的扩容空间。

2.污水收集系统设计污水收集系统，包括污水管网、污水泵站等设施。

确保良好的收集系统能够将城市各个区域的污水集中至处理厂。

3.污水预处理设计污水初级处理系统，包括格栅、沉砂池等设施。

通过去除大颗粒物和沉淀可降解有机物，减少污水中的悬浮物和有机负荷。

4.污水生化处理设计生化处理系统，包括活性污泥法、厌氧池等设施。

通过好氧和厌氧的处理过程，将污水中的有机物进一步降解，减少有机负荷和氮磷等营养物质。

5.污泥处理设计污泥处理系统，包括污泥浓缩、脱水和焚烧等设施。

通过浓缩和脱水，将污泥的含水率降低，减少体积。

焚烧处理可以确保污泥的无害化处理。

6.排放系统设计排放系统，包括沉淀池和消毒设施。

通过沉淀池使污水中的悬浮物得到沉淀，确保排放的水质符合国家和地方的排放标准。

消毒设施会对排放水进行消毒处理，杀灭其中的病原微生物。

7.控制系统设计自动化控制系统，对整个处理过程进行自动化的监控和控制，以提高处理效率和运行稳定性。

同时，设计相应的应急措施和报警系统，确保设备运行的安全和可靠性。

三、设施布局与建筑设计根据处理流程和设备布置要求，进行设施布局和建筑设计。

确保各个设施之间的合理连接和交通，方便设备维护和操作。

四、能源利用与环保措施在设计中考虑能源利用和环保措施的合理利用。

可以利用污水处理过程产生的沼气进行能源回收和利用。

同时，设计适当的除臭和噪音防治设施，减少对周边环境的影响。

五、设备选型与施工方案根据处理规模和处理工艺要求，进行适当的设备选型，确保设备的可靠性和处理效果。

同时，制定施工方案，确保设备的按时按质完成，并确保设备的可持续运行和维护。

六、运维管理方案制定污水处理厂的运维管理方案，包括设备的维护、维修和替换计划，培训和安全管理等。

城市污水厂设计规范

城市污水厂设计规范1. 引言城市污水厂是处理和处理城市污水的重要设施。

污水厂设计的合理性和规范性对于保护环境、减少污染物排放具有重要意义。

本文档旨在提供城市污水厂设计规范，确保城市污水得到有效处理，并满足环保标准。

2. 设计原则城市污水厂设计应遵循以下原则：•可持续性：设计应考虑资源利用、能源消耗和环境影响的最小化。

•适应性：设计应具备适应不同规模和特性的污水处理需求的能力。

•安全性：设计应确保操作人员和环境的安全。

•经济性：设计应在合理的投资和运营成本范围内实现高效的污水处理。

3. 设计要求3.1 污水处理流程污水处理流程是城市污水厂设计的核心部分。

设计应该包括以下步骤：1.预处理：包括格栅、沉砂池和沉淀池等设备，以去除污水中的固体物质和沉淀物。

2.生物处理：采用活性污泥法、厌氧处理或其他生物处理方法降解有机污染物。

3.二次沉淀：通过设置二次沉淀池来分离和去除残余的悬浮物和生物污泥。

4.消毒：采用紫外线辐射或氯化等方法杀灭残余的微生物。

5.除磷处理：对需要达到排放标准的污水，可以引入磷消除工艺。

3.2 设备选择设计应根据处理规模和可行性研究选择合适的设备。

常用的设备包括：•格栅：用于去除污水中的固体物质。

•沉砂池：用于去除沉淀性固体物质。

•曝气池：用于提供生物降解有机污染物所需的氧气。

•二次沉淀池：用于分离和去除混合液中的悬浮物和污泥。

•消毒设备：用于杀灭残余的微生物。

3.3 设计参数在设计城市污水厂时，需考虑以下参数：•处理能力：根据预测的污水流量和水质要求，确定处理能力。

•停留时间：决定污水在不同处理单元中的停留时间，以确保充分的处理效果。

•有机负荷：根据污水中有机物的含量和水质要求，确定有机负荷。

•氮磷去除率：根据排放标准，确定氮磷去除率。

•消毒效果：根据排放要求，确定消毒效果。

4. 设计计算在城市污水厂设计中，需要进行一系列的设计计算，以确定合适的设备尺寸和工艺参数。

常见的设计计算包括：1.水力计算：根据设计流量和水质要求，计算污水处理单元的水力负荷。