乡镇生活污水处理方案SBR法.docx

乡镇生活污水处理方案SBR法.docx

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乡镇生活污水处理方案SBR法

乡镇生活污水处理方案SBR法

　　胶州市XXX镇水处理厂工艺方案　　第1页共14页

　　目　　录

　　第一项概述····································································································2

　　一、概述········································································································································2二、设计依据································································································································4三、设计原则································································································································5四、设计范围································································································································5

　　第二项工艺设计································································································6

　　一、工艺论述································································································································6

　　原水设计参数·······················································································6工艺选择·····························································································6

　　二、工艺流程图····························································································································7三、各工艺单元去除效果表········································································································8四、各工艺单元说明····················································································································8

　　预处理································································································8SBR法生物处理···················································································8污泥处理·····························································································9

　　五、工艺设计及设备选型············································································································9

　　格栅井································································································9调节池································································································9SBR池·····························································································10污泥浓缩池·························································································11污泥脱水系统······················································································11设备房······························································································12第三项经济分析······························································································12

　　一、价格概算······························································································································12二、运行费用分析······················································································································13

　　主要指标···························································································13运行费用分析·····················································································13

　　胶州市XXX镇水处理厂工艺方案　　第2页共14页

　　第一项概述

　　一、概述

　　北京XXXXX工程有限公司是中国XXXXX集团公司的直属企业，技术力量雄厚，拥有经验丰富的研究员、高级工程师，从事环保技术的研究，新产品的开发和设计，环境保护设施的运营等。

公司具有环境污染防治工程甲级设计资质；环境保护设施运营资质证书，可以承担5万吨/日以下的污水处理工程和各类型室内净气及中水处理工程的施工。

公司以航空系统的高技术、高质量、高效率为宗旨，竭诚为广大用户服务，为环境保护、造福人类做贡献。

　　几年来，公司承担了各类供水、工业及生活污水处理工程，技术质量优良，经各地环保部门监测合格，均在正常运行中，如：

XXXXX食品有限公司生产废水处理工程、泰国XXXX水处理工程、约旦XXXXX城市污水处理厂、XXXXX生活污水处理厂、山东XXXXX有限公司污水处理工程、青岛XXXX造有限公司污水处理工程等等。

　　青岛XXXX工程有限公司是总公司为了拓展山东市场，开展山

　　胶州市XXX镇水处理厂工艺方案　　第3页共14页

　　东地区的环保业务而设立的分支机构，主要承接山东地区的环保工程。

总公司为其提供技术支持、技术监督及工程服务，从设计、施工、调试、售后服务等几个重要环节，严格把关，科学管理，要求分公司的一切行为都必须按照总公司的规范进行。

　　胶州市XXX镇水处理厂工艺方案　　第4页共14页

　　二、设计依据

　　污水水量

　　工程设计处理水量：

100m3/d

　　污水水质

　　污水水质为：

　　CODCr≤600mg/lSS≤200mg/lNH3—N≤70mg/l　　PH：

6～9

　　处理后可排放水水质

　　污水经处理后，出水水质应满足如下控制指标：

　　CODCr≤150mg/lSS≤150mg/lPH：

6—9

　　其它设计基础资料

　　□给排水设计手册

　　□厂方提供的有关技术参数及要求

　　□土建成本估算中的地基处理，因没有地质资料，暂按

　　胶州市XXX镇水处理厂工艺方案　　第5页共14页

　　亚粘土地基考虑，地耐力要求120kn/m2。

土建造价按常规，降水费未计。

□电费：

元/度

　　三、设计原则

　　确保处理能力与出水水质节约能耗，降低运行成本易于操作，易于运行尽量减少占地面积

　　四、设计范围

　　水处理部分

　　自废水进入污水处理厂格栅井开始，经各处理单元后，至标准化排放口为止。

　　其它部分

　　包括建筑结构、电气自控、照明等。

　　胶州市XXX镇水处理厂工艺方案　　第6页共14页

　　第二项工艺设计

　　一、工艺论述

　　原水设计参数

　　原水为胶州市XXXX有限公司及其附近几家企业的生产生活污水。

　　工艺选择

　　原水主要为食品生产废水、厂区生活污水及少量机械加工废水。

污水总水量较小，间歇排放，水质可生化性较好，水中含总氮、有机物等污染类物质。

　　基于污水的上述特点，采用可根据具体污水性质、出水质量与运行功能要求灵活运行的间歇式活性污泥法。

　　SBR池采用悬浮生长活性污泥型好氧生物法，活性污泥好氧和兼性微生物及其代谢的和吸附的有机物、无机物组成，具有降解废水中有机物的能力，显示生物化学活性。

污水的净化过程分为吸附、代谢和固液分离三个阶段。

在SBR池中，完成曝气降解和固液分离处理程序。

　　SBR法的运行序列间歇操作为主要特征，其运行方式可根据进

　　胶州市XXX镇水处理厂工艺方案　　第7页共14页

　　水污水水质及出水质量灵活调控。

它相对于连续式活性污泥法相比，具有如下特点：

生化反应推动力大、效率高；污泥不易膨胀；耐冲击负荷、处理能力强；脱氮除磷效果显著；无需加设污泥回流设施、节约费用等。

　　因此确定该污水处理流程中的核心处理工艺为曝气调节—SBR法—规范化排放。

　　二、工艺流程图

　　生产废水

　　格栅

　　曝气调节池　　污泥浓缩池　　SBR池　　鼓风机厢式压滤机　　巴式槽　　

　　泥饼外运　　滤液回流至调节池

　　达标排放

　　胶州市XXX镇水处理厂工艺方案　　第8页共14页

　　三、各工艺单元去除效果表

　　指标COD去除率BOD去除率SS去除率

　　原水600/270/200/曝气调节池570524510//SBR池85851395<50/四、各工艺单元说明预处理

　　格栅起去除污水中固体杂物，纤维状杂质的作用，防止此类物质进入调节池，堵塞污水泵和曝气设备。

设人工格栅一道。

　　预曝气调节池主要用于储存污水，起均化水质，调节水量的作用。

内设穿孔管充氧曝气，可降低水中的BOD、COD的浓度，避免污水厌氧。

　　SBR法生物处理

　　调节池出水提升至SBR池进行生物处理。

SBR池采用悬浮生长活性污泥型好氧生物法，活性污泥好氧和兼性微生物及其代谢的和吸附的有机物、无机物组成，具有降解废水中有机物的能力。

同时，通过合理控制SBR池的运行方式，以达到脱除污水中氨氮的目的。

在SBR池中，完成污水中的有机污染物降解及泥水分离过程。

　　污泥处理

　　在污水处理过程中随着微生物新陈代谢，污水中原有的有机物转化为剩余污泥排出。

剩余污泥经重力浓缩及加药调质后，厢式压滤机进行脱水处理，泥饼外运填埋。

　　五、工艺设计及设备选型格栅井

　　功能：

去除水中大块杂物规格：

1200×500×800mm结构：

钢砼

　　调节池

　　功能：

调节水量、均衡水质

　　规格：

6500×3600×4200mm结构：

钢砼

　　附属设备：

　　■污水提升泵

　　功能：

将调节池内废水提升至SBR池

　　胶州市XXX镇水处理厂工艺方案　　第10页共14页

　　型号：

流量：

25m3/h扬程：

10m功率：

数量：

2台

　　■穿孔曝气管　　

　　功能：

调节水质、抑制臭气产生材质:

UPVC数量：

20m2

　　SBR池

　　功能：

去除废水中的有机污染物、氨态氮硝化规格：

8000×6500×4500mm结构：

钢砼附属设备：

■散流曝气器

　　型号：

SH-215

　　数量：

106个■鼓风机型号：

SSR80

　　胶州市XXX镇水处理厂工艺方案　　第11页共14页

　　气量：

/min风压：

功率：

数量：

1台

　　污泥浓缩池

　　功能：

浓缩活性污泥；规格：

1500×1500×2600mm结构：

钢砼数量：

1座

　　污泥脱水系统

　　功能：

对污泥进行机械脱水，泥饼外运填埋处理附属设备：

■螺杆泵

　　功能：

将污泥送至厢式压滤机并保持压力；型号：

G25-1数量：

1台功率：

■厢式压滤机功能：

机械脱水

　　胶州市XXX镇水处理厂工艺方案　　第12页共14页

　　型号：

XA20/710-U滤室容积：

数量：

1台■加药系统

　　材质：

PVC功率：

数量：

1套

　　■管道混合器

　　型号：

YYGH—40材质：

碳钢防腐数量：

1台

　　设备房

　　功能：

设值班室、化验室、污泥脱水间、风机房。

规格：

8700×6600mm

　　第三项经济分析

　　一、价格概算

　　土建部分：

万元

　　胶州市XXX镇水处理厂工艺方案　　第13页共14页

　　设备部分：

万元其他取费

　　1.设计费：

×3%=万元2.安装费：

（2）×10%=万元3.调试费：

×2%=万元4.运输费：

×3%=万元5.小计：

万元

　　工程总造价：

　　万元

　　二、运行费用分析6主要指标

　　□总装机容量□常用负荷　　7kw□占地面积　　240m2□人员编制　　1人

　　运行费用分析

　　□电费:

　　日耗电量:

×=·hr

　　胶州市XXX镇水处理厂工艺方案　　第14页共14页

　　每日电费：

度×元/度=元吨水电费：

/100=元□药剂费：

　　PAM（+）日耗量：

　　每日药费：

38×=元吨水药费：

/100=元□人工费

　　每人每日工资：

25元每日人工费：

25元

　　吨水人工费：

25/100=元

　　吨水处理成本：

++=元

　　胶州市XXX镇水处理厂工艺方案　　第1页共14页

　　目　　录

　　第一项概述····································································································2

　　一、概述········································································································································2二、设计依据································································································································4三、设计原则································································································································5四、设计范围································································································································5

　　第二项工艺设计································································································6

　　一、工艺论述································································································································6

　　原水设计参数·······················································································6工艺选择·····························································································6

　　二、工艺流程图····························································································································7三、各工艺单元去除效果表········································································································8四、各工艺单元说明····················································································································8

　　预处理································································································8SBR法生物处理···················································································8污泥处理·····························································································9

　　五、工艺设计及设备选型············································································································9

　　格栅井································································································9调节池································································································9SBR池·····························································································10污泥浓缩池·························································································11污泥脱水系统······················································································11设备房······························································································12第三项经济分析······························································································12

　　一、价格概算······························································································································12二、运行费用分析······················································································································13

　　主要指标···························································································13运行费用分析·····················································································13

　　胶州市XXX镇水处理厂工艺方案　　第2页共14页

　　第一项概述

　　一、概述

　　北京XXXXX工程有限公司是中国XXXXX集团公司的直属企业，技术力量雄厚，拥有经验丰富的研究员、高级工程师，从事环保技术的研究，新产品的开发和设计，环境保护设施的运