500吨每天小区生活污水处理与回用设计.doc
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- 500 每天 小区 生活 污水处理 设计
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1、摘要建筑小区主要是指居住区、疗养院、商业中心、机关学校等具有几种(或一种)功能的、相对独立的区域,其排水系统一般不在城市市政管网覆盖范围之内。小区污水属于生活污水范畴,一般水量较小,在我国通常把水量小于4000m3/d的污水处理称为小区污水处理。小区污水一般水量、水质变化较大,污染物浓度比城市污水低,可生化性好,因而易于处理,并通过消毒处理可回用,节约水资源。本设计要求处理水量为500t/d的小区生活污水(以居住小区为背景),设计方案采用序批式间歇活性污泥法(SBR)。SBR技术的核心是SBR反应池,该池集均化、初沉、生物降解、二沉池等功能于一池,无污泥回流系统。应用序批式活性污泥法工艺,使出
2、水水质达到城镇污水处理厂新污染物排放标准(GB18918-2002)标准的要求,并通过消毒回用,达到“零”排放目的。可作为中型楼盘生活污水处理工程的技术参考。关键词:小区生活污水,SBR,回用53AbstractCommunity buildings are mainly residential, nursing homes, commercial centers, schools and other institutions have several (or a) functional. relatively independent of the region, And its draina
3、ge system is generally not of urban pipe network coverage areas. Community sewage belongs to the urban wastewater, The flux of sewage treatment less than 4000 m3/d is called community sewage treatment. The flux and water quality of community sewage change much and pollutant concentration of communit
4、y sewage is lower than urban wastewater. The community sewage is in good biodegradability and can be easily dealed with. Then it can be reused by disinfection to save water resources.The design requirements is to treat the 500 t/d water flux of the community sewage (Residential Area background). SBR
5、 is the core technology SBR pool, The pool is set, the early Shen, biodegradable, two sedimentation tanks, and other functions in a pool, returning without sludge system.Application of SBR process using water to New Pollutants Emission Standard of Urban Wastewater Treatment Firm (GB18918-2002) and t
6、hrough the use of disinfection to achieve zero emission purposes. This method can provide technical references for the medium-sized flats sewage treatment.Key words: Quarter sewage, SBR, Reuse目录1文献综述11.1题目的的背景和目的11.2概要11.3污水处理方法21.3.1氧化沟21.3.2序批式活性污泥法(SBR)41.3.3A/O及A2/O处理工艺41.3.4膜处理技术51.3.5适合于中小型污水处
7、理厂的除磷脱氮工艺的比较81.4小区生活污水的回用技术91.4.1小区污水回用技术现状91.4.2膜技术101.4.3膜生物反应器(MBR)101.5小区生活污水回用技术的思考101.5.1回用技术的可靠性101.5.2回用设施的智能化管理101.5.3回用水的安全性111.5.4回用设施的环境协调112设计思路122.1设计资料122.1.1确定污水处理量122.1.2污水进出水质122.2设计规范和标准122.3建设原则133处理工艺流程的确定143.1污水处理工艺确定143.1.1小区污水处理站特点143.1.2小区污水处理工艺比较143.1.3选用SBR工艺原因153.2污泥处理工艺确
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