永修县污水处理厂设计

永修县污水处理厂设计摘要水资源是大自然赋予人类的最宝贵财富，但是随着人类社会的不断发展，污水被任意的排放，给原本纯净的水资源带来了严重的污染问题。此次设计方案将依据江西省某镇标准、气候特点、生活污水水质特征和解决规定，对污水厂开展前期设计。根据对多种污水处理方法的数据分析，明确选用加工工艺较为简单、总水力停留的时间短、出水水质好并且不添加氮源的AAO工艺解决县生活污水，设计规模为10000m/d。此次设计方案必须清除BOD、SS、、p等，出水水质需要达到《城镇污水处理站污染物排放标准》(GB18918-2002)里的一级A规范。文中主要介绍了某县生活污水处理渗水水质和污水处理流程、工厂平面布置、关键构筑物规格前期设计及废水处理构筑物测算。关键词：污水处理、AA0工艺、工程计算ABSTRACTWater resources are the most precious wealth given to mankind by nature,butwith the continuous development of human society,sewage is arbitrarilydischarged,which brings serious pollution problems to the original pure waterresources.This design is a preliminary design of sewage treatment plant based on thegeographical conditions,climate characteristics,domestic sewagequalitycharacteristics and treatment requirements of a county in Jiangxi.After comparisonand analysis of various sewage treatment methods,it is decided to adopt the AAOprocess with relatively simple process,short total hydraulic retention time,goodeffluent quality and no external carbon source to treat the domestic sewage of acounty,with a design scale of 10000m3/dBOD,SS,N,P,etc.shall be removed in this design,and the effluent quality shallmeet the Class A standard in the Discharge Standard of Pollutants for Urban SewageTreatment Plants(GB18918-2002).This paper mainly introduces the quality ofdomestic sewage in and out of the county,the process flow of sewage treatment,thelayout of the plant area,the preliminary design of the size of the main structures andthe calculation of the sewage treatment structures.Keywords:sewage treatment,AAO process,engineering calculation目录第一章设计概况.71.1设计依据..71.1.1设计原则.71.1.2设计规范.71.1.3依据资料.71.2设计任务书.…71.2.1设计处理规模71.2.2原水水质.71.2.3水质处理目标81.2.4设计任务.81.2.5基本要求..91.2.6图纸要求第二章处理工艺的选择.102.1工艺的比较..102.2AAO工艺的原理.102.3工艺流程图44444444444.112.4污水处理厂的总平面布置原则112.5高程布置原则.11第三章工艺设计…133.1格栅池.…133.2结构参数133.3集水池..133.4沉砂池143.5生化池.143.6配水井..153.7沉淀池.153.8消毒池16第四章污水处理构筑物的计算184.1粗格栅184.2集水池194.3细格栅...19