CASS工艺污水处理厂设计计算书VIP专享VIP免费

毕业设计学号：xx学院毕业设计计算书设计题目：广州市某区污水处理厂设计设计编号：学院：专业：班级：姓名：指导教师：完成日期：答辩日期：广州市某区污水处理厂设计学生姓名：指导教师：（台州学院建筑工程学院，2008级给水排水工程2班）摘要：本设计主要是广州市某区污水处理厂的设计，该污水厂出水水质要求达到《城镇污水处理厂污染物排放标准》(GB18918—2002)一级A标准和绿化水质标准，经过对可行的两种处理工艺CASS工艺与氧化沟工艺的比较，最终采用现行的SBR变形形式CASS工艺。CASS工艺主体部分采用圆形利浦罐形式，污水从内圆向外流，从内到外依次是选择器、厌氧区，好氧区，通过改变CASS池的循环周期来达到氮磷的最佳去除。该污水厂设计的构筑物有平流沉淀池，格栅，提升泵房等构筑物。污泥经过污泥浓缩后再经过消化池消化处理，最后再外运。最后在污水厂平面布置的形式上采用《给排水设计手册》相关规定。关键词：污水处理厂；CASS；平流沉砂池AsewagetreatmentplantdesigninadistrictofGuangzhouStudent:Adviser:WangZhiyong(CollegeofCivilEngineeringandArchitecture，TaizhouUniversity)Abstract:ThedesignismainlytoasewagetreatmentplantinGuangzhou.ThewaterqualitydischargedofthesewagetreatmentplantmustachieveattheDegreeAandthestanderofGreeningwaterqualityinthe“Urbansewagetreatmentplantpollutantdischargestander(GB18918-2002)”.Finally,weadoptthecurrentSBRdeformationformofCASSprocessaccordingtothecomparisonofthefeasibletwoprocessingtechnologyofCASSprocessandoxidationditchprocess.ThebodyoftheCASSprocessadoptsthecircularPhilipscansformsandthesewageisfromtheinnercircletobeout.Theselector,theanaerobiczone,andanaerobiczoneisinlinefromtheinnertooutside.AndtheremovalofnitrogenandphosphorusisbychangingtheCASScellCycle.Therearehorizontalflowsedimentationpool,grille,pumpingstationinthestructureofthesewageplantdesign.Thecondensedsludgeneedtohandleinthesludgedigesterbeforesendingout.Atlast,theformofthesewageplantlayoutadoptstherelevantruleoftheWatersupplyanddrainage.Keywords:Sewagetreatmentplant;CASS;Horizontalflowsedimentation目录中文摘要.....................................................................................................................................I英文摘要....................................................................................................................................II1引言..........................................................................................................................................11.1设计任务及依据............................................................................................................11.1.1设计任务..............................................................................................................11.1.2设计依据..............................................................................................................11.2设计水量、水质、出水要求及该污水厂设计规模....................................................11.2.1污水量..................................................................................................................21.2.2污水水质..............................................................................................................21.2.3出水要求..............................................................................................................21.2.4工程设计规模......................................................................................................22工艺设计方案的确定.......................................