安达市污水处理长工艺设计(倒置AAO)

I黑龙江东方学院毕业论文（设计）题目：安达市污水处理厂设计学生姓名学号专业环境工程班级2009级本科指导教师学部答辩日期2013年5月18日黑龙江东方学院本科生毕业论文（设计）I-I-安达市污水处理厂设计摘要本次毕业设计的题目为安达市某污水处理厂工艺设计。该污水处理厂工程，规模为4.5万吨/日，设计主要任务是根据该市污水性质、排污规模的要求完成污水处理厂初步设计和单项处理构筑物设计。其中污水处理厂初步设计要完成污水处理厂总平面图一张及污水处理厂污水与污泥高程图一张；单项处理构筑物设计中，主要是完成主体处理构筑物平面图及剖面图及部分大图样。该污水处理厂的污水处理流程为：污水由市政排水管网经格栅由泵房提升进入到曝气沉砂池，进入倒置AAO反应池，进入辐流式二沉池，进入消毒接触池，最后出水；污泥的流程为：从二次沉淀池池排出的剩余污泥进入回流污泥泵房，再由污水泵送入浓缩池，再进入储泥池，由浓缩污泥泵房提升送入污泥脱水间，最后泥饼外运处置。污水处理厂处理后的出水优于国家污水综合排放标准（GB)中的一级B标准。关键词：倒置AAO工艺污水污泥黑龙江东方学院本科生毕业论文（设计）II-II-AndasewagetreatmentplantdesignAbstractThegraduationdesigntopicforasewagetreatmentplantprocessdesignofAndacity.Thesewagetreatmentplantproject,thescaleof45000tons/day,maintaskistodesignaccordingtotherequirementofsewagescalesewagenature,thecompleteddesignplantpreliminarydesignandindividualtreatmentbuildingsewagetreatment.Thesewagetreatmentplantpreliminarydesigntocompletethesewagetreatmentplantgenerallayoutandsewagetreatmentplantsewageandsludgeelevationmapa;singleprocessingstructuresinthedesign,mainlyisthecompletionofthemainconstructionplanandprofileandpartofthelargepattern.Thesewagetreatmentplantsewagetreatmentprocess:thesewagefromthemunicipaldrainagepipenetworkbythegridbythepumphouseascendintotheaeratedgritchamber,enterintoareverseAAOreactionpool,intotheradialflowsedimentationtankintotwo,disinfectioncontacttank,thefinaleffluent;sludgeprocess:thesludgedischargedfromthetwosecondarysedimentationtank.Intothereturnsludgepumpingstation,thesewagepumpintoconcentratedpool,andthenintothemudstoragetank,concentratedsludgepumpliftbyintothesludgedewatering,thelastcakeSinotransdisposal.Wastewatertreatmentplanttreatedwaterisbetterthanthenationalintegratedwastewaterdischargestandard(GB)inanBstandard.Keywords：TheinvertedAAOprocessSewagesludge目录摘要.........................................................................................................................................IAbstract.................................................................................................................................II第1章项目工程概况............................................................................................................11.1概述...........................................................................................................................11.2工程规模和处理水质要求.......................................................................................21.3污水处理程度计算...................................................................................................3第2章工艺方案选择........................................................................................................42.1设计方案的选择.......................................................................................................4第3章主要构筑物设计计算............................................................................................83.1污水处理构筑物的设计...........................................................................................83.1.1格栅.....................................................................................................................83.1.2污泥提升泵房...................................................................................................113.1.3沉砂池...............................................................................................................113.1.4倒置A2O反应池设计计算..............................................................................163.1.5二次沉淀池.......................................................................................................263.2污泥处理及消毒构筑物.........................................................................................303.2.1消毒接触池.......................................................................................................303.2.2污泥浓缩池.......................................................................................................333.2.3贮泥池..................................................................................................................37第4章污水厂平面及高程布置......................................................................................404.1平面布置原则.........................................................................................................404.1.1各处理单元构筑物的平面布置.......................................................................404.1.2厂区平面布置...................................................................................................404.2污水厂高程布置.....................................................................................................404.2.1布置原则...........................................................................................................404.2.2污水高程布置...................................................................................................415.1工程预算.................................................................................................................445.1.1构筑物及设备预算...........................................................................................445.1.2附属设备及预算......................................................