污水处理厂毕业设计说明书

毕业设计说明书题目:达州市某污水处理厂工艺设计学院(直属系):年级、专业:姓名:学号:指导教师:完成时间:毕业设计说明书摘要........................................................................3引言........................................................................51设计总则...................................................................51.1设计范围.............................................................51.2设计依据.............................................................61.3设计原则.............................................................62工程概况...................................................................62.1地理位置.............................................................62.2自然条件.............................................................72.3设计规模.............................................................72.4设计进出水水质.......................................................73工艺的比选.................................................................73.1污水特点.............................................................73.2工艺选择.............................................................83.3处理工艺流程.......................................................124工艺设计计算..............................................................124.1设计流量的计算.....................................................124.2中格栅.............................................................134.3集水池提升泵房.....................................................154.4细格栅.............................................................174.5沉砂池.............................................................194.6A2O池..............................................................204.7二沉池.............................................................284.8往复式隔板絮凝池...................................................314.9普通快滤池.........................................................354.10消毒池............................................................374.11污泥泵房...........................................................384.12污泥处理设计......................................................38毕业设计说明书4.13加药间............................................................415其他辅助构筑物............................................................416污水处理厂平面布置.......................................................426.1平面布置原则........................................................426.2具体平面布置........................................................437污水处理厂高程布置.......................................................447.1各构筑物水头损失hg.................................................447.2污水高程布置........................................................457.4污泥高程布置.......................................................477.5各构筑物标高........................................................488建设投资概算..............................................................498.1主要设备报价清单....................................................508.2工程总投资..........................................................518组织管理.................................................................528.1组织机构和定员.....................................................528.2建设进度...........................................................529运行成本、环境效益分析....................................................539.1运行成本...........................................................539.2环境效益............................................................5410总结与体会...............................................................54致谢.......................................................................54参考文献...................................................................55毕业设计说明书摘要本次设计项目是达州市某污水处理厂工艺设计工艺设计。城镇污水是最常见的污水种类。城镇污水的特点主要是有浮渣，可生化性好，水量大等。本次设计综合考虑城镇污水的水质特征，排水要求，工程项目投资，运营管理等相关因素，结合厂区的污水水质水量的特点，决定采用A2O作为二级处理生化处理部分，再设计“絮凝+过滤”作为深度处理单元，以保证达到排放标准。本设计污水的日处理规模为100000m3/d，设计处理后出水达（GB8996-1996）《污水综合排放排放标准》一级A标。在设计中将进行工艺选择，方案论证，各主要构筑物及附属建筑物的设计计算，对应设备的选型，工程经济投资估算，工程图纸的绘制等相关工作，最终完成本次设计。关键词：城镇污水；A2O；脱磷除氮；絮凝深度处理；SummaryThedesignprojectisDazhouasewagetreatmentplantprocessdesignprocessdesign.Urbansewagewateristhemostcommonspecies.Themaincharacteristicofurbanwastewaterisscum,goodbiodegradability,waterandlarge.Thedesignfeaturestheurbansewagewaterqualityintoaccount,therelevantfactorsinthedrainagerequirements,projectinvestment,operationandmanagement,combinedwiththecharacteristicsoftheplanteffluentwaterqualityandquantity,decidedtoadoptA2Obiologicalsecondarytreatmentprocessaspartofthere-engineeringflocculation+filtrationAsthedepthoftheprocessingunit,inordertoguaranteetheachievementofemissionstandards.Thedesignofsewagedailyprocessingscaleis100000m3/d,afterthedesignofthetreatedeffluent(GB8996-1996)Integratedwastewaterdischargeemissionstandards,anAstandard.Inthedesignprocesswillbeconductedtoselect,designverification,themajor毕业设计说明书structuresandoutbuildingscalculation,selectionofthecorrespondingequipment,engineeringeconomicinvestmentestimation,engineeringdrawings,drawingandotherrelatedwork,thefinalcompletionofthedesign.Keywords:urbansewage;A2O;dephosphorizationdenitrification;flocculationdepthoftreatment;引言城镇污水的水质特征是城市污水中90%以上都是水，其余的是固体物质，主要有四类污染物，分别是病原体（包括细菌、