曝气生物滤池处理城镇污水论文

-I-学位论文曝气生物滤池处理城镇污水这是本人毕业时所写论文，希望有和我写同样题目的朋友，能通过大学论文答辩。如果你感觉这篇论文不错，那请你给我顶一下，在这里感谢大家。作者姓名：专业：学号：指导教师：完成日期：学校名曝气生物滤池处理城镇污水-II-摘要城镇污水主要为生活污水和工业废水的混合污水。目前城镇污水的排放已造成了对水环境生态系统的严重污染，做好城镇污水的处理及再生利用是主要任务之一，解决城镇污水对水环境污染的重要途径之一就是修建污水处理厂。本设计对SBR法、A2/O法、曝气生物滤池法工艺进行了比较，最终确定选用处理效果好、运行管理方便、投资省的曝气生物滤池工艺。该工艺中污水经过粗格栅、细格栅、旋流沉砂池、水解酸化池的一级处理，进入曝气生物滤池进行二级处理后。排出的污泥经过了生化处理较稳定，不需消化浓缩脱水外运，节省了投资。设计过程中通过对各构筑物的设计计算及附属构（建）筑物的设计选型，完成了主要构筑物旋流沉砂池、水解酸化池、曝气生物滤池出图及整个工厂的平面、高程布置，进而完成了污水厂的设计。关键词：城镇污水；水解酸化；上向流曝气生物滤池-III-TheFormatCriterionofMaster’sDegreePaperofDUTAbstractUrbansewageasthemainsewageandindustrialeffluentofsewagemixed.AtpresenturbansewagedischargehascausedthewaterenvironmentecosystemsseriouspollutionanddoagoodjobofurbansewagetreatmentandrecyclingisoneofthemaintasksandsolvetheurbansewagewaterpollutionisoneimportantwaytotheconstructionofsewageWatertreatmentplants.ThedesignoftheSBR,A2/O,BiologicalAeratedFiltertechnologyofthelaw,thefinalchoiceoftreatmenteffect,andfacilitatetheoperationandmanagement,investmentintheBiologicalAeratedFilterTechnology.Theprocessofsewagethroughroughgrid,smallgrille,swirldesiltingpool,poolacidhydrolysisoftheprimarytreatment,intotheBiologicalAeratedFilteraftersecondarytreatment.Afterthesludgefromthebiologicaltreatmentmorestable,notdigestcondenseddirectlydehydrationSinotrans,asavingofinvestment.ThroughtheprocessofeffluenttreatmentcanbeachievedGB18918-2002inaBstandards,andremovalofthewaterqualityindicatorswereCODcr:76%,BOD:86.7%,SS:86.7%,NH3-N:80%,TN:50%,TP:62.5%.Throughthevariousstructuresofthedesignandcalculationandsubsidiarystructure(built)tobuildthedesignselection,completedthemainstructureswirldesiltingpool,poolacidhydrolysis,BiologicalAeratedFiltertoplanandplantthewholeplane,elevationlayoutandthencompletedawastewatertreatmentplantdesign.KeyWords：BiologicalAeratedFiltertechnologyofthelaw；Urbansewage；facilitatetheoperation曝气生物滤池处理城镇污水IV目录摘要...................................................................................................................................IIAbstract....................................................................................................................................III引言...............................................................................................................................-1-1绪论...................................................................................................................................-2-1.1研究的目的和意义.................................................................................................-2-1.2国内外污水处理现状及发展.................................................................................-3-1.2.1国外城市污水处理发展状况..............................................................................-3-1.2.2我国城市污水处理发展状况..............................................................................-4-2设计概述...........................................................................................................................-6-2.1污水处理厂设计资料.............................................................................................-6-2.2污水处理工艺比较................................................................................................-6-2.2.1SBR工艺.....................................................................................................-7-2.2.3曝气生物滤池工艺......................................................................................-9-2.2.4推荐方案....................................................................................................-11-2.2.5曝气生物滤池工艺流程图........................................................................-12-3水解（酸化）-上向流曝气生物滤池工艺概况............................................................-13-3.1水解（酸化）-上向流曝气生物滤池工作原理.................................................-13-3.2水解（酸化）-上向流曝气生物滤池的优点......................................................-13-3.2.1水解（酸化）曝气生物滤池的优点........................................................-13-3.2.2向上流曝气生物滤池的优点....................................................................-14-4构筑物的设计计算.........................................................................................................-16-4.1溢流井的设计.......................................................................................................-16-4.2粗格栅的设计.......................................................................................................-16-4.2.1设计参数....................................................................................................-16-4.2.2设计计算....................................................................................................-16-4.2.3附属设备的选型.......................................................................................-19-4.3调节池的设计.......................................................................................................-19-4.3.1设计计算....................................................................................................-20-4.3.2附属构筑物选型...................................................................................