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1目录中英文摘要…………………………………………………………ChineseandEnglishabstract前言……………………………………………Foreword第一章：总论………………………………………………………………Firstchapter:Generalremarks第一节：工程背景……………………………………………………Firstsection:Projectbackground第二节：设计依据及设计原则………………………………………Secondsection:Designbasisandprincipleofdesign第二章：厂址选择及说明…………………………………………………Secondchapter:Factorysitechoiceandexplanation第三章：污水处理厂工艺设计……………………………………………Thirdchapter:Sewagetreatmentplanttechnologicaldesign第一节：污水厂设计规模……………………………………………Firstsection:Sewagefactorydesignscale第二节:污水处理程度确定………………………………………Secondsection:Sewagetreatmentdegreedetermination第三节:污水处理工艺方案设计…………………………………Thirdsection:Sewagetreatmentcraftprojectdesign第四章：处理厂构筑物的设计……………………………………………Fourthchapter:Treatmentplantconstructiondesign第一节：中格栅………………………………………………………Firstsection:Grill第二节：污水提升泵房………………………………………………2Secondsection:Thesewagepromotesthepumphouse第三节：细格栅………………………………………………………Thirdsection:Thingrill第四节：平流沉砂池…………………………………………………Fourthsection:Advectionsandcollector第五节：厌氧池………………………………………………Fifthsection:Tiresoftheoxygenpond第六节：卡鲁塞尔氧化沟……………………………………………Sixthsection:CarewSayreoxidationditch第七节：二沉池………………………………………………………Seventhsection:Twosinksthepond第八节：管式混合器………………………………………Eighthsection:Tubularmixer第九节：污泥提升泵房……………………………………………Ninthsection:Thesludgepromotesthepumphouse第十节：接触池……………………………………………Tenthsection:Contactpond第十一节：计量设备…………………………………………………11thsection:Measurementequipment第十二节：污泥脱水车间…………………………………………12thsection:Sludgedewateringworkshop第五章：污水处理厂的平面布置………………………………Fifthchapter:Sewagetreatmentplantplanearrangement第六章：污水处理厂的高程布置……………………………………Sixthchapter:Sewagetreatmentplantelevationarrangement第七章：工程概算…………………………………………………………第八章：人员编制…………………………………………………………Eighthchapter:Personnelorganization3第九章：毕业设计总结体会……………………………………………第十章：参考资料…………………………………………………………4中英文摘要中文摘要本次毕业设计是以相关的资料为依据,设计一座城市污水处理厂.其日处理量近期为2万立方米。由于城市污水的主要成分为有机物,所以本次设计采用了氧化沟工艺.氧化沟，又称循环曝气池，类似活性污泥的延时曝气法，近年来我国中小城市污水处理厂采用这一工艺较多。氧化沟不设初沉池，处理设施大大简化。氧化沟具有传统活性污泥法的特点，有机物去除率高，也具有脱氮功能。氧化沟这种高效、简单的特点，适合大、中、小型污水处理。氧化沟目前常用的有卡鲁塞尔氧化沟、奥贝尔氧化沟、三沟及双沟等交替式氧化沟等几种形式，其中以前两种更为常用。氧化沟的共同特点是污水在循环水池中流动，曝气方式主要采用表曝方式（近年来，也有鼓风曝气方式的氧化沟，也被称作氧化沟池型的普曝，结合了氧化沟及微孔曝气的优点）。氧化沟内缓慢流动时大量有机物被去除.处理后的水达到国家规定的二级排放标准.允许直接排放入河流和湖泊或用于农田灌溉.处理后的活性污泥经脱水后用于肥料.本次设计在构想中充分考虑了环境效益与经济效益之间的联系,尽量最大限度使两者协调.5ＡＢＳＴＲＡＣＴThisgraduationprojectistaketherelatedmaterialasthebasis,designsacitysewagetreatmentplant.Itsdayprocessloadinthenearfuturewillbe20,000cubicmeters.Becausethecitysewageprincipalconstituentisanorganicmatter,thereforethisdesignhasusedtheoxidationditchcraft.Oxidationditch,alsocalledthecirculationaerationtank,thesimilaractivesludgetimedelayaerationlaw,OurcountrySmallandmedium-sizedtownandcitySewagetreatmentplantusedthiscrafttobemanyinrecentyears.Theoxidationditchdoesnotsupposeinitiallysinksthepond,processesthefacilitybigsimplification.Theoxidationditchhasthetraditionalactivesludgemethodcharacteristic,theorganicmatterremovesrateishigh,alsohasthedenitrogenationfunction.Oxidationditchthiskindhighlyeffective,simplecharacteristic,suitsthelarge-scale,mediumandsmall-scalesewagetreatment.TheoxidationditchcommonlyusedhasCarewatpresenttheSayreoxidationditch,theAustriaBelloxidationditch,threeditchesandthedoubleditchandsooninturn-liketheoxidationditchandsoonseveralforms,inwhichbeforehandtwokindsmorecommonlyused.Theoxidationditchcommoncharacteristicisthesewageflowsinthecirculationbasin,theaerationwaymainlyusedisrevealedtheway(recentyears,alsohaddrumwindaerationwayoxidationditch,alsoiscalledastheoxidizedcitymoatPuinsolation,6unifiedoxidationditchandporeaerationmerit).Intheoxidationditchthesluggishflowingtimemassiveorganicmattersareremoved.Aftertheprocessingwaterachievedthecountrystipulatedtwolevelsdischargethestandard.Allowstodischargeintotheriversandthelakedirectlyorusesinthefarmlandirrigation.Aftertheprocessingactivesludgeusesinthefertilizerafterthedehydration.Thisdesignhadconsideredfullyintheconceptionbetweentheenvironmentbenefitandtheeconomicefficiencyrelation,asfaraspossiblemaximumlimitcausesbothcoordination.7前言舞钢市位于河南省中部，距省会郑州南则165公里，全市面积646平方公里，人口约32万，舞钢市不仅有近2600年文化历史，还是个新兴的工业城市，是目前中国唯一出产特宽特厚钢的生产基地，而且物产丰盛，山清水秀，人杰地灵，库容为1.2亿立方米的石漫滩水库像一颗灿烂的明珠镶嵌在舞钢市的大地上。随着舞钢市城乡建设和经济建设不断发展，城市人口的增长，生活污水水量不断增加，对境内河流，水库的污染日益严重，尤其是对石漫滩水库的污染直接影响到水库的开发与利用，也会影响到淮河流域的水环境。为此，舞钢市政府着眼未来，从可持续发展的观点出发，本着工农业发展与环境保护相同步的原则，在大力发展工农业生产和建设现代化城市的同时，致力于环境治理，提出对舞钢市的生活污水加以处理，达到国家要求的污水排放标准。这样做不仅能够保证社会经济与人类居住环境的协调发展，又实现了国务院对城市污水加以治理的要求，更是功在当代，利在千秋的明智之举。8ForewordWugangislocatedmiddleHenanProvince,isapartfromsouthprovincialcapitalZhengzhounotonlythen165kilometers,thewholecityarea646squarekilometers,thepopulation320,000,Wuganghasnearlyin2600approximatelytheculturalhistory,theemergingindustrialcity,isthepresentChinaonlyproducesextendstheespeciallythicksteelespeciallytheproductionbase,moreovertheproductissumptuous,beautifulscenery,thehumanoutstandingearthdeities,thestoragecapacityis120,000,000cubicmeterstonetidalflatreservoirlookslikeabrightpearltomountonWugang'searth.DevelopunceasinglyalongwiththeWugangcityandcountrysideconstructionandtheeconomicdevelopment,theurbanpopulationgrowth,thesanitarysewagewatervolumeincreasesun