资源描述：
《《氧化沟外文翻译》word版》由会员上传分享，免费在线阅读，更多相关内容在应用文档-天天文库。
1、外文资料翻译Oxidationditches1.IntroductionOxidationditchandcontinuouscircularaerationtank,deformationisoneoftheactivatedsludgeprocess.OxidationditchsewagetreatmenttechnologyissuccessfullydevelopedbytheDutchinthe1950sandhealthengineering.PutintouseintheNetherlandsforthefirsttimesince1954.Dueto
2、itsgoodeffluentwaterquality,steadyoperation,convenientmanagementandothertechnicalcharacteristics,hasbeenwidelyusedbothathomeandabroadindomesticsewageandindustrialwastewatertreatment.Thetypesoftheoxidationditchhasbeenwidelyappliedatpresentinclude:pass,oxidationditch,theCarrouseloxidation
3、ditch,Mr.Belloxidationditch,Toxidationditch,threegroovetypeoxidationditch,andtheintegrationofDEtypeoxidationditchandoxidationditch.Theoxidationditchbecauseofthedifferencesonthestructureandoperation,soeachhasitscharacteristics.ThispaperwillmainlyintroduceCarrousel’sstructure,themechanism
4、oftheoxidationditch,theexistencequestionanditslatestdevelopment.2.ThestructureofCarrouseloxidationditchCarrouseloxidationditchisDHVCompanydevelopedin1967bytheDutch.OnthebasisoftheoriginalCarrouseloxidationditchDHVEIMCOit’spatentedintheUnitedStatesCompanyandcreatedtheCarrousel2000System,
5、realizesthehigherrequirementsofbiologicaldenitrificationandphosphorusremovalfunction.Byfartheworldhasmorethan850CarrouseloxidationditchandCarrousel2000Systemisrunning.Carrouseloxidationditchwithdirectionalcontrolofaerationandagitationdevice,themixturetransferhorizontalvelocity,whichwass
6、tirringthemixtureofcirculatingintheoxidationditchchannelsclosed.Oxidationditchhasspecialhydraulicflowstate,therefore,hasthecharacteristicsofboththecompletelymixedreactorandhasthecharacteristicofpushflowreactor,grooveexistsobviousdissolvedoxygenconcentrationgradient.Oxidationditchcrossse
7、ctionisrectangularortrapezoidal,planeshapeisoval,moregroovedepthisgenerally2.5~4.5m,widthdepthratiois2:1,alsohaveadepthofupto7m,ditchwateranaveragespeedof0.3m/s.Oxidationditchaerationmixingequipmenthavesurfaceaerator,aerationbrushorturntable,jetaerator,cathetertypeaeratorandris
