集成型人工湿地系统处理北京郊区校园生活污水的中试试验研究_英文_姜冰冰

PilotTestonTreatmentofBeijingSuburbCampusSewagebyIntegratedArtificialWetlandSystemJIANGBing-bing，HONGJian-ming*，WANGFei-yu，RUANJing-jing，TANYue-chen，LIJingCollegeofLifeScience，CapitalNormalUniversity，Beijing100048，ChinaAbstractApilottestiscarriedouttotreatBeijingsuburbcampussewagebyusingintegratedconstructedwetlandsystem，whichcombinesthreesystemsthataremulti-levelcomplexconstructedwetlandsystem，buriedintegrationpretreatmentsystemandwetlandlandscapesystem．Resultsshowthattheintegratedsystemhasagoodpollutantremovalefficiency:CODismainlyremovedintheintegrationpretreatmentsystemwithanaver-ageremovalrateof96．87%;asNH4-N，TNandTParemainlyremovedinthemulti-levelcomplexconstructedwetlandsystem，theaveragecon-centrationsineffluentofCOD，NH4-N，TNandTPare45．58，19．51，31．9and1．49mg/L，respectively;theWetlandlandscapesystemalsoplaysaroleofdepthprocessing，astheaverageconcentrationsineffluentofCOD，NH4－NandTPare13．33，0．34and0．53mg/L，respectively．KeywordsSewage，Artificialwetland，WetlandlandscapeReceived:June17，2010Accepted:October22，2010SupportedbySubtopicofNewCountrysideSewageComprehensiveTreatmentDemonstrationProjectofBeijingScienceandTechnologyPlans(D07040600770701-8;D08040600580803)．*Correspondingauthor．E-mail:fling112@163．comTheconstructedwetlandisanewkindofecologicalsew-agedisposaltechnologyrisingfromGermanin1970sandnowhasbeenwidelyappliedinEurope，AmericaandAfrica［1］．Fromtheseventhfive-yearplan，ournationbegantopayat-tentiontotheroleofconstructedwetlandtreatmenttechnology．What'smore，asartificialwetlandtreatmentsystemislowincost，easytomanage，couldbeautifylandscapeandhasgoodeffluentquality［2］，itismuchsuitabletobeappliedincountry-side，suburbs，residentialareawherethemanagementlevelislow，thequantityoftreatedwaterandvariationofwaterqualityaresmall［3］．Theconstructedwetlandcanbedividedintotwocategorieswhicharesurfaceflowandsubsurfaceflow．Atpresent，inAmericaandsomeothercountries，surfaceflowisgenerallyappliedwhileinournation，subsurfaceflowismostlyadopted．Subsurfaceflowofartificialwetlandcouldb