复合垂直流人工湿地脲酶和磷酸酶活性与黑臭河水净化效果_英文_崔伟

ActivitiesofUreaseandPhosphataseinIntegratedVerticalFlowConstructedWetlandandPurificationEffectofBlackandMalodorousRiverCUIWei1,ZHANGYong2,HUANGMin-sheng1＊1.SchoolofResourceandEnvironmentalSciences,EastChinaNormalUniversity,Shanghai200062;2.SchoolofEnvironmentalandEner-gyEngineering,AnhuiUniversityofArchitecture,Hefei230022Abstract[Objective]Theactivitiesofureaseandphosphataseinintegratedverticalflowconstructedwetlandandpurificationeffectofblackandmalodorousriverwerestudied.[Method]Honeycombstoneandsoftfillerwereusedasmatrix,thebiologicalgridintegratedverticalflowconstructedwetlandsystemwasbuilttostrengthentreatmentforblackandmalodorousriver,andtheactivitiesofureaseandphosphataseoftwofillersindifferentfunctionalareasofconstructedwetlandweretestedtostudythefilmformationpropertyoftwofillersindifferentfunctionalareas.[Result]Bothureaseandphosphataseactivitiesonbiofilmofsoftfillerweresignificantlyhigherthanonbiofilmofhoneycombstonefiller;indica-tingthatchoosingsoftfillerwasmoreadvantageoustothegrowthofbiofilm;andureaseactivityhadsignificantcorrelationwithtotalnitrogenre-movalrate,whilephosphataseactivityhadnosignificantcorrelationwithtotalphosphorusremovalrate.[Conclusion]Thisstudyprovidedevi-dencesforutilizingtheactivitiesofureaseandphosphatasetoevaluatethepurificationeffectofblackandmalodorousriverandchooseappropri-atefiller.KeywordsIntegratedverticalflowconstructedwetland;Urease;Phosphatase;Blackandmalodorousriver;PurificationeffectReceived:February8,2011Accepted:July25,2011SupportedbyNationalMajorScienceandTechnologyProjects(2009ZX07317-006)＆NationalMajorScienceandTechnologyPro-jects(2009ZX07317-009).＊Correspondingauthor.E-mail:mshuang@des.ecnu.edu.cnTheenvironmentalqualityofurbanriverinChinahassharplydeclinedinthepast20years,thewaterqualityofthevastmajorityofriverbelongtopoorClassV,andthephe-nomenonofblack-odorriversisincreasinglygrowing[1].Itnotonlyimpedesthesustainabledevelopmentofeconomyandsociety,butalsoseriouslyaffectsthehealthandlivesofresi-dentsalongtheriver