生物净水,脱氮除磷,除藻

参考文献：

［1］HAMMERDA．ConstrUctedwetlandsforwastewatertreatineni［M］．MunieiPalIndustrialandAghcultoral：LewisPublishersIne，

1989：5-20

［2］汤显强，黄岁樑．人工湿地去污机理及国内外应用现状［J］．水处理技术，2007，33（2）：9-13

［3］李杰，J］．中国给水排水，2008，24（9）：83-85钟成华，邓春光．厌氧池/人工湿地/生物塘系统处理奶牛养殖场废水［

［4］国家环境保护总局．水和废水监测分析方法（第4版）［M］．北京：中国环境科学出版社，2002

［5］李杰，J］．西南大学学报：自然科学版，2008（7）：42-46钟成华，邓春光，等．几种土壤与工业废渣的磷吸附特性研究［

［6］王爱萍，J］．四川环境，2005，24（2）：76-80周琪．人工湿地污水的研究［

StudyoftheEffectofSubstrataonRemovingNitrogenand

PhosphorusinConstructedWetland

WANGXiao-xue1，LIJie2，ZHONGCheng-hua1，

LIUJie1，XIAXiao-fang1

（1．SchoolofEnvironmentandBioengineering，ChongqingTechnologyandBusinessUniversity，

Chongqing400067，China；

2．EnvironmentProtectionBureauofNananDistrict，Chongqing400060，China）

Abstract：Constructedwetlandtreatmentofwastewaterisconductedbymixedsubstratabedoffuelashpluslimestoneanditseffectiscomparedwithsimplesubstratumbedoflimestone．Theresultsshowthatfuelashisastrongmatrixforabsorbingphosphorus，thatmixedsubstratainconstructedwetlandstuffedwithfuelashandlimestonecanobviouslyenhanceefficiencyforremovingphosphoruswhilefuelashcanbeusedasalkalisupplyfornitrogenremoval，andthatthemainphosphorusremovalmechanisminconstructedwetlandissubstrataadsorption，soincreasingtheamountofmatrixbyraisingpackingdepthcansignificantlyimprovetheremovaleffectofphosphorus．Becausethemainammonianitrogenremovalmechanismisnitrification-denitrification，dissolvedoxygeninconstructedwetlandisthekeyfactortorestrictammonianitrogenremoval，althoughraisingpackingheightofthematrixcanreinforcedenitrification，theoxygensupplycannotbeincreasedtoconsolidatenitrification，thus，ithaslittleeffectonammonianitrogenremoval．

Keywords：mixedsubstrata；constructedwetland；removalofnitrogenandphosphorus

责任编辑：田静