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生态沟渠吸收氮磷效果研究（英文）.docx

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生态沟渠吸收氮磷效果研究（英文） ResearchonNitrogenandPhosphorusRemovalEfficiencyofEcologicalDitches Abstract Withthedevelopmentofagricultureandurbanization,theproblemofwaterpollutioncausedbynitrogenandphosphorushasbecomeincreasinglyprominent.Ecologicalditcheshavegraduallyemergedasaneffectivemeasuretomitigatethepollutionofnitrogenandphosphorus.Inthispaper,weconductedacomprehensivereviewontheresearchprogressofecologicalditchtechnologyintheremovalofnitrogenandphosphorus.Wesummarizedthemechanismsofnitrogenandphosphorusremovalinecologicalditches,includingmicrobialdenitrification,plantabsorption,andadsorptionbysedimentandsoil.Basedontheliteraturereview,weanalyzedtheinfluencingfactorsofnitrogenandphosphorusremovalefficiencyinecologicalditches,suchashydraulicretentiontime,vegetationtypes,andsoilcharacteristics.Furthermore,wediscussedthefuturedevelopmenttrendsofecologicalditchtechnologyinimprovingnitrogenandphosphorusremovalefficiency. Keywords:ecologicalditches,nitrogenremoval,phosphorusremoval,denitrification,plantabsorption 1.Introduction Withtherapiddevelopmentofurbanizationandindustrialization,thedischargeofpollutantsfromvarioussourceshascausedseriouspollutiontowaterbodies.Nitrogenandphosphorusareimportantnutrientsforplantgrowth,butexcessivedischargeofnitrogenandphosphorusintowaterbodieswillleadtoeutrophicationofwaterbodies,resultinginadeclineinwaterqualityanddamagetoecologicalsystems(Chenetal.,2009).Thedischargeofnitrogenandphosphorusfromfarmland,urbansewage,andindustrialwastewaterhasbecomeanimportantsourceofwaterpollution,whichseriouslyaffectsthesustainabledevelopmentoftheecologicalenvironment. Therefore,itisparticularlyimportanttodevelopeffectivemeasurestocontrolandreducenitrogenandphosphoruspollution.Inrecentyears,ecologicalditchtechnologyhasgraduallyemergedasapromisingmeasureformitigatingthepollutionofnitrogenandphosphorusinwaterbodies. 2.MechanismsofNitrogenandPhosphorusRemovalinEcologicalDitches Ecologicalditchesareatypeofartificialwetlandsystemthatsimulatesthenaturalecological