不同人工湿地填料对水体中总磷的吸附特性分析邹新

20113361248－1251http//xuebao．jx[e-mail]121*221．3300292．/330022、、、。4。、、。4、、、。。X52A1000－2286201106－1248－04ThePhosphorusAdsorptionCharacteristicsofDifferentFillingsinArtificialWetlandZOUXin1JIANMin-fei2SHIXiao-yan1*XUPeng-fei2ZHOUXue-ling21．JiangxiAcademyofEnvironmentScienceNanchang330029China2．CollegeofLifeScienceJian-gxiNormalUniversityJiangxiProvincialKeyLabofProtectionandUtilizationofSubtropicalPlantResourcesNanchang330022ChinaAbstractInthisstudythephosphorusadsorptioncharacteristicsoffourfillingsincludedslimyshaleblackshalehoneycombcinderandriversandwhichwereusedintheconstructedwetlandwerestudiedbyiso-thermaladsorptionexperimentandadsorptionkineticsexperiment．Theresultsoftheisothermaladsorptionex-perimentshowedthatthephosphorusadsorptioncapacityofthefourfillingsincreasedastheinitiativeconcen-trationofthephosphateincreasedandthephosphorusadsorptioncapacityofslimyshaleandhoneycombcin-derwasmuchlargerthanthatofblackshaleandriversand．Intheexperimentofadsorptionkineticsthere-sultsofthecurveindicatedthatthecharacteristicsofthephosphorusadsorptionkineticsinthefourkindsoffillingswerethesame．Atthebeginningtimethephosphoruswasabsorbedveryfastinthedifferentfillingsandthenslowdownuntiltheadsorbancereachedtheadsorptionequilibrium．Theorderofthephosphorusadsorp-tioncapacityinthefourfillingswasthathoneycombcinder＞slimyshale＞riversands＞blackshale．There-sultsindicatedthattheefficiencyofhoneycombcinderandslimyshaleweremuchbetterthanthatoftheothertwofillingswhenbeingusedinremovalphosphorus．2011－09－232011－11－01GJJ10403、2008188、2009ZX07211-0012010AE007001974—[e-mail]*[e-mail]。6Keywordsartificialconstructedwetlandfillingsphosphorusadsorptioncharacteristicsconstructedwetlands、、、、、、、－1。“——”、、、、、2－3。4－5。6。、、7－8。“”“”9－10。、、、、、、、、11－13、。。4。11．100000249、UV-2100－UNICO、WGL－45B、TGL－16G、WXJ－Ⅲ、SCS-24、Varian725-ES、BELSORP-miniⅡ、HOR-IBALA-950。1．222。60105℃2h。Varian725－ESBELSORP-miniⅡHORIBALA-950。1．3105℃2h605g100mL。KH2PO420mL。225℃170r/min24h30min3000r/min10minTP143。1．4105℃2h6010g100mL。20mL100mg/LKH2PO425℃170r/min2481218303648h3000r/minP2．33。22．141。2Ca25%SiSi。42。·9421·3314Fig．1Thephosphorusadsorptionisothermcurveoffourfillings2Fig．2Effectofinitialconcentrationonefficiencyofphosphorusremoval14Tab．1Chemicalelementscontentofthefourfillings%FillingnameChemicalelementsFeAlSiMgCaKNaSlimyshale0．1310．2950．5366．72333．3510．02080．039Blackshale7．5317．01621．6403．9515．9950．8781．340Honeycombcinder3．52713．96021．7700．4642．1142．1080．627Riversand1．3134．34029．5600．1750．1442．7010．23524Tab．2PhysicalpropertiesofthefourfillingsFillingname/Granulardiameter/nmMeanaperture/m2·g－1Specificarea/%Porosity/g·cm－3DrycapaucitySlimyshale601．7880．28648．327．834Blackshale602．1060．12850．241．481Honeycombcinder602．0240．27943．210．709Riversand601．9520．77558．622．6462．21。14。。150mg/L。2。50mg/L。·0521·634Fig．3Thephosphorusadsorptionkineticcurveoffourfillings2．343。43、、、。4、、4h12h。12～48h。115—124。314150mg/L。4、、、。250mg/L。。34、、。、、、。4。、。5、COD。1．—J．200624176-78．2LiXFJiangCC．ConstructedwetlandsystemsforwaterpollutioncontrolinNorthChinaJ．WatSciTech1995323349-356．3．J．1998175232-234．4．J．200410513-16．5．J．2003224454-457．6．4J．2006321137-40．7．J．200526151-55．8．COD、Zn2+J．199584276-283．9．J．20045671-75．10．J．2006226985-988．11．5－J．2008248232-235．12．4J．20104144-48．13．J．20062327-11．14．M．4．2002246-248．·1521·