聚合氯化铝与黏土的改性对富营养水体磷和蓝藻的同步去除-周庆

3411201511ENVIＲONMENTALCHEMISTＲYVol．34No．11November20152015414．*2012ZX07103-0022015BAD13B04BK20130730．＊＊[e-mail]10．7524/j．issn．0254-6108．2015．11．2015041401．J．201534112059-2066ZHOUQingHANShiqunYANShaohua．SimultaneousremovalofphosphorusandalgaeineutrophicwatersbymodifiedcomplexesofaluminiumpolychloridandclayJ．EnvironmentalChemistry201534112059-2066*周庆韩士群＊＊严少华210014、ATPACAT、PAC、AT+PACPHAT、．PHATPAC99．14%±0．31%AT+PACPHATPAC71．10%．PACIPDTPPHATOPPP．PHATAl3+Cl－．PHATPACAT+PAC97．15%±1．35%．PHATATAT+PACAT19．10%11．13%．PHATAT、Al．PHAT、．．SimultaneousremovalofphosphorusandalgaeineutrophicwatersbymodifiedcomplexesofaluminiumpolychloridandclayZHOUQingHANShiqun＊＊YANShaohuaInstituteofAgriculturalＲesourcesandEnvironmentalSciencesJiangsuAcademyofAgriculturalSciencesNanjing210014ChinaAbstractInordertoachievesimultaneousremovalofphosphorusandalgaedirectlyineutrophicwatersthecompositemodificationofaluminiumpolychloridandclaywasadopted．TheremovalefficiencyofphosphorusandalgaetheresidualriskofaluminumionandchlorideionandtheirmechanismwerediscussedpreliminarilyamongtherawmaterialATorPACthedirectcomplexesAT+PACandthemodifiedcomplexesPHAT．OurresultsindicatedthatthetotalphosphorusremovalefficiencyofPHATwasupto99．14%±0．31%．ItwasashighasPACbutsignificantlybetterthanAT+PAC．ThecostofPHATwasonly70．10%ofPAC．PACwassuperiorintheremovalofIPandDTPwhilePHATwassuperiorintheremovalofOPandPP．TheresiduesofAl3+andCl－afteradditionofPHATwereinlinewiththestandardfordrinkingwater．ＲemovalrateofalgaebyPHATwasupto97．15%±1．35%．ItwassignificantlyhigherthanthatbyPACandAT+PAC．ThealgalremovalrateofPHATinlowconcerntrationofcyanobacteriawasnotsignificantlydifferentfromthatinhighconcerntration．Theresultsofspecificsurfaceareameasurementshowedthatsinglepoint206034specificsurfaceareaofATfromPHATincreasedby19．10%incomparisonwithAT+PAC．PoresurfaceareaofATfromPHATincreasedby11．13%incomparisonwithAT+PAC．ThecontentofAlinATfromPHATobviouslydecreasedafterapplicationineutrophicwater．ItwasspeculatedthatthebridgingandcapturefunctionwasenhancedbythecombinationofstructureoptimizationofclayandcomplexprecipitationofactivealuminumwhichledtoPHAT'shighremovalefficiencyofphosphorusandalgae．Keywordsaluminiumpolychloridclaycompositemodificationeutrophicwatersphosphorusremovalalageremoval．2080、、《》GB3838—2002Ⅴ．1．2．．、．、、、．3．、、、4．5．．6．78．9-10、CTAB11TN．12、8、13、13、、、．、、、、．11．11KH2PO4、K2S2O8、、NH46Mo7O24·4H2O、K2Sb2C4H2O62、Na2CO3、HCl、HNO3、CH3COOH、CH3COONa·3H2O、NaOH、ZnCl2、PbNO32、C10H14N2Na2O8·2H2O、CTAB、AgNO3、K2CrO4、、、、PACAl2O315．7%93．56%．2MicrocystisaeruginosaFACHB-912．28℃1000lx12h∶12h0．1×Hogland．3AT100．11206142800UNIQHJ-6AS4800ⅡFESEMHitachiASAP2020Micromeritics．1．21ATPACATPAC1∶1W/W70%、PHAT．2、TP4．0mg·L－1AT、PAC、AT+PAC1∶1W/W、PHAT0、100、200、300mg·L－1AT、PAC、AT+PAC1∶1W/W、PHAT．1000mL．450r·min－11min150r·min－110min30min．TP1．0mg·L－1PAC、AT+PAC1∶1W/W、PHAT0、25、50、75、100mg·L－1．．3TP1．0mg·L－1M．aeruginosa1．75×106cells·L－13．51×106cells·L－112h．AT、PAC、AT+PAC1∶1W/W、PHAT200mg·L－1．．4TP、DTP-14PPTPDTP．IP15OPTPIP．AT16PAC、AT+PAC1∶1W/W、PHATn=28．aChl．a17．Al3+S18Cl－19．r、20．S4800ⅡFESEM6000ATPHATAT．ASAP2020ATPHATAT、、、、．1．3SPSS13．0ANOVAP＜0．05P＜0．01．22．1PAC、1AT≤300mg·L－10．PHATAT+PACPHATAT+PAC．PHATPACPHATPAC70．10%．PHAT．2．2PAC、ATPAC、PAC、PHATAT+PAC3．2PACIPDTPPHATOPPP．AT+PAC206234PACPHAT．AT+PAC100mg·L－1PAC50—100mg·L－1IPAT+PACIPPAC．AT+PAC100mg·L－1PPPHATPACPACATPACPPPHAT．1PACATFig．1EffectsofmodifiedPACandATcomplexonthephosphorusremovalofeutrophicwater2PACATFig．2EffectsofmodifiedPACandATcomplexonthephosphorusremovalofdifferentformsineutrophicwater2．3PAC、ATPAC、PHAT、AT+PAC3．ATPACATPACPHAT．2．4PAC、Al3+Cl－4ATAl3+PAC“”Al3+Al3+．PACAl3Ala、AlbAlc21．Ala11206322．PAC、PHATAT+PAC3Al3+．PHATAl3+PACAT+PAC．PHATAlbAlc．3PACATFig．3EffectsofmodifiedPACandATcomplexonthesettlingrateoffloc4PACATAl3+Fig．4EffectsofmodifiedPACandATcomplexontheresidueofAl3+ineutrophicwaterATCl－PACCl－Cl－5．PAC、PHATAT+PAC3Cl－．PHATCl－AT+PACPAC．300mg·L－1PAC、PHATAT+PACCl－Cl－≤300mg·L－1．5PACATCl－Fig．5EffectsofmodifiedPACandATcomplexontheresidueofCl－ineutrophicwaterPHATAl3+、Cl－．、、、pH、DOAl3+、Cl－．2．5PAC、6Chl．a390．60±15．13μg·L－1855．61±11．06μg·L－1PHATPACAT+PACPHAT．PACAT+PACPACAT+PAC．ATATPACPACPHAT．2064346PACATabFig．6EffectsofmodifiedPACandATcomplexonalgaeremovalineutrophicwater2．6PAC、2．6．1PAC、7PHATPACAT+PAC．2．0—2．52．823-24．PHAT2．05±0．05PHATAlbAlbPHAT．7PACATFig．7EffectsofmodifiedPACandATcomplexontheratioofhydroxyltoaluminium2．6．2PACAT、AT．8AT+PACATPHATATPHATAT．PHATATAT+PACAT19．10%11．13%1．8ATPACPAC．HanKim7．AT+PACATPHATATAT+PACPHAT．AT+PACPHAT．2526-27．、26．AT+PACATPHATAT、Al、Fe、Si．PHATATAT+PACATAl、FeSi2．AT+PACPHAT．PHAT112065AT、AlAlAlPACPHAT．8PACATa、bFig．8ScanningelectronmicroscopyofATderivedfromnon－modifiedaandmodifiedbcomplex1Table1TheparametersofspecificsurfaceareaandsurfacestructureAT/m2·g－1BJH/m2·g－1/cm3·g－1BJH/cm3·g－1/nmAT+PAC160．6697．490．31760．28226．998PHAT191．34108．340．33560．28977．8742Table2TheatomicratioontheclaysurfaceATAl/%Si/%P/%Cl/%Fe/%Au/%AT+PAC11．0465．010．550．35．2417．86AT+PAC14．6459．631．170．123．7820．64PHAT15．3349．071．610．518．525PHAT10．4463．541．780．453．8319．9631PH