改性沸石去除微污染水中氨氮的试验朱丰华

313()Vol.31　No.320106JournalofJinanUniversity(NaturalScience)Jun.　2010　[]　2009-11-21[]　(2006A36802001);“”(2007A032400001);(2008A030202010)[]　(1984-),,,::(1962-),,,,E-mail:[e-mail],:13302283608朱丰华1,　任　刚1,　李明玉1,　林达红1,　王建平2,　林浩添2(1.,510630;2.,510160)[　]　,,-,.;、pH、.,2.51mg·L-1,1g·L-1,70.8%,.[]　;　;　;　[]　TU991.2;X703.1　　[]　A　　[]　1000-9965(2010)03-0286-05Removalofammonianitrogeninmicro-pollutedwaterbymodifiedzeoliteZHUFeng-hua1,　RENGang1,　LIMing-yu1,　LINDa-hong1,　WANGJian-ping2,　LINHao-tian2(1.DepartmentofEnvironmentalEngineering,JinanUniversity,Guangzhou510630,China;2.GuangzhouWaterSupplyCompany,Guangzhou510160,China)[Abstract]　Anewmodifiedzeoliteadsorbentwaspreparedbynaturalzeolite,chitosanandsodiumhy-droxide.Theadsorbentwasusedtoremoveammonianitrogenfrommicro-pollutedwaterbyusingthemethodsofadsorptionandcoagulation.Theas-preparedadsorbentwascharacterizedbySEMandEDS.Theeffectsoftheadsorptiontime,pHvalue,initalconcentrationofammonianitrogenanddosingquan-tityontheremovalofammonianitrogenwerealsoinvestigated.Theresultsshowthat,whenthedosingquantityofmodifiedzeolitewas1g·L-1,70.8%oftheammonianitrogeninmicro-pollutedwater(2.51mg·L-1)couldberemoved,whichindicatethatthisnewmodifiedzeoliteadsorbentcouldbeusedintheexistingwaterprocessing.[Keywords]　micro-pollutedwater;　ammonianitrogen;　modifiedzeolite;　chitosan　　,.2006《》(GB5749-2006),0.5mg·L-1(N).,,.(NH4+),“---”,,、、,[1].、[2],,,、,,,.,,NH4+、Na+,,[3].,.,,,,.1　1.1　EQUINOX55(Bruker);EPMA1600();XL-30ESEM();THZ-82A();ZR4-6();721();101-2-S();pHS-3CpH().(,1);(,85%);NH4Cl;HgI;KI;NaOH.1　w/%w/%SiO264CaO1.67Al2O312.84K2O2～3Fe2O31.46MgO0.86TiO20.081.2　,,,104℃4.0h.,2.0mol·L-1,,104℃4.0h,,,.,.1.3　,.500mL,250r/min,(PFS)(1.25mg·L-1,Fe).:250、100、50r/min10、3、5min,5min,1cm,(GB7479—87).pH=7.4～7.6,,pH.1.4　2.5mg·L-11g·L-1,,PFS,,1hEPMA1600[4],,2.2　2.1　[5],,,.“—”,、[6-8].1,,,,(E)70.8%.:1g·L-1;2.51mg·L-1.1　287　3,:2.2　12000,、2.,,,,.,,.[9-10],,,Na+,.(2),,.,,.[11],():K+NH4+Na+Ca2+Fe3+Al3++Mg2+,Na++1K+NH4+[12].,,Na+,.2　、SEM2　%N004.08O67.5074.2773.67Na0.841.710.62Mg0.530.670.65Al4.964.614.30Si22.4616.4814.82K1.341.101.00Ca0.630.800.72Fe0.880.370.372.3　.2.43mg·L-1,2、5、10、15、20min,1.3PFS.3.3,,;,,.2,,,10～12min,,10min.:1g·L-1;2.43mg·L-1.3　2.4　pHpH,pH5.5、6.0、6.5、7.0、8.0、8.5,、,4.:OH-+NH4+H2O+NH3,pHpHNH4+.,pH,,NH4+,288()31,[12].,,pH,pH,.:1g·L-1;2.46mg·L-1.4　pH2.5　,.56,5,6.5,,1mg·g-1,.6,,50%,.,.:1g·L-1.5　:1g·L-1.6　2.6　,,7.7,,,,13.54%23.58%,50%.,,.:2.68mg·L-1.7　3　(1)Na+,,.2.51mg·L-1,1g·L-1“-”,70.8%.(下转第298页)289　3,:[5]　XIAOWL,LUOCL,CHENYH,etal.Bioaccumula-tionofheavymetalsbywildplantsgrowingoncopperminespoilsinChina[J].CommunicationsinSoilSci-enceandPlantAnalysis,2008,39(3/4):315-328.[6]　,,,.[J].,2008,27(2):452-456.[7]　,,,.[M].:,2002:102-104.[8]　,,,.,,[J].,1991,2(3):244-248.[9]　,,,.[J].,2005,24(5):1003-1006.[10]WANGX,LIUY,ZENGG,etal.Subcellulardistribu-tionandchemicalformsofcadmiuminBechmerianivea(L.)Gaud.[J].EnvironmentalandExperimentalBota-ny,2008,62(3):389-395.[11],　,,.NTACuZn[J].,2007,26(2):453-457.[12],　,,.[J].,2005(12):2418-2422.[13]SUYH,ZHUYG.Transportmechanismsfortheup-takeoforganiccompoundsbyrice(Oryzasativa)roots[J].EnvironmentalPollution,2007,148(1):94-100.[责任编辑:刘蔚绥]　(上接第289页)　　(2),、pH、,.,,.pH,,.[][1]　,,,.[J].,2006,9,31(6):91-93.[2]　　,,,.[J].,2009,6(29):5-9.[3]　,.[M].:,2005:30-54.[4]　,.α-Fe2O3[J].,2008,4(2):30-31.[5]　JohnRDeams.Removingpolyvalentmetalsfromaqueouswastestreamswithchitosanandhalogenatingagents[P].US005336415A,1994.[6]　　,,,.[J].,2008,11,41-44.[7]　　,　.[J].:,2006,12(20):21-25.[8]　,,,.(Ⅱ)[J].,2008,9/24(17):79-83.[9]　　,,,.[J].,2008,21(5):37-42.[10],.[J].,2009,4(3):635-638.[11]ANNELIEHEDSTROM.IonExchangeofammoniuminzeolites:aLiteratwereview[J].JournalofEnvironmen-talEnginerring,2001(8):673-681.[12],,,.[J].,2005,24(1):91-94.[责任编辑:刘蔚绥]298()31