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ResearchonthephosphateremovalbyconsolidatedandoxidizedlanthanumLuoFang1,ZhanFengping2,JiangYingxiang1,HanJintao1(1.SchoolofEnvironmentalScienceandEngineering,KunmingUniversityofScience&Technology,Kunming650093,China;2.WuhanDesign&ResearchInstituteofSinocoalInternationalEngineeringGroup,Wuhan430064,China)1,2,1,1(1.,650093;2.,430064)[],,、、、pH。,,97.2%。[];;[]X703.1[]A[]1005-829X(2010)06-0011-04Abstract:Electrodepositionhasbeenusedforconsolidatingthelanthanumonsurfaceofmetalnet.Theconsolidatedandoxidizedlanthanumcanbeusedforremovingthephosphatehavinglowconcentrationfromwastewater.Thephosphateremovalefficiencyunderdifferentconditionssuchascurrent,time,temperature,pH,andelectrolyteconcentrationhasbeenstudied.Throughtheobservationoftheelectrodesurfacewithmicroscope,andmeasurementwithspectrophotometer,thephosphateremovalrateismeasured.Theresultsshowthattheoptimalphosphatere-movalrateis97.2%.Keywords:oxidizedlanthanum;phosphateremoval;electrodeposition[](1978—),2007,,。:13023846494,E-mail:fanghangling@163.com。[]2010-01-18()[J].:,2003,42(3):324-328.[11],,,./[J].,2008,29(5):1266-1270.[12],,,.-[J].,2007,33(11):64-66.[13],,,.[J].,2006,29(12):65-67.[14].[J].,2002,18(10):83.[15],.[J].,2006,34(20):5328-5330.[16],,.[J].,2000,21(4):53-55.[17],.ClO2[J].,2002,18(4):70-72.[18],,,.[J].,1998(3):3-5.[19],,.[J].,2001,17(7):6-9.[20].[D].:,2006.[21],.[J].,2008(3):30-32.[22],,.-[J].,1999,19(4):223-225.[23],,.[J].,2008,28(10):77-79.,,,〔1〕。,,〔2〕。!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!30620106IndustrialWaterTreatmentVol.30No.6Jun.,201011——2010-06,30(6),、,。Sanyo,500mg/L5mg/L〔3〕,GB8978—1996《》0.5mg/L。,。1,:,,、、。〔4〕:,,,:La2O3·3H2O+2PO43-葑2LaPO4+6OH-,。:2LaPO4→P2O5↑+La2O31:,,、、、pH。22.1,,;,4.5cm,1cm;(P)0.05mg/L,。TD,;721,。2.2GB11893—1989。2.3,,,、、、pH、,。:(1),,,。(2),,,,,,。(3)(KH2PO4)110℃2h,,0.2197g,1000mL,1+15mL,。50.0mg/L,,0.05mg/L。(4),50mL0.05mg/L(P),。(5),,。33.1,,,,。,,,。3.20.45mol/L,30min,20℃,pH3,(11~61mA),2。2,11~21mA,,≤77%。,12——2010-06,30(6),,,,,11~21mA。23mA,96.7%。,,,,,,,。,。,:,,,,,,,,。55mA,,44%,。3.30.45mol/L,15mA,20℃,pH3,(10~100min),3。3,10~40min,,40min,,96.1%。,,,。40~100min,,,,,,,。3.40.45mol/L,15mA,30min,pH3,(37~85℃),4。4,37℃57℃,,,,,,,57℃,97.2%。57~70℃,;70~75℃,;75~80℃,;80~85℃,。,,,。3.5pH0.45mol/L,15mA,30min,20℃,pH(1~7),5。5,pH1~3,,pH34,,100%,。pH,,,,,,,。,pH,,pH,,,,,,,。3.6pH3,15mA,30min,20℃,(0.1~3mol/L),6。,:13——2010-06,30(6)[](1983—),2007。:13888486380,E-mail:luofang0223@sina.com。:,:15987123471。[]2009-12-08()6,0.1~0.7mol/L,,0.7~1mol/L,;1~2mol/L,,94.5%,。,,,,,。(2~3mol/L),。,,,,。3.7〔5〕,1。1,,、、,,。4,:23mA,40min,57℃,pH3,1mol/L,90%,97.2%。(0.05mg/L),、(97.2%),-,,,,。[][1],,,.[J].,2006,32(10):935-938.[2],,.[J].,2006,32(10):19-21.[3].[J].,2003,23(2):117.[4],.:CN,1686854[P].2005-10-26.[5],,.[J].,2004,23(3):51-53.———.CN10120509···············································,、、,::60%~90%,8%~37%,1%~3%,0.01%~0.03%。,、、、。,,;,(CODCr)20%;95%,;。()1--50mg/L0.05mg/L95.0%97.2%14——
本文标题:固定化活性氧化镧除磷的实验研究罗芳
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