反渗透专用阻垢剂TJRO101的阻垢性能张冰如

:1007-8924(2006)06-0065-06反渗透专用阻垢剂TJRO101的阻垢性能张冰如(,200092)　:反渗透专用阻垢剂的阻垢效果可通过反渗透的动态模拟实验来评价.反渗透装置以“周期性浓缩的全循环模式”运行,使浓水侧的饱和指数逐渐增大,碳酸钙和硫酸垢的结垢趋势逐渐增加,RO的总回收率也逐渐提高.碳酸钙和硫酸垢的沉积使得溶液的组成改变,并以此评价阻垢剂的阻垢效果.对新型反渗透专用阻垢剂TJRO101、传统反渗透阻垢剂SHMP及KingLee的PTP2000的动态模拟实验表明,TJRO101对CaCO3,CaSO4,BaSO4,SrSO4垢有极其优良的阻垢性能,是一种多功能的反渗透专用阻垢剂.:TJRO101;反渗透;阻垢剂;阻垢;CaCO3;CaSO4;BaSO4;SrSO4:TQ082.412　　:A　　[1]:———;———;———;———;———.,,,;,,.、,..3[2-4]:、+、.,.+,,,,.、.,CaCO3,CaSO4,BaSO4,SrSO4,,,,90%,[5,6].KingLee,Nacol,BeTZ,.,,+SHMP,,,,,,CO2.SHMP,Ca2+,,,.,,.2001,:2005-02-25;:2005-06-14:(1965-),,,,,.〈[e-mail]〉26　6　　　　　Vol.26　No.6200612MEMBRANESCIENCEANDTECHNOLOGYDec.2006DOI:10.16159/j.cnki.issn1007-8924.2006.06.014TJRO101.TJRO101,TJRO101CaCO3,CaSO4,BaSO4,SrSO4;TJRO101,TJRO101RO.,TJRO101,TJRO101CaCO3,CaSO4,BaSO4,SrSO4.1　实验部分1.1　CaCl2,BaCl2,SrCl2,Na2SO4,NaCl,NaHCO3,1,2,3.表1　阻碳酸垢实验配制水Table1　PreparedfeedwatercompositionforinhibitingCaCO3testmg/LCa2+Na+Cl-HCO3-TDSpH2002073212008508.0表2　阻硫酸垢实验配制水Table2　Preparedfeedwatercompositionforinhibitingsulphatescaletestmg/LCa2+Ba2+Sr2+Na+HCO3-Cl-SO42-TDSpH4000.2324.84462147768018095.2表3　实验所用的阻垢剂的规格Table3　Testedanti-scalants/%　TJRO10145PTP-200035KingLeeSHMP1001.2　[7],1.4,,5μm,,.SΛEHΛN()RE4040-BE,10cm,100cm,7.9m2,99%.10%,40%.300L.,.1　ROFig.1　SchematicdiagramofROexperiment1.3　TJRO101“”[8].1310L/h,400L/h(Y′=30%).,28～30℃.,0.5h(Δt=0.5h),Ca2+,Ba2+,Sr2+,HCO3-,Cl-,.,,,,0.5h,,,.,Ca2+,Ba2+,Sr2+,HCO3-,Cl-pH.Ca2+,Ba2+,Sr2+(ICP),HCO3-,Cl-(ZDJ-4A).1.4　1.4.1　[8]:iKi,Y′,iYi.iYi[8]:Yi=1-1-Y′Ki1.4.2　[8]i,,Mi:　·66　　　·　　　　　26　Mi=C0×V0-Ci×Vi=V0×(C0-CiKi),Mii,mg;C0,Ci、i,mg/L.ivi:νi=ΔMΔt×A=Mi-Mi-1Δt×A=V0(Ci-1/Ki-1-CiKi)Δt×A,Δt;νii,mg/(m2·h)1.4.3　(1)[9]4000mg/L,LSI(LangelierIndex).LSI=pHr-pHspHrpH;pHspH,、、、,:pHs=9.3+A+B-C-DA=(lg[TDS]-1)/10TDS,mg/L.B=-13.2×lg[t℃+273]+34.55C=lg[Ca2+]-0.4;Ca2+mg/L(CaCO3)D=lg[HCO3-];HCO3-mg/L(CaCO3)LSI0,CaCO3;LSI≥0,CaCO3.(2)[10]CaSO4,BaSO4,SrSO4SI(SaturationIndex):SICaSO4=CCa2+CSO2-4Ksp′SIBaSO4=CBa2+CSO2-4Ksp′SISrSO4=CSr2+CSO2-4Ksp′,C,mol/L;Ksp′.SI1,;SI1,.2　结果与讨论2.1　RO1,3,,0.5h,2～6.　　23mg/L,23mg/LTJRO101,K93.68,Ca2+;3mg/LPTP2000,K83.5,Ca2+;3mg/LSHMP,K21.4,Ca2+.Ca2+Ca2+,.,,,　6:TJRO101·67　　　·　;,.2TJRO101PTP2000CaCO3SHMP,TJRO101CaCO3PTP2000.33mg/L,CaCO3,4ROLSI(LangelierIndex).3,3mg/LTJRO10181%,3mg/LPTP200080%,3mg/LSHMP50%.TJRO101PTP2000CaCO3SHMP,TJRO101CaCO3PTP2000.4,3mg/LTJRO101LSI2.78,,3mg/LPTP2000LSI2.69,,3mg/LSHMPLSI1.66.4,CaCO3,LSI,CaCO3,LSI.,(),CO2,pH,,LSI.CaCO3,pH,LSI,,,,CaCO3.5,TJRO101,PTP2000SHMP.6,LSI.RO,,.TJRO101CaCO3PTP2000,CaCO3SHMP.2.2　RO2RO,3,,0.5h,7～11.72,ROCaCO3LSI,8、、SI.7,LSI0,,.8,BaSO4,SrSO430%,45.95,2.32,,CaSO474%,1.14,,RO,.1mg/LTJRO101,1mg/LPTP2000,4mg/LSHMP,BaSO49,SrSO410,CaSO411.,SHMP,72%BaSO4,BaSO4SI131,TJRO101PTP2000,82%80%,BaSO4.SHMP,78%SrSO4,SrSO4　·68　　　·　　　　　26　SI7.94,TJRO101PTP2000,86%,SrSO4,SrSO4SI12.93.SHMP,78%CaSO4,CaSO4SI1.26,PTP2000,84%,CaSO4,CaSO4SI1.83,TJRO101,86%,CaSO4,CaSO4SI2.14.TJRO101,PTP2000CaSO4,BaSO4,SrSO4SHMP,TJRO101,PTP2000.2,Ca2+,Ba2+,Sr2+,TJRO101SI,12..3　结论TJRO101,CaCO3,CaSO4,BaSO4,SrSO4.TJRO101PTP2000,SrSO4PTP2000,CaCO3,BaSO4PTP2000.TJRO101PTP2000CaCO3,CaSO4,BaSO4,SrSO4SHMP.,.TJRO101,.[1]ZahidA.Reverseosmosis-membranetechnology,waterchemistry&industrialapplications[M].VanNostrandReinhold,1993.[2]Al-ShammiriM,SafarM,Al-DawasM.EvaluationoftwodifferentantiscalantsinrealoperationatDoharesearchplant[J].Desalination2001,28:1-16.[3]MindlerB,ArthurCE.Measurementsandcontrolinre-verseosmosisdesalination[J].Desalination1986,58:343-379.[4]CharlesFS.Measurementsandcontrolrelatedtocorrosionandscaleinwaterdesalinationinstallations[J].Desalina-　6:TJRO101·69　　　·　tion1986,58:425-444.[5]ButtFH,RahmanF,BaduruthamalU.Pilotplantevalua-tionofadvancedvs.conventionalscaleinhibitorsforROdesalination[J].Desalination,1995,103:189-198.[6]DartonEG.Membranechemicalresearch:centuriesapart[J].Desalination,2000,132:121-131.[7]Standardtestmethodsforoperatingcharacteristicsofre-verseosmosisdevices[S].D4194-95,ASTM.[8],,.[J].,2004,24(6):38-42.[9]　,　,.[M].:,2001.[10]ZahidA.Mineralscaleformationandinhibition[M].NewYork:PlenumPress,1995:323-339.InhibitingperformanceofscaleinhibitorTJRO101forreverseosmosispurposeZHANGBingru(StateKeyLabofPollutionControl&ResourceReuse,SchoolofEnvironmentalScience&Engineering,TongjiUniversity,Shanghai200092,China)Abstract:TheantiscalanteffectivenessofscaleinhibitorofTJRO101canbeevaluatedbyROdynamicsimulat-ingexperiment.ROisoperatedinatotalrecyclemodeforperiodicallyconcentration,whichmakessupersatura-tionlevelofconcentrateincreaseprogressively,thescalingpotentialenhanceenhanceprogressivelyandrecoverylevelraisegradually.SolutioncompositionchangesduetoprecipitationofCaCO3andsulfate-basedscalescanbeusedtodetecttheantiscalanteffectiveness.TheresultsofROdynamicsimulatingexperimentonnewnovelTJRO101,conventionalantiscalantSHMPandPTP2000ofKingLeeshowthatTJRO101hasexcellentscalein-hibitionforCaCO3,CaSO4,BaSO4,SrSO4andisaversatilescaleinhibitorforreverseosmosispurpose.Keywords:TJRO101;reverseosmosis;scaleinhibitor;antiscalant;CaCO3;CaSO4;BaSO4;SrSO4　·70　　　·　　　　　26