高压静电场在反渗透预处理中的试验研究

263　　　　　　　Vol.26No.3　20105JOURNALOFLOGISTICALENGINEERINGUNIVERSITYMay2010　:1672-7843(2010)03-0062-05高压静电场在反渗透预处理中的试验研究马晓伟1,周宁玉1,谢朝新2,黄俊龙1,孙国周3,杜建民4(1.后勤工程学院营房管理与环境工程系,重庆401311;2.后勤工程学院科研部,重庆401311;3.海军工程设计局,北京100070;4.重庆市政府应急办,重庆400015):2010-02-02:马晓伟,男,硕士生,主要从事水质净化技术与装备研究。　　试验研究了高压静电场对反渗透进水的温度、总硬度、电导率、pH值和细菌数的影响,以及高压静电场对反渗透膜通透量和回收率的影响。结果表明,高压静电场可有效改进反渗透预处理。经高压静电场处理后,原水的温度、总硬度、电导率升高,pH值降低。高压静电场的杀菌率随作用时间的增加而增大,随电压的上升而增大。采用高压静电场对反渗透进水进行预处理,可提高反渗透的通透量和回收率。　高压静电场;反渗透;预处理:TQ085+.47:BExperimentalResearchontheROPretreatmentofHigh-voltageElectrostaticFieldMAXiao-wei1,ZHOUNing-yu1,XIEChao-xin2,HUANGJun-long1,SUNGuo-zhou3,DUJian-min4(1.Dept.ofBarracks'ManagementEnvironmentalEngineering,LEU,Chongqing401311,China;2.Dept.ofScienceResearch,LEU,Chongqing401311,China;3.NavyInstituteofEngineeringDesignResearch,Beijing100070,China;4.EmergencyManegementOfficeofChongqingPeople'sGovernment,Chongqing400015,China)Abstract　Thispaperdiscussedtheeffectofhigh-voltageelectrostaticfieldonthetemperature,totalhardness,conductivity,pHandbacteria'snumberofwater,andonthefluxandrecyclingrateofROmembrane.Theresultsshowthathigh-voltageelectrostaticfieldcanbeeffectivelyusedinROpretreatment.Treatedbythehigh-voltageelectrostaticfield,thetemperature,totalhardness,con-ductivityofrawwaterimproved,whilethepHfell.Thesterilizationrateofhigh-voltageelectrostaticfieldincreasedasthecontacttimewentlonger,andincreasedwiththeimprovementofvoltage.Theapplicationofhigh-voltageelectrostaticfieldinthepretreatmentofROcanimprovetherecyclingrateandtransparentvolumeofROmembrane.Keywords　high-voltageelectrstaticfield;reverseosmosis(RO);pretreatment、,。,,、[1-2]。、,,[3-4],、,、、[5-7],[8]。,,,,[9-11],。1　试验方法1.1　1。,,,()。2。1　2　350mm×500mm,30mm×400mm,220V,0～10kV;TW30-1812-50,,30%,98%。,3.34%,(EscherichiaColi(Migula)CasfellanietChalmers)。1.2　EDTA,。、pH、DDS-307pH,。2　试验结果与分析2.1　3,4。40L/h。3,,96h,16L/h3L/h;,7L/h,2。4,,96h,38%9%;,16%,1.8。,,。2.2　40kV10kV2h,,5633　　　　　　　　　　　　　马晓伟等　高压静电场在反渗透预处理中的试验研究。542h;10kV2h,,0.2～0.6℃:,,,(6),,。2.3　7。,,10kV,,,CaCO3,CaSO4,。:,CaCO3Ca2+CO32-,,;,,,,———,,,。(),,,,,,[3-4]。,,(34)。2.4　(CaCO3)320,340,360,380mg/L4,10kV2h,8。8,2h,,,。10kV2h4,,Ca2+,CaCO3CaSO4,,,64　　　　　　　　　　　　　　　　　　　　　　2010(34)。2.5　pHpH9。,,pH。,,OH-H+,OH-·OH,H2O2[12-13]:　　　　H2OOH-+H+　　OH-·OH+e　　·OH+·OHH2O2,HCO-3,H+:　　　　HCO3-CO2-3+H+OH-,HCO-3,H+,pH。pH(10),pH8.5,12h0.95,pH8.57.0,12h0.950.925。pH(10kV2hpH8.37.8),pH,。2.6　2.5,5,10kV,。:　　　　=(C0-C)/C0×100%,:C0,cfu/mL;C,cfu/mL。,,。11。,,,。653　　　　　　　　　　　　　马晓伟等　高压静电场在反渗透预处理中的试验研究O-2、H2O2·OH,O-2、,。H2O2·OH,。,,(34)。3　结　论(1)。(2)、、,pH,,,。(3),,,,。[1]ARRASW,GHAFFOURN,HAMOUA.PerformanceevaluationofBWROdesalinationplant:acasestudy[J].Desalination,2009,235:170-178.[2]SHONHK,VIGNESWARANS,CHOJ.Comparisonofphysico-chemicalpretreatmentmethodstoseawaterreverseosmosis:detailedanalysesofmolecularweightdistributionoforganicmatter[J].JournalofMembraneScience,2008,320(1/2):151-158.[3]KHAWAJIAD,KUTUBKHANAHIK,WIEJM.A13.3MGDseawaterROdesalinationplantforYanbuindustrialcity[J].desalination,2007,203:176-188.[4]SHONHK,KIMSH,VIGNESWARANS,etal.Physicochemicalpretreatmentofseawater:foulingreductionandmembranecharacterization[J].Desalination,2009,238:10-21.[5]XUJia,RUANGuo-ling,CHUXi-zhang,etal.ApilotstudyofUFpretreatmentwithoutanychemicalsforSWROdesalinationinChina[J].Desal-ination,2007,207:216-226.[6]KIMJ,DigianoFA,REARDONRD.Autopsyofhigh-pressuremembranestocompareeffectivenessofMFandUFpretreatmentinwaterreclama-tion[J].WaterResearch,2008,42:697-706.[7]MAWei,ZHAOYa-qian,WANGLu.ThepretreatmentwithenhancedcoagulationandaUFmembraneforseawaterdesalinationwithreverseosmo-sis[J].Desalination,2007,203:256-259.[8]LIANGCK,WON-YOUNGA,CLARKMM.Selectiveadsorptionofnaturalorganicfoulantsbypolysulfonecolloids:effectonultrafiltrationfouling[J].JournalofMembraneScience,2006,281(1/2):472-479.[9],.[J].,2008,39(1):52-55.[10],,.[J].,2008,27(3):9-13.[11],,,.[J].,2007,28(6):1028-1030.[12],,,.:[J].,1995,24(7):424-428.[13].[J].,1998,14(2):39-40.(编辑　周　聂)66　　　　　　　　　　　　　　　　　　　　　　2010