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1,1,2,1,1(1.,510006;2.,510115) [ ],。。,2V,100%,。,100%,,。[];;StudyontheSquare-waveLow-voltagedPulseAnti-scalingTechnologyZengMin1,XuWenbin1,ChenHanyi2,ChenXinyi1,HuangShujie1(1.EnvironmentalScienceandEngineeringSchool,GuangdongUniversityofTechnology,Guangzhou510006;2.GuangzhouEPEnvironmentalEngineeringConsultingLTD,GuangdongGuangzhou510115,China) Abstract:Electronwaterprocessor(EWP)isanewtypeofwaterdisposalfacilitywhichcouldpreventthescaleinheatexchangers.Inthispaper,theanti-scalingeffectofEWPwhichusedsquare-wavepulsecurrenthavebeenstudied,thedatashowthattheanti-scalingrateis100%whenthevoltageis2V.Thehardnessandalkalini-tyoftreatedwaterdecreasepartlyandthedecreasingdegreeismuchbetterthantriangular-wavepulsecurrentontheconditionthattheanti-scalingrateis100%.Keywords:low-voltaged;anti-scaling;square-wavepulse[]2005-11-23[](012020)[](1980-),,,,。 ,,、。、、、、、、、、。、、、、、。,。。1 、1.1、、,,———。,1。1 1T0T1,;E0=0V,E1,0～30V,,E=T1T0+T1E1。9L,,125W。8h,1h。,、,。39 2006133153 。:200～300mg/L,:400～510mg/L(CaCO3)。2.32。1-;2-();3-;4-;5-;6-2 :149mm,590mm,520mm,26mm,424.5cm2。2.4:;:T,EDTA;:,HCl;:;:-×100%。3 0、1.0V、1.8V、2V、,1.8V。15L;320mL/min。3.11。3.2。2。:T1=2ms,Emax=4V,2V,320mL/min。T1;Emax。1 ()/V/h12345678/%(mg/L)255.50230.63192.19187.39182.58173.93166.24154.71150.87(mg/L)474.18466.87456.09449.74446.50444.02440.21414.67407.99,77.90mg01.0(T0=60ms,T1=20ms,Emax=4V)(mg/L)238.32239.28216.22221.99221.99218.15218.15206.62203.74(mg/L)460.30421.44433.29422.90458.29454.7458.29453.11436.52,43.00mg44.801.8(T0=20ms,T1=20ms,Emax=3.6V)(mg/L)257.54252.74260.43257.54235.44245.04248.88249.85249.46(mg/L)503.06471.67487.26458.37419.77463.41480.03473.18487.73,3.38mg95.662.0(T0=20ms,T1=10ms,Emax=6V)(mg/L)266.19230.63211.41200.84178.74197.00172.98147.99120.12(mg/L)488.14449.07430.37487.69406.26375.09366.78350.16340.81,1002 T1=2ms,Emax=4,2V(:)/V/h/(mgL-1)/(mgL-1)2.0267.15431.411257.54433.282256.58411.043250.81408.344253.69390.685257.53375.096264.26370.937269.07370.938254.66397.94:,:100%3.31～2,,;,;3,、,。2V100%;1.8V95.66%,、,。40 2006133153 3 ()/V/%/%/%1039.7713.96-2114.515.1744.8031.83.143.0595.664254.8730.18100, 4 /%/%/%12V54.8730.18100,22V4.687.76100, 4,、,。2V,100%,,54.87%30.18%,。,,,,。,。3 (1),,;,;(2)、,2V100%,;(3)100%,,。,。[1].CEG[D].,2001.[2],,.[J].,2003,05:21-23.[3]USPatent4235698,Electronicwatertreatmentappatatus[P],1980.[4].—[M].,1995.[5],.[J].,1999,25(1):40.[6],,.[P].CN2072534,1991.[7].()[S].,1989.[8].[J]..1995.6:58-59.(上接第32页),。,,。,(NH4)2SO4,,。3 ,,,,,,,。,,,,,。,。,。。[1]MariaEstelaSilva,TelmaTeixeiraFrance.Purificationofsoybeanperoxidase(Glycinemax)bymetalaffinitypartitioninginaqueoustwo-phasesystems[J].JournalofChromatographyB,2000,743:287-294.[2]SovanSarkar,AngelT.Martinez.Biochemicalandmolecularchar-acterizationofamanganeseperoxidaseisoenzymefromPleurotusostreatus[J].JBiiochem.ct.biophysica.Acta,1997,1339:23-30.[3]BaoLige,ShengwuMa,DonglingZhao.Cationicpeanutperoxi-dase;expressionandcharacterizationintransgenictobaccoandpur-ificationofthehistidine-taggedprotein[J].PlantScience.1998,136:159-168.[4]LiuWei,LiTang.SequenceAlignment,SeconddaryStructurePredictionandHydrophobicityAnalysisofSoybeanHullPeroxi-dase[J].JournalofCelluloseScienceandTechnology,2001,3:9-15.[5]LeskAM,ChothiaC.Howdifferentaminoacidsequencesdeter-minesimilarproteinstructures:thestructureandevolutionarydy-namicsoftheglobins[J].JMolBiol,1980,136(3):225-240.[6],.[J].,2003,1:41.[7],,.[J].,1998,(1):26-29.41 2006133153