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261()Vol.26,No.120033J.ofWuhanUni.ofSci.&Tech.(NaturalScienceEdition)Mar.2003 :2002-12-05 :(1969-),,,.,,,, (,430081):通过改变电流密度、通电时间、沉淀时间等条件,对微污染水中CODMn去除进行了试验研究,得出了在电流密度为2.78mAcm2,处理时间为5~10min,沉淀时间不小于10min时,CODMn的去除率达到20%以上。并结合当前水源有机污染的现状,阐述了采用电凝聚进行饮用水处理的必要性和可行性。:电凝聚;微污染源水;CODMn的降解:X703.1 :A :1672-3090(2003)01-0027-03 ,,。“※※※”、,、。,,,。,,,,。,26μgL,48μgL,80μgL[1],2~3。,:;,,;,,。,,。,。,,,、、,()[2]。,。,、、、、[3~7]。,,。1 1.1 (185mm×140mm×110mm),16,,2mm,115mm,115mm,9mm,,75mm。,CODMn。1。1 1—;2—;3—;4—;5—1.2 。1。1 CODMnmg·L-1mg·L-1pH12.56~14.68119.1~180.06.81~6.911.3 2000mL,,;,CODMn。,,,,15mm。2。2 V91215A1.01.83.6mA·cm-20.781.392.78 :,。2 2.1 CODMn2,10min,CODMn。2 1—0.78mAcm2;2—1.39mAcm2;3—2.78mAcm22,,CODMn,,,CODMn。:,,Al3+,Al3+,,,CODMn;,Al3+,,,。,,,。,2.78mAcm2,5~10min。2.2 CODMn3CODMn。,0,0min。3,CODMn。,CODMnCODMn。,,,3 CODMn1—0.78mAcm2;2—1.39mAcm2;3—2.78mAcm2,。,。,10min。2.3 pHCODMn42.78mAcm2,5min,10min,pHCODMn。4 pHCODMnpH,CODMn;pH7,CODMn。,,pH。3 、。3.1 Al3+CODMn,。,Al3+,、,,,,,、[1],28 () 20031,Al(OH)3。。,,H2、O2。3.2 ,,、H2,O2,,Cl2。[4],、,、,。3.3 3,,CODMn,CODMnCODMn。Cl-,,,,,,,CODMn。、。,,,,[5]。4 (1)。(2)、。(3),[5,7],,。[1] ,,.[J].,1999,25(5):12—14.[2] ,.[J].,2001,27(9):4—5.[3] ,,.COD[J].,2001,24(1):37—41.[4] .[M].:.1999,10:138—139.[5] ShengHe-lin.FentonProcessforTreatmentofDyeingWastewater[J].WaterRes.,1997,(9):71—73.[6] ,.[J].,2002,22(5):5.[7] ,,.[J].,2001,21(10):6—8.StudyontheDegradationofCODMninSourceWaterbyElectro-coagulationZANGHui-ling,ZHAOSu-fen,DINGZhong-hao,HUANGSong-rong,WANGGang(CollegeofChemicalEngineering,ResourcesandEnvironment,WuhanUniversityofScienceandTechnology,Wuhan430081,China)Abstract:AstudyiscarriedoutontherateofCODMnremovalbytheelectro-coagulationtechnologywhentreatingslightly-pollutedsourcewaterthroughchangingthedensityofelectriccurrent,treatingtime,precipitationtimeetc.Whenthedensityofelectriccurrentis2.78mAcm2,treatingtime5~10mins,precipitationtimenotlessthan10mins,theremovalrateofCODMnexceeds20%.Inthelightoftheorganicpollutionofsourcewater,thenecessityandfeasibilityoftreatingsourcewaterbymensofelectro-coagulationhavehavebeenelaborated.Keywords:electro-coagulation;slightly-pollutedsourcewater;degradationofCODMn[ ]2920031 ,:
本文标题:电凝聚对水源中有机物去除的试验研究张惠灵
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