,,(,201620):,、pH、、CODCr。:A、BC6,4,5mL,pH6,30℃,15min,CODCr,95%。:;;:X7:A:1674-4829(2010)S2-0004-03,、、、COD、,COD。,,,(PVA)、,COD70%50%,、COD30%[1-2]。,,,、。[3],,,1∶9,,COD95%,95%。[4]Fe3O4,8nm,,2,,,,,,。,CODCr。11.1、PVA,:ρ(CODCr)1000~1200mg/L;800~1000;pH4~5;15~25℃。1.2:、、、4000、、、、。:(BL-220H)、(84-1A)、(SC-15)、(PH-140(A))、pH(6219)、(THZ-031)、(BT-100)、(U-2910)。:2010-06-12:(1965-),,,,,.ExperimentalStudyonTreatmentofPrintingandDyeingWastewaterbyMagneticFluidGUPing-dao,LIGuo-shun,HUJunAbstract:Usingsinglefactorexperiment,theinfluenceofthedosage,pH,temperature,mixingtimeandthemagneticfieldintensityofthemagneticfluidontheremovaleffectofchromaandCODCrofprintinganddyeingwastewaterwasstudied.TheresultsshowthatwhenthedosageofmagneticfluidA,fluidBandmagneticfluidCis6,4and5mLrespectively,thepHis6,thetemperatureis30℃andthestirringtimeis15min,theremovalofchromaandCODCrofprintinganddyeingwastewaterisfavorable,whichevencanreach95%.Keywords:Magneticfluid;Printinganddyeingwastewater;Removalrate232201012EnvironmentalScienceandTechnologyVol.23Supp.2Dec.2010EnvironmentalScienceandTechnology2321.31。,,,,、、12,1220cm,,2200A/m,,。22.12.1.12。2,,,,,,。A6mL,,6mL,Fe2O3Fe3+,;B4mL,,4mL,Fe2+,;C4mL,,95%。2.1.2CODCrCOD3。3,B4mL,CODCr,4mL,Fe2+,CODCr,CODCr;AC6mL5mL,CODCr,71%95%。2.2pH2.2.1pH4。4,pH6,3,pH,,pH。2.2.2CODCrpHCODCr5。5,pHCODCr,10%。pH6,3CODCr,A、BC71%,77%83%。2.32.3.16。6,,,,,。30℃,AB,84%90%。20℃30℃,C,97%。110080604020012345678/mL/%ABC23CODCr807060504030201012345678/mLCODCr/%ABC4pH10090807060ABC4567891011pH/%5pHCODCr908070604567891011pHABCCODCr/%52010122.3.2CODCrCODCr7。7,,CODCr。。,,、。30℃,ABCODCr,75%77%。20℃30℃,CCODCr,83%。2.42.4.18。8,。,,,。,,。2.4.2CODCrCODCr9。9,CODCr,CODCr,15min,CODCr。,CODCr。,,,,CODCr。3(1)A、BC100mL6,45mL,,CODCr,。(2)3pH6。(3),。,,,、。,。(4)CODCr,15min,CODCr。,CODCr;。[][1],,.[C]//,:,2005.[2],,,.[M].:,2002.[3],,.[J].,2005,22(4):46-49.[4],,.Fe3O4[J].,2006,21(2):22-25.()6ABC10095908580510202515/min/%89CODCr100908070102030405060ABC/%/℃7CODCr90807060102030405060/℃ABCCODCr/%90807060504030510152025/minCODCr/%ABC6