FeSO4和CaCO3在焦化废水净化中的应用研究于凯

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[3]MatthewsRM.Anadsorptionwaterpurifierwithinsituphotocatalyticregeneration[J].J.Catal.,1988,113(2):549-555.[4]SerponeN,BorgarelloE,HarrisR,etal.PhotocatalysisoverTiO2supportedonaglasssubstrate[J].SolarEnergyMaterials,1986,14(1):121-127.[5]PeilNJ,HoffmannMR.ChemicalandphysicalcharacterizationofaTiO2coatedfiberopticalcablereactor[J].Environ.Sci.Technol.,1996,30(9):2806-2812.[6],.[J].,1999,11(1):1-10.[7],,,.Fe2O3TiO2[J].,2006,26(12):44-47.[8],,.TiO2[J].,2006,7(6):10-12.[9],,,.Fe3+Zn2+[J].,2007,36(13):17-20.[10]JoohoMoon,TakagiH,FujishiroY,etal.PreparationandcharacterizationoftheSb-dopedTiO2photocatalysts[J].JournalofMaterialsScience,2001(36):949-955.[11],,,.TiO2[J].:,2000,30(5):395-399.[12],,,.TiO2[J].,2006,27(3):26-30.[13]LinaceroR,Aguado-SerranoJ,Rojas-CervantesML.PreparationofmesoporousTiO2bythesol-gelmethodassistedbysurfactants[J].JournalofMaterialsScience,2006,41(8):2457-2464.[](1983—),。:15955120400,E-mail:qishuai@mail.ustc.edu.cn。[]2009-01-25()StudyontheapplicationofferroussulfateandcalciumcarbonatetothepurificationofcokingwastewaterYuKai,LüYongkang,RenLei(TaiyuanUniversityofScience&Technology,Taiyuan030024,China)FeSO4CaCO3,,(,030024)[]。,FeSO4CaCO3,COD、NH3-N。,1L1gFeSO40.2gCaCO3COD、NH3-N,COD、NH3-N79.8%、69.8%80%~90%。,,。[];FeSO4;CaCO3;[]X703.1[]A[]1005-829X(2009)05-0053-04Abstract:Cokingwastewatercontaininghighlyconcentratedorganicpollutantsistypicallydifficulttobedegraded.Inordertotreatcokingwastewatereffectively,bymeansofaddingferroussulfateandcalciumcarbonateproperly,certainamountofCOD,NH3-Nandchromacanberemoved.Theresultsindicatethatadding1gofferroussulfateand0.2gofcalciumcarbonateto1LwastewatercanmaketheremovalratesofCOD,NH3-Nandchromameettherequirementsofthetreatmentstandardtoacertainextent.TheremovalratesofCOD,NH3-Nandchromaare79.8%,69.8%and80%-90%respectively.Afterthetreatment,thewaterqualityissteady,andthebiodegradabilityisimproved,creatingconditionsforthesequentbiochemicaltreatment.Keywords:cokingwastewater;ferroussulfate;calciumcarbonate;absorbency[](052035)1,,,。、!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!29520095IndustrialWaterTreatmentVol.29No.5May,200953——2009-05,29(5),,,、、。、、。,,,,。。,2090,,,。1996《》(GB8978—1996)NH3-N(NH3-N<15mg/L),CODCr(CODCr<150mg/L)。,CODCr、NH3-N,。。22.1。,Fe2+Fe3+,pH,Fe(OH)2Fe(OH)3。Fe(OH)3[Fe(OH)]2+、[Fe(OH)2]+,,,〔1〕。、,NH4+〔1〕。,。CaCO3pH,(Ca(OH)2),,。,Ca2+FeSO4SO42-CaSO4,FeSO4,SO42-。CaCO3,,。,,。2.2,COD3500mg/L,NH3-N265.22mg/L,pH6.86,,。2.36500mL100mL,FeSO4,,0.02gCaCO3,,,、pH、COD。3,,,。FeSO4,。3.1752(240~340nm),10,,1。1,,λ=270nm。25〔2〕,,2。2,λ=270nm,。,270nm。,270nm。0.160.140.120.100.080.060.040.02240260280300320340λ/nmA2252.01.51.00.50240260280300320340λ/nmA11054——2009-05,29(5)1、CODNH3-N,:FeSO4CaCO33.2,FeSO4,270nm,FeSO4,3。3,0.1gFeSO4,,A=KCL,,,,FeSO4。0.1g,FeSO4,,FeSO4Fe3+。,,“”,,〔3〕。3.3pH,pH,FeSO4pH4。4,FeSO4pH,pH,,pH。0.1gpH。3.4CODFeSO4COD5。5,CODFeSO4,FeSO4COD。3.5NH3-NFeSO4NH3-N6。6,FeSO4,NH3-N。,0.1g。、CODNH3-N1〔4〕。3.6(1),。,,,,。1.11.00.90.80.70.60.5012345FeSO4/gA3FeSO46.56.05.55.04.54.0012345FeSO4/gpH4FeSO4pH8180797877767500.51.01.52.02.53.03.54.04.5FeSO4/gNH3-N/(mg·L-1)6FeSO4NH3-N14501350125011501050950850750650012345FeSO4/gCOD/(mg·L-1)5FeSO4CODCaCO3/(g·L-1)FeSO4/(g·L-1)pH10.21.06~880~9079.869.820.22.06~875~8574.470.130.25.06~870~8573.170.440.2106~870~8070.970.650.2156~870~8069.070.960.2206~870~8067.171.070.2256~870~8065.571.280.2306~870~7563.971.590.2356~870~7562.471.4100.2406~860~7060.671.5/%CODNH3-N55——2009-05,29(5),、。A,,B。A;B。,、,。———,.CN101279786···············································,pH4.0~7.0,;。10~500mg/L,2~10h,,。DDG,。、、、、,,。———.CN101269904,、。,,,,,,;。,。,,,、。———,,,.CN101269868(2)。1)。Fe2+Ca2+,pH,,,,,。2)。Fe2+Ca2+,,、〔5〕。4,1L,1gFeSO40.2gCaCO3COD。[][1].[J].,2002,16(4):33-34.[2],,,.COD[J].,2002,18(12):85-86.[3]KangSF,LiaoC,HungHP.Peroxidationtreatmentofdyemanufacturingwastewaterinthepresenceofultravioletlightandferrousions[J].JournalofHazardousMaterials,1999,65(3):317-333.[4]GeorgiouD,AivazidisA,HatirasJ,etal.Treatmentofcottontextilewastewaterusinglimeandferroussulfate[J].WaterResearch,2003,37:2248-2250.[5],.[J].,2004,23(1):28-31.[](1982—),2009,。:13935113897,0351-6018380。E-mail:meng_hua_yuan@163.com。:,,,:0351-6014736,E-mail:lykang@tyut.edu.cn。[]2008-12-17()56——

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