电解法深度处理维生素C类发酵废水外排水研究谢吉程

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StudyonadvancedtreatmentofthebiologicaleffluentwastewaterfromascorbicacidfactorybyelectrolysisprocessXieJicheng,XuKe,DingLili,RenHongqiang(StatekeyLaboratoryofPollutionControlandResourcesReuse,SchoolofEnvironment,NanjingUniversity,Nanjing210093,China)C,,,(,210093)[]2。TOC,:5min、6A、pH7、25mm。2,,TOC、COD、《》(GB21903—2008),。[]C;;;[]X703.1[]A[]1005-829X(2010)08-0023-04Abstract:Underlaboratoryconditions,electro-chemicaloxidationandelectrolyticflocculationprocessesusedfortreatingtheeffluentfermentedwastewaterhavecarriedthroughexperimentally.Orthogonalexperimenthasbeencar-riedthroughforinvestigatingthefactorswhichinfluencestheTOCremovalrateofelectro-chemicaloxidation.Theoptimalparametersareasfollows:electrolysistime5min,currentintensity6A,pH=7,andthedistanceofelectrodes25mm.Comparedwithelectrolyticflocculationtreatment,theelectro-chemicaloxidationtreatmenthasbettersyn-thetictreatmentresults.TheindexesofTOC,COD,andtotalphosphateinwatercanmeettherequirementsoftheDischargeStandardofPollutantsfromZymoticPharmacyIndustry,GB21903—2008.Thetotalnitrogenhasallbeenconvertedintoinorganicnitrogen.Keywords:ascorbicacidwastewater;electrolysis;advancedtreatment;chromogenicsubstance[]863(2009AA033003);(BK2009513);(20080441030)C,。C-。200881,《》(GB21903—2008)〔1〕。,。,,。C、,2,2。,,。,-。11.1C30820108IndustrialWaterTreatmentVol.30No.8Aug.,201023——2010-08,30(8),-,(8047.5mg/L);TOC、、、COD。《》(GB21903—2008)1。1.2:(100mm×200mm×160mm)3L,3(100mm×200mm),,。3~7V,0.1V。,。:,3L,6,100mm×100mm。1~30V,0.5V。1.3,———、、pH、。,9A,10min。,L9(34),TOC(ΔTOC),(3、6、9min),(3、6、9A),pH(4、7、10),(15、25、35mm)TOC,。,TOC,,。1.4COD、、TP、TN、〔2〕;M299422;TOCTOC-VASH。。-UV-2550-。,TOC,TOC。22.12.1.1TOC71.69mg/L,2。2,TOC,9minTOC57.73mg/L。4pH。:9min,6A,pH10,25mm。2.1.2,。(1)。pH7,25mm,3A6A,TOC1。1,,TOC,2min,TOC;3min,3ATOC,6A2/min/ApH/mm△TOC/(mg·L-1)1334151.0623672545.85339103541.8746373517.63566101541.8466942536.48793102556.3389643554.1199971557.73K129.5925.0130.5533.54352.9K244.8847.2740.4046.22K356.0647.1146.6837.87R26.4722.2616.1312.681pH/COD/(mg·L-1)TOC/(mg·L-1)NH3-N/(mg·L-1)NO3-/(mg·L-1)TN/(mg·L-1)TP/(mg·L-1)6~935136.11101.7865.7680.915.526~9601204035701.0:pH。24——2010-08,30(8)TOC,。,。〔3〕,,,,/〔4〕。,。6ATOC,TOC,TOC,。,6A,,5minTOC(37.62mg/L)TOC。(2)pH。,pH2、7、12,2。2,pH12,TOC32.01mg/L。pH,,pH7,TOC32.31mg/L。2.2,10A(2V)5A(1.5V),pH7,TOC154.9mg/L。1minTOC1。TOC3。3,,10ATOC60%~70%,,。,,〔5〕。,,,,,,,。2.3TOC,3。3,23TN/(mg·L-1)TN/%NO3-/(mg·L-1)NO3-/%TP/(mg·L-1)TP/%COD/(mg·L-1)COD/%//%TOC/(mg·L-1)TOC/%79.29277.68-18.12.5455.964.053.0109037.647.665.6818.863.2144.5317.9106.119.41071.444.871.1TP、TOC、COD、。,,〔6〕。TN,NO3-,,〔7〕。TN,CODTP。,TOCTOC,,TOC,COD。4。4,3%。,,,。,,:C25——2010-08,30(8)。2.4--,5。6min,1min1,,240~380nm2。6。5,250~350nm,〔8〕;。6,,270nm。56,6min,270nm45.6%。:270nm,。3000〔8〕;3000,。,270nm。3(1),C:5min、6A、pH7、25mm。TOC、COD、;TP55.9%,TN,。(2)CTOC70%,TP。(3),。(4)-,,270nm。[][1]GB21903—2008[S].[2].[M].:,2002:200-285.[3]TsaiCT,LinST,ShueYC,etal.Electrolysisofsolubleorganicmatterinleachatefromlandfills[J].WaterResearch,1997,31(12):3073-3081.[4],,.TiO2/CPE[J].,2001,17(4):372-376.[5]BalmerLM,FouldsAW.Electroflocuulation/Electroflotationfortheremovalofoilfromoil-in-wateremulsions[J].FiltrationandSep-aration,1986,23(1):366-370.[6],.[J].:,2000(3):41-44.[7],,.[J].,2006,22(15):95-97.[8],.UV254[J].,2002,24(2):61-65.[](1985—),。:15920956004,E-mail:xxjc@163.com。[]2010-03-19()5543210200400600/nm26——

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