高氯离子味精尾母液废水厌氧处理研究兰天

2　8环境工程学报Vol.2,No.820088ChineseJournalofEnvironmentalEngineeringAug.2008兰　天1　李东伟1,2＊　高先萍1(1.,400030;2.,400030)　　COD。UASB,UASB。:4500mg/L,;5000mg/L,,COD;8000mg/L,COD80%。　　　　UASB　X703.1　　　A　　　1673-9108(2008)08-1074-04ExperimentalstudyonanaerobictreatmentoffermentationmotherliquidofmonosodiumL-glutamatewithhighchlorideconcentrationLanTian1　LiDongwei1,2　GaoXianping1(1.CollegeofResourceandEnvironmentalScience,ChongqingUniversity,Chongqing400030;2.KeyLaboratoryoftheExploitationofSouthwestResourcestheEnvironmentalHazardsControlEngineering,MinistryofEducation,ChongqingUniversity,Chongqing400030)Abstract　AstudyofanaerobictreatmentoffermentationmotherliquidofmonosodiumL-glutamatewithhighchlorideionconcentrationwascarriedoutusingalaboratory-scaleUASBreactor.ThereactorwasseededwithanaerobicsludgeobtainedfromaUASBtreatingbrewagewastewater.Theresultsindicatedthattherewasnoevidentinhibitionperformancewhenthechlorideionconcentrationwasbelow4500mg/L,whileinhibitionlevelobtainedatachlorideionconcentrationof5000mg/L,however,apreferableCODremovalratecouldbea-chievedafteracclimation.TheaverageCODremovalratecouldbeabove80%whenthechlorideionconcentra-tionwasashighas8000mg/L.Keywords　fermentationmotherliquidofmonosodiumL-glutamate;highchlorideionconcentrationwastewater;anaerobicbio-treatment;UASB:2007-12-13;:2008-01-17:(1983～),,,。E-mail:[e-mail]＊,E-mail:[e-mail]　　。:pH1.8～3.2,COD30000～70000mg/L,BOD520000～42000mg/L,SS12000～20000mg/L,NH3-N500～7000mg/L,SO2-4Cl-8000～9000mg/L,0.2%～1.5%,1%[1]。COD,。,,,。,、、[2]。。、。,,:(1),,;(2),;(3);(4),[3]。,Cl-。,,,。,8　:。1　1.1　UASB,,,。5.15L,4.50L。80mm,800mm,3.50L;120mm,150mm,1.0L,22.2%。,45°,50mm,,5mm。1.2　。,。1。1　Table1　CharacteristicsofmonosodiumL-glutamatewastewater(10m3/d)(45m3/d)(45m3/d)COD(mg/L)100000～2000007000～9000100pH3.09.0～10.00.5～1.5Cl-(mg/L)70000～80000-7000～8000,COD;10～20;,COD。。1.3　COD:;Cl-:;pH:pHB-8pH;:。1.4　1.4.1　厌氧静态实验UASB。,,。2UASB,1,pH,,pH5.0;2pH。,COD,,。23。2　1、Table2　Influentandeffluentcharacteristicsduringstaticexperimentinreactor1COD(mg/L)pHCl-(mg/L)COD(%)122004.52000-1d12735.52000422d2614.62000793d1276.7200051223005.02000-4d5806.72000755d3303.8200043322004.72000-6d11053.52000501,2,pH,。3,,pH4,,,。3　2、Table3　Influentandeffluentcharacteristicsduringstaticexperimentinreactor2COD(mg/L)pHCl-(mg/L)COD(%)122607.22000-1d6337.22000722d2377.52000633d1336.7200044223007.02000-4d3987.22000835d1407.02000656d1357.120003.52COD,2,COD。pH。3:(1),,;(2)2000mg/L,;(3)Ca(OH)2,。1.4.2　厌氧连续运行实验:,pH。Cl-2000mg/LUASB。10752UASB,30%。,,[4]。CODCl-,UASBCOD3000mg/L,Cl-4000mg/L。。,UASB,COD,Cl-,pH。2　2.1　14d,COD,18d,UASB。12。1～8d,CODCOD,7～11dCOD,。11～18d,89.7%～96.7%,。Cl-2000mg/L4500mg/L。4500mg/L,,。,[5]UBFCl-,Cl-3000mg/L,24h,COD85%。Cl-300～700mg/L,20d。Cl-4500mg/L,,。2.2　,,COD2700～3300mg/L,Cl-,COD34。,5000mg/L,COD,,,29～31d,,59.69%～61.29%。31d,2,。5d300mg/L,COD。42d92.94%,:COD2962mg/L,COD209mg/L,Cl-7399mg/L,2.96kgCOD/(m3·10768　:d),CaCl21%。10d,Cl-7400mg/L7800mg/L,COD85%,,68.92%。,COD,[6]。UASB8000mg/L9d,COD80.52%,。,。,10000mg/L,[7]。,(30g/LNaCl)[8]。[9]。2.3　、pH(,mgCaCO3/L),56。pH,pH,,pH6.9～8.2,pH,6.4～7.2。46d,7500mg/L,pH,6.4。21d30d,,,,50mgCaCO3/L,,。600～1000mgCaCO3/L,,。3　　(1)Cl-4500mg/L,,UASB,COD90%。(2)5000mg/LCl-,,COD,,Cl-。Cl-,。(3)UASBCl-5000mg/L,,,COD。,。(4)Cl-8000mg/L,COD80.52%。COD。[1],,..,2001,2(2):81～90[2]OlivierLefebvre,RenéMoletta.Treatmentoforganicpollu-tioninindustrialsalinewastewater:Aliteraturereview.WaterResearch,2006,40(20):3671～3682[3]..,2004,24():209～211[4]..:,2000[5],,,..(),2003,16(2):34～38[6]ThongchaiPanswad,ChadarutAnan.Impactofhighchlo-ridewastewateronananaerobic/anoxic/aerobicprocesswithandwithoutinoculationofchlorideacclimatedseeds.WaterResearch,1999,33(5):1165～1172[7],,..,1998,17(9):8～10[8]HamodaM.F.,Al-AttarI.M.S.Effectsofhighsodiumchlorideconcentrationsonactivatedsludgetreatment.Wa-terScienceandTechnology,1995,31(9):61～72[9],,,..,2002,12(2):17～191077