高浓度柠檬酸生产废水处理

©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(1.,221116;2.,236018)22,BOD5CODCr95%,BOD558.5mg/L,CODCr304mg/L,pH=69,,TreatmentofhighconcentrationwastewaterfromcitricacidproductionZhuYiren1ZhouCang2WangJinhua1XieHengshen1GaoMingxia1(1.DepartmentofChemistry,XuzhouNormalUniversity,Xuzhou221116;2.AnhuiHuayuanBiologyMedicineIndustryCo.Led.,Fuyang236018)AbstractAnanaerobic2facultative2aerobicprocesshasbeenusedforthetreatmentofhighconcentrationwastew2aterfromcitricacidproduction.Morethan95%ofBOD5andCODCrcouldberemovedbythisprocess.Afterthetreat2ment,averagevaluesofBOD5CODCrandpHwere58.5mg/L304mg/Land69,respectively,whichcouldmeetdischargestandard.Moreover,thisprocessalsoproducesmethaneforenergysupplyofproductionandpeoplelife.Keywordscitricacidwastewater;aerobic;facultative;anaerobic:2003-06-29;:2003-08-23:(1946),,,,E2mail:[e-mail],40t,40%,80%,1t5060t,(t1015m3),,,,3t,2000t,,22,,,111,(,),11Table1ThewaterqualityofcitricacidproductionwastewaterCODCr(104mg/L)BOD5(104mg/L)pHSS(mg/L)()()2.53.21.31.6456282000600.060.250.040.1356120507022.1,,,,,59Vol.5,No.920049TechniquesandEquipmentforEnvironmentalPollutionControlSep.2004©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(3)(1/5)(25%,1),,[1],,,22,,2,,,2.22222Fig.2Technologicalflowofanaerobic2facultative2aerobictreatment,,,,,,H2S2.32.3.13000m3(1500017000),100(16),2420m3(9007000)2.3.2300m330m3,569:©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(5053),24h,3.0kgCODCr/m3d2h,6h,1.0kgCODCr/m3d,(2035),,22Table2EffectsofwastewatertreatmentCODCr(mg/L)BOD5(mg/L)pHCOD(%)BOD(%)29000160004--290013286990.091.72030929.66930.030.030458.56985.093.73506069--(GB8978288)3.23.2.122,,,,,,[2]CODBOD90%,,30%CODBOD,85%CODCr93%BOD5,,,2,,,3.2.2(6070),(3540),,,,COD,3850652[3],,5055,,3.2.3,,,,,,[4]4,800m31500m3,,CODCr193mg/L,BOD550mg/L,SS73mg/L,pH=69,,,,,1.0/m3(75)665©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(NH3H2O)(27%H2O2),pH=78H2O256mL/L,Fe/As,,,CaNH4AsO4NH32N,(NH3H2O)(27%H2O2),,,,[1]AaronD.Redman,DonaldL.MacaladyandDianneAhman.Naturalorganicmatteraffectsarsenicspecializationandsorptionontohematite.Environ.Sci.Technol.,2002,36:28892896[2].(3).:,1997[3]..:,1982(66),,1m3610m3(610kg),,,,,,,,,,522,:COD193mg/L,BOD50mg/L,SS73mg/L,pH=69,,,[1]..:,2002.144147[2],..:,2000.4849[3],,..,1996,15(8):2529[4],..:,1998.294295,298299579:22