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33*510006“———BAF”。COD2000~7000mg/L100mg/L33mg/L。COD5290mg/L2323mg/LCOD268mg/L。O3COD45%BOD5/COD0.30.44。COD66mg/L。MnO2-。X703Adoi10.3969/j.issn.1003-6504.2010.01.0431003-6504(2010)01-0174-04PilotStudyonHighConcentrationFoodAdditivesWastewaterCHENZhi-weiWANGXiao-jun*SchoolofEnvironmentalScienceandEngineeringSouthChinaUniversityofTechnologyGuangzhou510006ChinaAbstractAccordingtocharacteristicsoffoodadditiveswastewaterwithgreatvarietyofqualityandcomplicatedcompositionthecombinedprocessofhydrolysisacidification-contactingoxidation-catalyticozonization-biologicalaeratedfilterBAFwasproposed.ResultsshowedthattheeffluentCODcanfallbelow100mg/Lfromabout2000~7000mg/LofinfluentwiththeminimumeffluentCODas33mg/Landqualityofeffluentsatisfactorytointegratedwastewaterdischargestandard.AfterthetreatmentofhydrolysisacidificationsystemCODofwastewaterdecreasedfrom5290mg/Lto2323mg/Landthemolecularstructureofcompoundswhicharenonbiodegradablewaschangedintosmallermoleculeswhichcanmakethewastewatereasiertreatedbycontactingoxidationsystem.AverageeffluentCODofcontactingoxidationsystemwas268mg/L.CatalyticozonizationpreoxidationcouldimprovethebiodegradabilityofwastewaterwhoseBOD5/CODratefrom0.3upto0.44whenCODremoved45%.ThepilotstudyshowedthathydrolysisacidificationsystemandsystemwithcatalyticozonizationusingceramsiteenwrappedbyMnO2ascatalyst-BAFprocessarethekeyelementsofprocessfortreatinghighconcentrationfoodadditiveswastewaterwhichcanstablysatisfythewaterqualityofdischarginglimit.KeywordsfoodadditivewastewaterhydrolysisacidificationcontactingoxidationcatalyticozonizationbiologicalaeratedfilterBAF、、、。COD2000~7000mg/L、、。→→。。COD。“———BAF”。。11.1。2008-11-132009－01－311986-13560129303scutczw@yahoo.com.cn*13312800348cexjwang@scut.edu.cn。EnvironmentalScience&Technology33120101Vol.33No.1Jan.20101。UASB。--。1。1.21。1.3、pH、COD、BOD5、NH3-N[1]。。22.1“-”。COD7000mg/L。COD。。COD。2.1.1、、10%20%30%。2.1.23200814。。110℃。。。424~32℃。COD5290mg/L13505mg/L1785mg/L。CODCOD49.8%120.5%。COD268mg/LCOD87.7%。4COD94.5%COD98.6%COD66mg/LCOD93mg/L。14。。“-”20℃。20℃。2.2“-”1Table1ReactorandmainequipmentforpilotstudyHRT(h)1.2m×0.4m×1.3m541m×0.4m×1m361.6m×0.3m×0.8m350.6m×0.3m×0.6m(60L)6BAFΦ200mm×1500mm60.8m×0.4m×1.3m36214Table2TheoperationalstateofthesysteminJanuaryandAprilCOD(mg/L)BAF13505248577147229545290232326813666COD(%)CODCODCODBAFCODCOD120.568.875.638.0990.71449.887.794.551.698.617533。。、、、。LechengLei[2]COD92%。、。COD[3]。“-BAF”。2.2.1。MnO2、MnO2。MnO2。MnO2MnO2。1、pH、。MnO2MnO20.02g2g。pHMnO2。200mLMnO2MnO22g0.02gpHCOD2。2MnO2COD。pH=4COD3。5minMnO2。。MnO2MnO2。。2。[4]。COD4。。COD45%CODB/COD0.50.73CODBCODCODBBOD5[4]BOD5/COD0.30.44。2.2.2BAFBAF。4d、1761C：N：P=100：5：18d4dCOD。COD80%。BAFCOD5。COD136mg/L。HRT=6hCOD51.6%BAFCOD66mg/L93mg/L。HRT=6h。2.3“---BAF”。。63。31“---BAF”COD2000~7000mg/L100mg/L。2。24~32℃COD5290mg/L2323mg/LCOD49.8%。3COD45%BOD5/COD0.30.44。BAFHRT=6hCOD66mg/L93mg/L。4MnO2MnO2。[][1].[M].2003:126.XuXin-huaZhaoWei-rong.OzoneTreatmentofWaterandWastewater[M].Beijing:ChemicalIndustryPress2003:126.inChinese[2]LechengLeiLiGu.Catalyticoxidationofhighlyconcentrat－edrealindustrialwastewaterbyintegratedozoneandactivat－edcarbon[J].AppliedCatalysisAGeneral,2007,(327:287-294.[3].Fenton—[J].200626(11)28-31.GuXiao-yangWangXiao-jun.TreatmentofacidityrosereddyeingwastewaterbyFentonreagent-biologicalaeratedfilterprocess[J].IndustrialWaterTreatment,2006261128-31.inChinese[4].-[J].200627743-46.WangXiao-junLinDe-xianGuXiao-yangetal.Treatmentofdyecontainingwastewaterbyozonizing-biologicalaer－atedfilterprocess[J].TechniquesandEquipmentforEnvi－ronmentPollutionControl,200627744-46.inChi－nese3Table3ThequalityofinfluentandeffluentCOD(mg/L)(mg/L)()(NTU)pH2000~700037~4012033~40810028~107710015406~9177