AB工艺减少污泥重金属的效果林毅

2010,19(2):[e-mail]1962E-mail:[e-mail]2009-12-25AB//510100ABAB(GB428－84)ABAABA0.5mg·L-1500mg·L-1Cu2+87.6%Zn2+78.7%Ni2+51%1000~1500mg·L-1ABCu2+Zn2+Ni2+ABABABX703.1A1674-5906201002-0296-04A-B(Adsorption-Bio-ActivatedSludgeProcess)ABB.bohnkeAB(Ns=2~6kgBOD5/kgMLSS·d)AA(15~30min)ASSBOD5SS80%BOD540%ABOD5BBBBB(Ns=0.15~0.3kgBOD5/kgMLSS·d)2~5hAB1[4-9]Zn2+Cu2+Cd2+Ni2+ABAABBABAB市政管网排水东濠涌泵站厂内提升泵房沉砂池厂外集水输水渠箱A级曝气沉淀池B级曝气沉淀池A级回流污泥B级回流污泥出水珠江B级超越管A级超越管初雨超越管剩余污泥泥饼外运填埋污泥浓缩池污泥脱水机房1Fig.1TechnologyflowchartofGuangzhouLiedesewagetreatmentplantDOI:10.16258/j.cnki.1674-5906.2010.02.012AB2971100tAB2LD4-2A3OPTIMA4100PEAB100tABABABABAB100t2ABMLSS2000~3000mg·L-14.2m3·h-1CODCrBOD5BA500mg·L-1BAA1000mg·L-17dABAB4CODCrA0.5mg·L-11000mg·L-14CODCrAB1cmA1800×800×20001800×1800×2950B3400×2000×20905600×1200×22002AQ=4.2m3·h-1BQ=4.2m3·h-13AT=33minBT=3.7h4ADO=0.5mg·L-1BDO=2.0~4.0mg·L-1AB2AB100A0.5mg·L-1500mg·L-143dABACu2+A87.6%Zn2+78.7%Cd2+92.67%Ni2+51%BAB1AAB12ABTable1PrimaryingredientsofsludgefromGuangzhouLiedesewagetreatmentplantw()/%w(T-N)/(g·kg-1)w(T-P)/(g·kg-1)w(Cu)/(mg·kg-1)w(Zn)/(mg·kg-1)w(Cd)/(mg·kg-1)w(Ni)/(mg·kg-1)8237.818.219302130124202Fig.2TechnologyflowchartofthetestfieldA曝B曝中沉二沉进水出水回流污泥回流污泥剩余剩余超越管29819220102ABBCu5(GB428－84)ZnCd5mg·kg-1()20mg·kg-1()BCdABNiABABABAA250~4000mg·L-1AA250mg·L-1500mg·L-1A1000~1500mg·L-1A0.5mg·L-1ABACu2+Zn2+Ni2+Cd2+0.5mg·L-1A1000~1500mg·L-1BCu2+Zn2+Ni2+ABABB[1],,.[J].,2003,12192-95.MaNa,ChenLing,XiongHui.DisposalandReuseofCitySludgeinChina[J].EcologyandEnvironment,2003,12192-95.[2].[M].,1997.GuGuo.ResearchonWaterPollutionControlTechnology[M].Shanghai:PublshingofTongjiUniversity,1997.[3].[C]//.,1997:209-210.[4],,.[J].,1992,8(4)20-22.WuQitang,LinYi,ZengHaien.StudyonusingcompoundfertilizerbinderbyMunicipalsewage[J].2ABABTable2HeavymetalcontentintheactivesludgeofsectionAandBintheABtechnologytestmg·kg-1AB2015235194023019752351864246Cu2+179819182442382547513243148724575012319453Zn2+22572402476486353245283405Cd2+353264.740578.940477.639880.341183.0Ni2+41840784.080.7AB299[5],,鈖.[J].,1994,25(3)126-129.ZhouLixiang,HuAitang,GeNaifen.ChineseJournalofSoilScience,1994,25(3):126-129.[6],,,.[J].,2000,11(1)157-160.MoCehui,WuQitang,CaiQuanying,etal.UtilizationofMunicipalSludgeinAgricultureandSustainableDevelppment[J].ChineseJour-nalofAppliedEcology,2000,11(1)157-160.[7],,,.[J].,1997,10(3):46-49.CaoRenlin,HuoWenrui,JiaXiaocai,etal.StudyontheEnviron-mentalImpactofSludgeCompostUtilizationonGreenArea[J].1997,10(3):46-49.[8].[J].,1997(2):51-54.TanTiepeng.AnalysisofWasteWaterSludgeReclamationandReuseTechnology[J].YuNanEnvironmentalScience,1997(2):51-54.[9],,,.[J].,1994,13(1):23-25,33.LinChunye,DongKeyu,LiPing,etal.Agro-environmentalProtec-tion,1994,13(1):23-25,33.Effectsofreducingheavy-metalinwasteactivedsludgethroughA-BProcess(Adsorption-Bio-ActivatedSludgeProcess)LINYi,MENGQingqiangGuangzhouUrbanDrainageMonitoringStation//GuangzhouWaterQualityMonitoringCenter,Guangzhou510100,ChinaAbstract:Inthisstudy,heavymetalswereremovedfromsewageandreducingsludgebyApartofABprocess,sothatitcouldreachthestandardofagriculturaluse(GB428－84)inBprocess.AasimulatingexperimentinminiaturewasusedforresearchinghowtoeffectivelyremovedheavymetalduringAandoptimizedoperationalparameterinA-Bprocess.TheresultsshowthattheremovalrateofCu2+Zn2+Ni2+canreach87.6%78.7%51%respectively,whenthedissolvedoxygenis0.5mg·L-1andthesludgeconcentrationisabout500mg/L.Whenthesludgeconcentrationis1000~1500mg·L-1,thesettlingpropertyofthesludgeisim-provedafterAprocess.Italsocaneffectivelyremoveheavymetalandpreserveorganicmatterfromthewastewater.IntheBprocess,theconcentrationofCu2+Zn2+Ni2+intheresidualsludgecanreachthestandardsofacidicsoilsludgecontrolonthewhole.Therefore,itisfeasibletosatisfythestandardsofagriculturecontrolbycontrollingtheparametersofA-Bprocess.Anditcouldbe-comeaeffectivewayofdisposingandutilizingsludgethroughthetreatedsludgeutilization.Keywords:ABprocess;sludge;heavy-meta;removal