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1/412。2007110Gt11Gt10%。———。。、、、、、、、、、。。O1/A/O220066。、GB8978-1996[1]。、。。12125m3·d-16000m3·d-14600m3·d-1。COD≤1000mg·L-1BOD5≤350mg·L-1ρ(NH4+-N)≤160mg·L-1ρ(SS)≤250mg·L-1pH=6~9。COD≤100mg·L-1BOD5≤30mg·L-1ρ(NH4+-N)≤15mg·L-1ρ(SS)≤70mg·L-1pH=6~9。2O1/A/O21。、。O1、O/A/O11221.5100062.443000--O1/A/O2、COD、NH4+-N62459.3mg·L-1COD100mg·L-134.5mg·L-193.2%15mg·L-10.8mg·L-198.7%GB8978-1996。、TN、O1DO、。X78A1000-3770(2011)05-0095-0042010-11-16“”2008BAE64B051986-15820291437E-mailphp999@126.com13535279381E-mailfesqzhou@scut.edu.cn37520115TECHNOLOGYOFWATERTREATMENTVol.37No.5May,201195。、。A/O2。。33.1O1O1。、。、O1COD。23O11COD、NH4+-N。2O1COD。COD40%~80%60%68.4%O1/A/O2O140%COD[2]。212O1HSBEMBMCOD[3]。3O115%。。A/Om(BOD5)/[m(MLSS)t]0.25kg·kg-1·d-1[4]。O10.30kg·kg-1·d-1。O1COD。CODO1COD。3.23.2.1CODO1/A/O2[5]。O1DO1~2mg·L-1O2DO2~4mg·L-1。、。41COD。4COD100~1200mg·L-11Fig.1Flowchartoftreatmentprocessofintegratedwastewater O O A 2O1CODFig.2CODremovaleffectofO10510152025303502004006008001,0001,200020406080100/%O t/dO COD/mg L COD3O1Fig.3AmmonianitrogenremovaleffectofO105101520253035025507510012515001020304050/% t/d (NH -N)/mg L 4CODFig.4CODremovaleffectofO1/A/O2process COD/mg L /% t/d 37596624mg·L-1。COD60mg·L-134.5mg·L-190%93.2%。3.2.22。DO、、pH、[6]。O1O2。O2DO2~4mg·L-1、pH7.4~8.0、COD100mg·L-1、SRT15d、30℃。。51。19.9~117mg·L-159.3mg·L-1。598.7%0~7.5mg·L-11.0mg·L-10.8mg·L-1GB8978-199615mg·L-1。44.1COD、90%TN40%。TN90%TN95%[7]。TNTN40%。、。4.1.1O1/A/O2COD、O1。O1COD60%CODO1COD200mg·L-1。CODA。O1DO、COD。4.1.2。O2。DO[8]。A2/O200%COD、、TN、TP88%、97%、73.8%、65.1%[9]。TN3:14:1TN[10]。DO。TN。4:1TN。150%~250%TN。4.1.3COD/NBOD/N。m(C)/m(N)5~15[11]。BOD5/TN>4m(C)/m(N)8[7]。5Fig.5AmmonianitrogenremovaleffectofO1/A/O2process /% t/d NH -N/mg L O/A/O97STUDYONOPERATIONOPTIMIZATIONOFO1/A/O2PROCESSFORTREATMENTOFCHEMICALINTEGRATEDNITROGEN-CONTAINEDWASTEWATERPengHuaping1,ZhouShaoqi1,SunZhenxing2,ZhangZhanli2(1.CollegeofEnvironmentalScienceandEngineering,SouthChinaUniversityofTechnology,Guangzhou510006,China;2.HubeiYihuaGroupCo.Ltd.,Yichang443000,ChinaAbstract:TheO1/A/O2processwasusedtotreatthechemicalintegratednitrogen-containedwastewater.TheinfluentaverageconcentrationsofCODandNH4+-Nwere624mg·L-1and59.3mg·L-1respectively.TheeffluentCODwaslessthan100mg·L-1,theaveragewas34.5mg·L-1witharemovalrateof93.2%.Theeffluentammonianitrogenwaslessthan15mg·L-1theaveragevaluewas0.8mg·L-1witharemovalrateof98.7%.ItseffluentreachedthefirstclassofIntegratedStandardofWastewaterDischarge(GB8978-1996).Thetotalnitrogenremovalratewasonly40%.Combiningwiththeactualoperationstatusofprocessthereasonsoflowde-nitrificationabilitywereanalyzed.Andcorrectivemeasureswerebroughtup.Keywords:fertilizerwastewater;chemicalintegratedwastewater;ammonium;biologicalnitrogenremoval2O1COD200mg·L-1TN54mg·L-1m(C)/m(N)3.7。CODm(C)/m(N)。m(C)/m(N)。4.2。1。“”、。2O1DOCOD。3400%150%~250%、O2DO。5O1/A/O2COD、COD34.5mg·L-10.80mg·L-1GB8978-1996COD100mg·L-1、15mg·L-1。O1/A/O2。。TN40%。、O1DO、TN。[1]GB8978-1996[S].[2],,.O/A/O[J].,2003,16(4):16-17.[3],.+O-A-O[J].,2005,21(4):79-81.[4].A/O[J].,2003,34(3):51-53.[5],,.O/A/O[J].,2000,16(6):36-38.[6].[J].,2007,20(1):41-42.[7],,,.A-A2/O[J].,2008,31(12):150-152.[8]YuanZG,AddrianO,PemilleI.Controlofnitraterecirculationflowinpre-denitrificationsystems[J].WatSciTech.,2002,45(4/5):29-35.[9],,.A2/O[J].,2009,35(8):59-62.[10],,.TN[J].,2009,35(10):7-8.[11]ZhouShaoqi.Stoichiometryofbiologicalnitrogentransformationinwetlandsandotherecosystems[J].BiotechnologyJournal,2007,2(4):497-507.37598
本文标题:OAO工艺处理化工综合含氮废水运行优化研究
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