AOR工艺的设计研究高俊发

AOR高俊发　高霞娥(,710054)　AOR是传统活性污泥法与氧化沟结合的一种新型生化反应器。具有较高的脱氮除磷功能,同时独特的污泥恢复区的设计,使得回流污泥集中适当充氧,另外采用同心圆结构,使每个区形成循环流态,因此是一种高效、节能、适应性强的污水处理工艺。在对AOR反应器分析研究的基础上,提出满足生物脱氮除磷的动力学设计研究方法,并对其设计计算公式进行推导。　AOR　生物脱氮　设计计算1　AORAOR1。1　AOR2,AOR3,,2,(R),(A),(O)。R,,(A),,,。A,,。(),。2　AORAOR、、。AOOA,,3。,、,,。、、。3　2　、3。,,,。,,。、,,,。,AOR,。3　3.1　好氧区(O区)体积V1计算3.1.1　μo:μo=0.47×1.103(t-15)　μo———　d-1;t———,10℃,11～12℃,10℃。7　　　20078254DOI:10.13205/j.hjgc.2007.04.0013.1.2　θdcN:θdcN=F1μo　θdcN———　d;F———,1.5～2.5,2.3;1μo———　d。3.1.3　Y:Y=K×0.6NjS0+1-0.072×0.6θdcNFT1+0.08θdcNFT:FT=1.072(t-15)　Y———　mgmg;Nj———　mgL;FT———;S0———BOD5　mgL;t———,;K———,K=0.8～0.9。3.1.4　HRT1:HRT1=θdcNY(S0-Se)Xv　HRT1———　d;Xv———　mgL,3000～5000mgL,3000mgL;Se———BOD5　mgL。3.1.5　V1:V1=HRT1·Q　V1———　m3;Q———　m3d。3.2　缺氧区体积V2计算3.2.1　qDT:qDT=qD20×θ(t-20)　qDT———t℃　mg(mg·d);qD20———20℃,mg(mg·d),0.03～0.11,0.05;t;θ———,,1.06～1.15,θ=1.09。3.2.2　:=++:Q·TN=(r+R)QSNOX+0.05Q(S0-Se)+QSNOX:SNOX=TN-0.05(S0-Se)1+R+r　SNOX———　mgL;TN———　mgL;R———,50%～100%;r———,200%～400%。3.2.3　HRT2:HRT2=SN-SNOXqDTXDN　HRT2———　d;SN———NO-3-N　mgL;SNOX———NO-3-N　mgL;XDN———　mgL。3.2.4　V2:V2=HRT2·Q3.3　污泥活性恢复区(R区)体积V3的计算4　R(R),,,,,AOR,,。4。8　　　200782543.3.1　Xr:Xr=106SVI·f　Xr———　mgL;SVI———　mLg;70～110,100;f———,f=MLVSSMLSS;0.7～0.8,0.75。3.3.2　Y:Y=K×0.6NjS0+1-0.072×0.6θdcNFT1+0.08θdcNFT:FT=1.072(t-15)(:3.1.3)3.3.3　Y0:Y0=Y1+Kd·θc　Y0———,;Kd———,0.05　d-1;θc———,　d,θc=F1μ0,(:3.1.1,3.1.2)。3.3.4　ΔX:ΔX=QY0(S0-Se)　ΔX———　mgd;Q———　m3d;Y0———;S0———BOD5　mgL;Se———BOD5　mgL。3.3.5　R,:R:Xs=Xr+ΔXQR　Xs———　mgL;ΔX———　mgd;R———　R=XcXs-Xc;Xc———　mgL,3000mgL。3.3.6　,:RQXr-RQXs+YRQSe+YfQS0-VRKdXs=0　RQXr———R　mg;RQXs———RAOR　mg;YROSe———RMLVSS　mg;YfQS0———RMLVSS　mg;f———R,0.8;VRKdXs———BOD5MLVSS　mg。,:VR=RQ(Xr-Xs+YSe)+YfQS0KdXs　VR———(R)　m3。4　,、:Nj、S0、Se、t、TN、R、r、XDN、Xv、SVI。,R、r,。,AORfDN=R+rR+r+1。BOD5200mgL,TN40mgL,10℃,Nj200mgL;BOD520mgL,Q5000m3d,fDN=R+rR+r+1。(12)9　　　200782545　(1),,,,,。,。(2),,,,,。,;、。6　(1)++++,,,,,,。(2)、;,、,。[1]　..,2005,21(7):89-91.[2]　..,1999-05,19(3):5-8.[3]　,..,2006,22(5):40-42.　　730000　211　　　100083　30　　(010)62234821E-mail　[e-mail]2007-01-26(9)4.1　各区体积比计算fDN71.4%,R50%,r200%:V1∶V2∶VR=0.38Q∶0.49Q∶0.08Q;fDN83.3%,R100%,r400%:V1∶V2∶VR=0.38Q∶0.55Q∶0.11Q。4.2　各区体积比及污泥活性恢复区占总内圆的角度(θ)值的结论5　:V1∶V2∶VR=1∶(1.29～1.45)∶(0.21～0.29),VRV2,fDN83.3%,R100%,r400%,θ60°,(θ)60°,R,。5　,,5∶1。BOD5200mgL,TN40mgL,10℃,Nj200mgL;BOD520mgL,Q5000m3d,AOR0.85,V1∶V2∶VR=0.38Q∶0.55Q∶0.11Q,5,:V1=0.38×5000=1900(m3);V2=0.55×5000=2750(m3);VR=0.11×5000=550(m3)。,R1=13.8m,R2=17.3m,θ=60°。[1]　..,2003,19.[2]　,..::156-158.[3]　,..,2001,17.[4]　,.A2O().,2003,29.[5]　,.A2O().,2003,29.[6]　..:,1993,7:119-123.　　710054　　416#　[phone]E-mail　[e-mail];[e-mail]2007-01-1712　　　20078254THERESEARCHONDESIGNOFAORPROCESSGaoJunfa　GaoXiae(7)………………………………Abstract　AORisanewbiochemicalprocessthatcombineswithtraditional-activatedsludgeprocessandoxidationditch.Ithasbetterfunctionofnitrogenandphosphorusremovals,anditsuniquedesignofsludgerenewalregion,makesthereturnsludgecentralizedwithappropriateoxygenation,meanwhileeachregioncanengenderflowstatewithconcentriccirclesadopted.Accordingly,itisasortofwatertechnologywithhighefficiency,energysavingandbetteraccommodation.AfterthestudyofAORprocess,thedynamicdesignmeetingbiologicalphosphorusandnitrogenremovalisproposed,andtheformulasusedtodesignandcalculatearededuced.Keywords　AOR,biologicaldenitrificationanddesign&calculationTHEDESIGNANDOPERATIONOFADVANCEDTREATMENTANDREUSEOFSECONDARYEFFLUENTOFCITYSEWAGEDISPOSALPLANTWangRongbin　WangCuiping　XingYietal(10)……………………………………………………………………………………………………………………………………………Abstract　Reusingmunicipalsewageascirculatingcoolingwaterinindustryhasbecomeoneofthemostlyschemestoresolvetheshortageofwaterallovertheworld.However,thequalityofsecondaryeffluentcannotmeetthestandardofcirculatingcoolingwateraboutCODCr,hardness,nitrogenandphosphor,anditmaybereusedbyadvancedtreatment.Abio-contactoxidation-flocculationsedimentation-mixingclarification-continuousdynamicfilter-disinfectionprocesshasbeenadoptedinthisproject,andtheeffluenthasbeenusedasmake-upwatertocirculatingcoolingsysteminanelectricpowerplant.Thepracticaloperationresultshowsthattheprocesshashighefficiencyandalittleenergyconsumption.Thequalityofeffluentmeetsthemake-upwaterqualitystandardofindustrialcirculatingcoolingwater.Bytheimprovementonprocess,theoperationismoresimple,andtherunningoftheequipmentismorestable.Keywords　reuse,circulatingcoolingwater,continuousdynamicfilterandsludgedewateringbedAPPLICATIONOFHIGH-EFFICIENCYCLARIFIERINREFORMOFWASTEWATERTREATMENTPROJECTLiuJianbin　ChuShangye　FanFeietal(13)………………………………………………Abstract　ThecurrentsituationofthewastewatertreatmentsystemforDandongChemicalFiberStockCompanyisintroducedandtheexistingprocesscannotmeettheactualneeds,sothewastewatertreatmentsystemshouldbereformed.Thehigh-efficiencyclarifierisusedinsteadoftheoriginalmechanicstirringclarifier,whichimprovesthemixedreactionefficiencythustheprocessofwastewatercapacityandwastewaterquality.Itisprovedthatthehigh-efficiencyclarifierisapplicabletochemicalfiberwastewatertreatment.Keywords　mechanicstirringclarifier