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CEPT—MBBR何群彪1, 贾 磊2, 屈计宁1, 陈洪斌1, 王建翔1(1.同济大学环境科学与工程学院,上海200092;2.上海市环境科学研究院,上海200233) : 随着环保标准的日益严格,脱氮除磷成为污水处理的必然发展趋势,因此开发低成本、高效率、运行管理简单的脱氮除磷工艺具有重要意义。对化学强化一级处理联合流动床生物反应器(CEPT—MBBR)的脱氮除磷效果进行了中试研究。结果表明,CEPT—MBBR工艺脱氮除磷效果可靠,出水水质好,它不仅适用于有脱氮除磷要求的新建污水处理厂,也适用于对现有污水处理厂的升级改造,应用前景广阔。 : 低浓度生活污水; 脱氮除磷; 化学强化一级处理; 流动床生物反应器; 悬浮填料; 污泥产率; 毛细吸水时间:X703.1 :A :1000-4602(2006)15-0021-05StudyonTreatingLow-strengthDomesticWastewaterwithCombinedCEPT-MBBRProcessHEQun-biao1, JIALei2, QUJi-ning1, CHENHong-bin1, WANGJian-xiang1(1.SchoolofEnvironmentalScienceandEngineering,TongjiUniversity,Shanghai200092,China;2.ShanghaiAcademyofEnvironmentalScience,Shanghai200233,China) Abstract: Withmorestrictstandardsofwastewatertreatmentbeingset,theremovalofnutrientswillbeabasicrequirementforWWTPs.Itisveryimportanttodevelopnutrientsremovalwastewatertreat-menttechnologieswithlowcosts,highefficienciesandsimpleoperationmanagemen.tTheeffectsofnu-trientsremovalincombinedCEPT-MBBRprocessinapilot-scaleexperimentwerestudied.Theexperi-mentalresultsindicatethatthecombinedCEPT-MBBRprocesshasreliableeffectsonnutrientsremoval,withgoodeffluen.tItissuitablefortheconstructionsofthene Keywords: low-strengthdomesticwastewater; nitrogenandphosphorusremoval; CEPT; MBBR; suspendedcarrier; sludgeyield; CST :(863)(2003AA601020) ,。、,[1、2]。,,、,、、[3]。,(CEPT)(MBBR)21第22卷 第15期2006年8月 中国给水排水CHINAWATERWASTEWATER Vo.l22No.15Aug.2006CEPT—MBBR,CEPTTP、[4~7],MBBR,,[8~10]。1 工艺流程和试验方法1,100m3/d,1#。1 CEPT—MBBRFig.1 FlowchartofCEPT-MBBRcombinedprocess:CEPT()、MBBR。CEPT,。MBBR,/(),,50%。1。1 Tab.1 CharacteristicsofflocculantandsuspendedcarrierØ100mm,162m2/m3,,(PAC)(Al2O3)29%,80%,, 、。COD:;BOD5:;NH+4-N:;TN:();TP:();SS:;(CST):CST。2 试验结果及讨论2.1 ,,2。2 Tab.2 Mainparametersofcombinedprocess/℃/hCEPTMBBR/%/d30.2(4.1~4.4)∶11.220.862.47100~12015 : PAC28.6mg/L,50%。 1.5,0.92m3/(m2h)1.36m3/(m2h),SS。4.55h(),。3,。3 Tab.3 InfluentqualityofcombinedprocessmgL-1CODTNTPBOD519023.10.4524.12.4489143~24719.4~25.10.36~1.3420.8~26.51.90~2.812.2 ① COD2。COD83.2%,CEPTCOD38.0%,MBBR62.0%。COD22.1~42.8mg/L(31.9mg/L),《》(GB18918—2002)A。4BOD5。2 CODFig.2 RemovalofCODbycombinedprocess22第15期 中国给水排水 第22卷4 BOD5Tab.4 RemovalofBOD5bycombinedprocessBOD5/(mgL-1)/%CEPTCEPTMBBR684.923.892.894.5 BOD594.5%,BOD54.9mg/L,B/C0.15,SS,。MBBR()0.16kgBOD5/(kgSSd),MB-BR。② 、34。3 Fig.3 RamovalofNH3-Nbycombinedprocess4 Fig.4 RemovalofTNbycombinedprocess3,CEPT,MBBR。HRT2.47h,97.8%,0.21~1.32mg/L(0.50mg/L)。4,,54.4%,8.33~12.9mg/L(11.0mg/L)。,,GB18918—2002A。:MBBR1mg/L,2mg/L,,,。,,,,;,,(ORP),。,150%~200%,0.20~0.30mg/L,TN40%,10%。③ 5。5 Fig.5 RemovalofTPbycombinedprocess5,CEPT48.4%,0.70~1.52mg/L(1.26mg/L)。CEPTHRT1.22h(0.90h),。TP36.5%,0.54~0.98mg/L(0.80mg/L),TP,GB18918—2002B。,CEPT23第15期何群彪,等:CEPT—MBBR工艺处理低浓度生活污水的研究第22卷72%,MBBR28%。,、,、,,。MBBR,。2.3 ,CEPT———,、;MBBR,。,0.14kgSS/m3(),85.7%,14.3%,。《》[11],0.15kgSS/m3(,),0.175kgSS/m3,93%80%。,。CST,CST139.2s,42.5s,。,,0.1%~1%()。,PAC,20.4%(),。[12、13],,,。,,。2.4 ,0.41kWh;PAC2300/t,30mg/L,0.07/m3。5×104m3/d(,GB18918—2002B),1600/m3(、)。3 结论① 、,。5.9h(),COD、NH3-N、TN《》(GB18918—2002)A,TPB。② ,;,。③ ,、,,;,。④ ,。,、,,。:[1] .[J].,2005,(1):40-42.[2] ,.[J].,2004,(1):44-46.[3] ,,,.[M].:,2002.[4] .(CEPT)[J].,2002,18(1):26-29.[5] ,,,./[J].,2005,21(2):44-46.[6] AiyukSunny,AmoakoJ.Removalofcarbonandnutri-entsfromdomesticwastewaterusingalowinvestment,integratedtreatmentconcept[J].WaterRes,2004,38(13):3031-3042.[7]AhmedSafaaAbdelraouf,MohamedHassanSorour.Sim-ulationandoptimizationofchemicallyenhancedprimary/activatedsludgetreatmentforsmallcommunities[J].In-(下转第28页)24第15期 中国给水排水 第22卷0.710.69。⑥ 49.58μm24.96μm。:[1] CJ/T48—1999,[S].[2] ,,.IMBRNH+4-N[J].,2004,20(3):215-219.[3] ,,.[J].,2003,23(4):28-30.[4] ,,,.[J].,2002,23(5):62-66.[5]HoughtonJI,QuarmbyJ.Municipalwastewatersludgedewaterabilityandthepresenceofmicrobialextracellularpolymer[J].WaterSciTechnol,2001,44(2-3):373-379.[6] ,.[M].:,2002.[7] ,,.SMSBR[J].,2002,18(2):18-21.[8] ZhangBoran,YamamotoKazuo,OhgakiShinichiro,etal.Flocsizedistributionandbacterialactivitiesinmembraneseparationactivatedsludgeprocessesforsmall-scalewastewatertreatment[J].WaterSciTechnol,1997,35(6):37-44.:(1981- ), , , , 。:13941341802E-mail:lina218@126.com:2006-04-01(上接第24页) ternationalJournalofEnvironmentalStudies,2005,62(1):35-46.[8] ,,.A/A/O[J].,2004,20(11):14-17.[9] SatoTakaya,UeharaT.Newapplicationofpolyurethaneasporoushydrogelcarrierformicroorganismsofwaste-watertreatment[J].CellPolym,2004,23(3):145-159.[10] HosseiniSH,BorgheiSM.Thetreatmentofphenolicwastewaterusingamovingbedbio-reactor[J].ProcessBiochem,2005,40(3-4):1027-1031.[11] ,,.《》[J].,2005,31(7):15-18.[12] ChangGR,LiuJC,LeeDJ.Co-conditioningandde-wateringofchemicalsludgeandwasteactivatedsludge[J].WaterRes,2001,35(3):786-794.[13] LeeCH,LiuJC.Sludgedewaterabilityandflocstruc-tureindualpolymerconditioning[J].AdvEnvironRes,2001,5(2):129-136.:(1967- ), , , 、, 。:(021)65981372E-mail:leijia_1981@hotmai
本文标题:CEPTMBBR工艺处理低浓度生活污水的研究何群彪
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