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,,.SUFR[J].,2005,25(4):512-518LUOGuyuan,JITiejun,DOUJunfeng.Lowtemperatureeffectsonbiologicalnutrientremovalinspiralup-Flowreactorsystem[J].ActaScientiaeCircumstantiae,2005,25(4):512-518SUFR罗固源*,季铁军,豆俊峰重庆大学三峡库区生态环境教育部重点实验室,重庆 400045:(8~20℃)(SpiralUp-FlowReactor,SUFR).SUFR,(COD)TN,(COD)TN86%、70%.TP92%.、.,.,SUFR..:;;;;:0253-2468(2005)04-0512-07,:X703.1,:ALowtemperatureeffectsonbiologicalnutrientremovalinspiralup-Flowreactorsys-temLUOGuyuan*,JITiejun,DOUJunfengKeylaboratoryoftheThreeGorgeReservoirRegionsEco-Enviroment,MinistryofEducation,ChongqingUniversity,Chongqing400045Abstract:Overalleffectsoflowtemperaturesbetween8and20℃ontheSpiralup-flowreactor(SUFR)systemwereanalyzed.TheresultsoftheoperationunderpsychrophilicconditionshowedthattheremovalefficienciesofCODandTNwerekeptover86%and70%,whereastheremovalefficienciesdecreasedwithlowertemperature.TP-removalefficiencywasalwaysupto92%atlowtemperatures.AndactivatedsludgeoftheSUFRsystematlowtemperaturescouldhardlybecom-pressedandsettled.Althoughnoanycontrolmethods,thesludgesettleabilitywasrecoveredquickly.ItwasindicatedthatthenegativeeffectsoflowtemperaturewerecompensatedbythecharacteristicoftheSUFRsystem,whichwassimilartoplug-flowreactor.TheoptimaltemperaturerangeoftheSUFRsystemappearedwidelyapplicablefield.Keywords:SpiralUp-FlowReactor;lowtemperatureeffect;biologicalnitrogenandphosphorsremoval;plugflow;characteristicsofthesludge:2004-04-18;:2004-09-03:(50378095);“”(2001BA01-03-01):(1944—),,(),Gyluo@cqu.edu.cn;*() .,.[1],,,.[2],,15℃,.[3],,15~35℃.,Shaprio[2],,.D.Baetens[4]SBR,15~20℃,.,.[5]CASS,.、.,,.,、、、,.,,.25420054 ACTASCIENTIAECIRCUMSTANTIAEVol.25,No.4Apr.,2005DOI:10.13671/j.hjkxxb.2005.04.015UCT(UniversityofCapetown),“”(SpiralUp-FlowReactor,SUFR).[6]:,..SUFR(20℃).1 1.1 试验装置SUFR[6].SU-FR,.,[6].、15cm、15cm、9cm.,-.,13cm,120cm,16L;19cm,85cm,24L;19cm,160cm,45L.:9L·h-1;150%;200%~250%;50%~80%;SRT=20d.1.2 试验水质及分析方法KH2PO4、、.(COD)60%,1.1 Table1 SyntheticwastewatercompositionandanalysismethodCODCr(mg·L-1)PO3-4-P(mg·L-1)TP(mg·L-1)NH+4-N(mg·L-1)TN(mg·L-1)pH260~3503.2~6.65.2~7.527~3635~556.8~7.23285.46.532467HACH-COD()--PHS-3C2 2.1 低温影响下SUFR系统对耗氧有机物(以COD计)的去除1(COD).1,,COD260~350mg·L-1,COD10~36mg·L-1,(COD)88%~96%.,20℃8℃,COD38mg·L-1103mg·L-1,COD22mg·L-154mg·L-1,(COD)6mg·L-137mg·L-1.2.2 低温影响下SUFR系统对总氮及氨氮的去除2.2,35~55mg·L-1,2~9.5mg·L-1,0.6~4.8mg·L-1.20℃8℃,95%70%,99%74%.2.3 低温影响下SUFR系统对磷的去除3.3,5.2~7.5mg·L-1, 1 (COD)Fig.1 TemperatureeffectsonCODremoval2 Fig.2 TemperatureeffectsonTNandNH3-Nremoval5134:SUFR0.07~0.36mg·L-1,0.13mg·L-1.92%.3,20℃8℃,,21mg·L-18mg·L-1.3 Fig.3 Temperatureeffectsonphosphorusremoval2.4 低温影响下SUFR系统污泥特性的变化SUFR(SettlingVelocity,SV)(SludgeVolumeIndex,SVI) 4.4,20℃,SVI104~128.8~12℃,SVI350.4 (SV)(SVI)Fig.4 TemperatureeffectsonSVandSVISUFR,,5.5,SUFR、、、.5 SUFRFig.5 ThemicroscopeobservationofmicroorganismsinSUFRsystematdifferenttemperatures3 3.1 低温对SUFR系统耗氧有机物(以COD计)去除效果影响的分析SUFR(COD),COD.,,.,,(COD).1,SUFR,(COD)86%.[7],(EGSB)16~19℃,(COD)34%.12~15℃,514 25(COD)70%[8].[9]HUSB+EGSB,12℃,(COD)51%.CASS,(COD)85%[5].,(COD),SUFR.,.“”,、[6],(COD).3.2 低温对SUFR系统脱氮效果影响的分析3.2.1 温度对硝化的影响的分析 6.6,,12℃,..6,,SUFR78%,5mg·L-1.[2],15℃,,.[10]A2O(12~16℃),20~30mg·L-1,5mg·L-10~29%.,SUFR12℃,.12℃,.,SUFR.SUFR,..3.2.2 温度对反硝化的影响 7.7,.:,[3];,,;,(COD),[11].6 Fig.6 Temperatureeffectsonnitrificationrates7 Fig.7 Temperatureeffectsondenitrificationrates,8~9℃,SUFR,70%.[3],10℃.,SUFR..Arrheius:qD,T=qD,20K(T-20)(1):qD,TT℃;qD,2020℃;K.7,,:lnqD,T=0.14T-2.2642 (R2=0.9955)(2)(1)K=1.15.3.3 温度对除磷效果影响的分析SUFR,.5.2~7.5mg·L-1,8℃92%,0.5mg·L-1.[12],5154:SUFR(A2O)54%.Phoredox70%~80%.AO(10~17℃)[2],3.0~3.2mg·L-1,0.4~0.8mg·L-1.,SUFR.[2]:...3,SUFR,,.,,8.8 SUFRFig.8 TemperatureeffectsonP-releaseandP-uptake 8,10~20℃,,,..10℃,.,,.,8℃12℃.9℃,70%.,.[13,14],15~20℃,20%,.10℃,,..Christine[14],,.,SUFR(DenitrifyingPhosphorusRemovingBacteria,DPB).SUFR[6],.3.4 低温对污泥特征影响的分析3.4.1 低温对污泥稳定性和颗粒性影响的分析 5,,.,,.,SVSVI,,.,9.9 SUFRFig.9 ThemicroscopeobservationofthesludgeinSUFRsystematdif-ferenttemperatures 9,SUFR,.,,.,,.[15],19982,、10.SBR[16]、CASS[5],.SUFR,,14d.,.:1),,,.2).SUFR516 25,,.3)SUFR.3.4.2 低温对污泥的微生物生态影响的分析 ,..,,,(5)..,,.、[17].SUFR,,.、、、、、,.SUFR..4 1)SUFR.12℃,.12℃,.,(COD)、TNTP86%、70%92%.SUFR.2)SUFR.,、SUFR,,.,SUFR、.3)SUFR(8~20℃).SUFR.(References):[1] PengYZ,ZhangZJ.Newresearchfortemperatureandsludgeageef-fectsontheactivatedsludgeprocess[J].ChinaEnvironmentScience,1990,10(1):3—9(inChinese)[2] ZhengXC,LiYX.Technologyofnitrogenandphosphorsremovalfromwastewater[M].Beijing:ChinaArchitecture&BuildingPress,1998:55—56;43—44;206—210;221—250(inChinese)[3] XuYT.TheinfluenceofpHvaluesandtemperatureondenitrification[J].ChinaEnvironmentScience,1994,14(4):309—313(inChi-nese)[4] BaetensD,VanrolleghenPA,VanLoosdrechtMCM,etal.Tem-peratureeffectsinbio-premoval[J].WatSciTech,1999,39(1):215—225[5] SangYM,YiW.ApplicationofCASSprocesstohypothermaldomes-ticsewagetreatment[J].EnvironmentEngineering,2002,20(2):16—18(inChinese)[6] LuoGY,DouJF,JiFY.Studyonthecharacteristicofspiralup-flowreactorsystemanditsperformanceonbiologicalnitrogenandphos-pho
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