二段曝气生物滤池处理生活污水的试验研究邱立平

4　(1),。CODCr83%～88%,BOD591%～96%,SS85%～92%,。,55%～65%。12～20mg/L,。(2)10000t/d,55%,35%。(3)、,,。1　Elliot,P.W.,D.KnightandJ.M.Anderson.Variablescontrollingde-nitrificationfromearthwormcastandsoilinpermanentpastures.Biol.Fertil.Soils,1991.11:24～29.2　WhhteS.Avermi-adventureinIndia.Wormdigest,1997.15:1.3　BoucheM.B.&J.-P.Qiu,Contributionsdeslombriciensausetudesenvironnementalesconcretes.Doc.Pedozool.Integrol,1998.(3)225～252.　,,195312,19772,,。、。2000-08-21邱立平　杜茂安　冯　琦(,150090)　对二段曝气生物滤池处理生活污水进行了试验研究,探讨了生物膜的形成及供气量、水力停留时间对处理效果的影响。结果表明:在上、下进气口分别按气水比3:1和1:1,HRT9.8h,进水CODCr浓度163.54～309.65mg/L条件下,CODCr去除率平均为88.63%,SS去除率平均为85.44%,TN去除率平均为38.69%,出水CODCr降至22.45～29.45mg/L,SS降至18～26mg/L。　二段曝气　生物滤池　生活污水　HRT　脱氮1　　[1],。,,[2、3]。,,,,、、。2　2.1　试验装置,1。2m,100mm,100cm,50cm,,2,,。,:100L/h,40～60L/h,10～15min。2.2　试验方法,pH6.8～7.4,CODCr163.54～309.65mg/L,SS135～218mg/L,TN48～81mg/L,TP8.7mg/L。,,22　　　20014192DOI:10.13205/j.hjgc.2001.02.007CODCr、SS、pH、TN、TP、DO。1　3　3.1　生物膜的形成及分析、。。7d,1.2L/h,3:1,7d,,、、、、,,,75μm,。。3:(1)　,,,,。(2)　、,。,。。(3)　,。14d。,,3.84g/L。3.2　运行结果分析3.2.1　CODCr1.2L/h,2.4L/h,3.6L/h,4.8L/h,3:1,1:17d,7d,7d,5d,CODCrCODCr2。2,1.2L/h,9.8h,CODCr88.13%,CODCr22.45mg/L,,CODCr。2　CODCrCODCr3.2.2　SS33.2.1,SSSS。3,SS。SS18mg/L,88.69%。SS。,,SS。,SS,,SS。3　SSSS3.2.3　TN、TP,4。4,3.2.1,TN48～81mg/L,TN27.97%,45.31%。,,,23　　　20014192。,,。4　TNTN3.3　供气量对处理效果的影响,,。1:1。,,。,3:1,1:1,DO2mg/L,DO3.65mg/L,。3.4　水力停留时间对处理效果的影响。9.8h、4.9h、3.2h、2.4h7d,7d,7d,5d,CODCr、SS、TN5。5,,CODCr、SS、TN。4.9h,CODCr、SS、TN78.44%、73.78%、26.83%。,CODCr163.54～309.65mg/L,SS135～218mg/L,HRT,。5　HRTCODCr、SSTN4　(1),、,,。(2)CODCr163.54～309.65mg/L,SS135～218mg/L,3:11:1,HRT9.8h,CODCr88.63%,90.43%,CODCr22.45～29.45mg/L;SS85.44%,SS18～26mg/L;,TN38.69%。(3)CODCr、HRT。CODCr;3:1,1:1,;HRT。(4),,,,,,,,。(5),,,,,,,、、。1　,,..:,1986.2　.().:,1996.3　MarkW.Fitch,JefferyB.Murphy,StephenS.Sowell.BiologicalFixed-FilmSystems.WaterEnvironmentResearch,1998,71(5):638～656.　,,196810,,。20007,。,。2000-11-0724　　　20014192Abstract　Adynamicexperimentoftreatmentofwastewaterfromregeneratedpapermakingbythe70L/hchemical-coagulationequipmentisconducted.Itwasshownthatthetreatmentresultsandconditionsofthedynamictestareinagreementwiththoseofthestaticexperiments.WhenthedosageofKMnO4is10～13mg/L,oxidativetimeis25mins,thedosageofcoagulantAis160～250mg/L.thedosageofcoagulantBis5.7～6.2mg/L,CODCroftheeffluentisdecreasedto60～70mg/L,andtheremovalrateofCODCrcanreach90.5%～93.6%,whichmeetsthenationalfirst-stageemissionstandard(GB3544-92).Thesedimentcurveofwastewaterinthesettlerwasobtained.Keywords　wastewaterfromregeneratedpapermaking,wastewatertreatment,dynamictestandchemical-co-agulationprocessAPILOTSTUDYOFTREATINGURBANSEWAGEBYBIOFILTERYangJianetal(20………………)Abstract　Adegradationtreatmentofthepollutantsintheurbansewageisdonebyanartificialbiosystemofmicroanimals,suchasmicrobesandearthworms.Thissystemconsistsofawateringzone,anearthwormfilterbedandadewateringzone,whichputstogetherthefunctionsofthephysicalfiltrationandadsorption,aerobicandanaerobicbiotreatmentsetc.Theearthworminthefilterbedcandecomposeandusetheorganicsofthesewageandsludge;italsohasanimportantroleofpromotingnitrification-denitrificationofthenitrogenousorganics.ThehigherremovalratesofCODCr,BOD5,SSandammonia-nitrogenintheurbansewagecanbeobtainedbythebiofilter.Ital-sofeaturessimpleflowpath,convenientmanagement,resistancetoshockload,lowcostandnosurplussludgeetc.Keywords　earthwormbiofilter,microbe,synergismandurbansewageEXPERIMENTALSTUDYONDOMESTICWASTEWATERTREATMENBYUSINGTWO-STAGEAERATIONBIO-FILTERQiuLipingetal(22…………………………………………………………………)Abstract　Anexperimentalstudyondomesticwastewatertreatmentbyusingatwo-stageaerationbio-filterwaspresentedinthispaper.Theformationofbio-filmandeffectsofhydraulicretentiontimeandvolumetricgasrateonefficiencyofwastewatertreatmentwerestudied.TheresultsshowedthattheaverageCODCr,SS,TNre-movalrateandeffluentCODCr,SSconcentrationwere88.63%,85.44%,38.69%,22.45～29.45mg/Land18～26mg/Lrespectivelyundertheconditionofair/wastewaterratioofupperandloweraerationdevicewere3∶1and1∶1respectively,HRT9.8handtheinfluentCODCrconcentration163.54～309.65mg/L.Keywords　two-stageaeration,bio-filter,domesticwastewater,HRTanddenitrificationRESEARCHONPROBLEMSOFWETDESULPHURATIONAnEnkeetal(25…………………………)Abstract　TheconceptoftheminimumpHorminimumconcentrationofawetdesulphurationsolutionisputforwardforthefirsttimethroughtheanalysisofthedesulphurationsystemandcombiningtheproblemsofwetdesulphuration.Itispointedoutthattheminimumliquid/gasratioexistswhenpHofthesolutionisconstant,whichhasimportantguidingmeaningtotheoperationanddesignofthewetdesulphurationsystem.Keywords　wetdesulphuration,minimumpHvalueandminimumliquid/gasratioSTUDYOFCONTROLLINGOFHYDROGENSULFIDEFROMALUMINAMANUFACTORYBYCOM-BUSTIONNingPingetal(27………………………………………………………………………………………)Abstract　Theapplicationofmethodofcombustionindealingwithwastegasincludinghydrogensulfideina-luminamanufactoryhasbeenstudied.CombustionefficiencyofH2Swasaround100%.Itisnotnecessarytoadd3ENVIRONMENTALENGINEERINGVol.19,No.2,April,2001