DASB反应器处理生活污水的试验研究卢勇

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/℃10~30ρ(COD)/(mg·L-1)237.12~457.24/(mg·L-1)298~342,,,CO2,。,,[1],1000,89.7%,7.3%,,,、[2]。,、,。[3],,(DASB),DASB。DASB,,,,。DASB,DASB。11.1,1。11.21,DASB,:90mm,1150mm,3.6L。。25mm,0.92g/cm3,1400m2/m3。2。DASB,,(,310022):DASB,、,,。,DASB,6h,CODSS81.48%86.07%。:;;:X7:B:1674-4829(2009)05-0032-03:2009-07-13:(1982-),,,,.StudyonDomesticSewageTreatmentbyDown-flowAnaerobicSuspendingMediaBedLUYong,XUZhi-guo,ZHAOJieAbstract:Asafutureanaerobicreactor,thedown-flowanaerobicsuspendingmediabed(DASB)hastheadvantagesofsimplestructure,convenientoperationandgoodtreatmentefficiencyetc,whichhasbroadprospectindomesticsewagetreatment.Thestart-upandrunofDASBreactorundernormaltemperatureinthetreatmentofdomesticsewageisconducted.TheresultsshowedthattheaverageremovalefficiencyofCODandSSreached81.48%and86.07%whenthebesthydraulicresidencetimewas6hours.Keywords:Anaerobicreactor;Down-flowanaerobicsuspendingmediabed;Domesticsewage225200910EnvironmentalScienceandTechnologyVol.22No.5Oct.2009ρ(SS)/(mg·L-1)131~376pH6.5~7.02252CODDASB(HRT=3h)(HRT=6h)(HRT=8h)HRT=3hHRT=6hHRT=8h2DASB,,UASB,。,,,,,,,。1.3[4]3。31.4,。,,m(VSS):m(SS)0.4,ρ(MLSS)26.5g/L。,。24h,0.3131kg/(m3·d)。30℃,COD,30d,COD,,,1.6kg/(m3·d)。,ρ(COD)230~460mg/L,25~30℃。COD2。1.5COD,SS1.5.1HRTCODHRT(HRT)2,3,4,6,8h,3、4。3,4,HRT6h,HRT:HRT=2h,COD46.79%~77.48%,;HRT=3h,CODSS53.44%~78.59%,76.51%~91.75%;HRT=4h,COD62.3%~86%;HRT=6h,CODSS,65%~88.79%,75.84%~93.61%;HRT>6h,:HRT=8h,COD66.53%~84.08%,SSφ/mm25/℃80~100/℃-15≥95%/(m2·m-3)1400/(g.cm-3)0.92VFA()pHCODSSVSSpH1(DASB)3HRTCOD4HRTSS/%ρ(COD)/(mg·L-1)(HRT=2h)(HRT=3h)(HRT=4h)(HRT=6h)(HRT=8h)ρ(SS)/(mg·L-1)500400300200100090807060504030200250300350400450500ρ(COD)/(mg·L-1)/%CODCOD5.195.225.255.285.316.036.056.076.096.116.136.156.176.196.21/(·)10095908580757065605550/%10095908580757010015020025030035040033200910,74.37%~92.73%。,HRT,CODCOD,COD,COD。,SS。,,HRT6h。,。,,,,。,,。1.5.2HRT=6hCODSS6h19d,5、6,:COD(237~457mg/L),COD,100mg/L,,COD81.48%。SS,ρ(SS),50mg/L,86.07%,SS。,,、,ρ(SS)。1.6DASBDASB,AF,UASB,AH,;、,。,SS,SRT,HRT,。,SS,,,。COD,SS,,,,SS,。--,HRTSRT,,。COD、。2(1),DASB,,,。(2)DASB,HRT。HRT6h。(3)DASBCODSS,HRT=6h,CODSS81.48%86.07%。[][1]GHOSHS.Anaerobictrends[J].WaterQualityIntern,1997(7/8):31-33.[2],.[J].,2002,15(2):13-15.[3],,,.HRT[J].,2004,22(3):11-14.[4].[M].4.:,2002.()5HRT=6hCOD6HRT=6hSSρ(COD)/(mg·L-1)500450400350300250200150100500151015201009080706050/%t/dCODCODρ(SS)/(mg·L-1)400350300250200150100500151015201009080706050/%t/dSSSS34

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