ABRCASS法处理屠宰废水

ABR/CASS1,1,2(1.,200240;2.,610031):(ABR)/(CASS):,,,(GB134571992):;;;:X703.1:C:1000-4602(2007)06-0059-03ApplicationofABRandCASSTechnologyinTreatmentofSlaughterhouseWastewaterYIZhao2qing1,ZHANGZhen2jia1,LVYou2liang2(1.SchoolofEnvironmentalScienceandEngineering,ShanghaiJiaotongUniversity,Shanghai200240,China;2.SchoolofEnvironmentalScienceandEngineering,SouthwestJiaotongUniversity,Chengdu610031,China)Abstract:TheprojectcaseofusingthecombinedtechnologyofABRandCASSforslaughterhousewastewatertreatmentwasintroduced.Theoperationalresultsprovethatthetechnologyisbothfeasibleandeasyinmanagement,withlowinvestment,lowoperationalcostandstabletreatmentefficiency.Thefinaleffluentmeets2classcriteriaspecifiedinDischargeStandardofWaterPollutantsforMeatPackingIndustry(GB13457-1992).Keywords:slaughterhousewastewater;ABR;CASS;nitrogenremoval1,4000/d,4000m3/d,11Tab.1WastewaterqualityanddischargestandardCOD/(mgL-1)BOD5/(mgL-1)SS/(mgL-1)/(mgL-1)pH15001800550800800120030506.78030601568.51,B/C0.4,,2,COD,,CASS,,,,19523620073CHINAWATER&WASTEWATERVol.23No.6Mar.20071Fig.1Flowchartofwastewatertreatmentprocess,;,;ABR,,,;ABRCASS,CASS,BOD5,;3311232Tab.2Mainconstructions/,1.2m5.2m4.0m1,6.5m6.5m5.3m120min,16m4.5m4.5m1HRT=1h,q=3.0m3/(m2h),22m16m5.5m1HRT=8hABR,20m9m5.5m2CASS,16.8m18.0m5.5m2,12m5m3.5m1HRT=30min,4mg/L,19m16m1.5m1,,S=120m213Tab.3MainequipmentsGSHZ-9001N=1.1kW1150WQ200-10-15211N=15kW2100WQ110-10-5.5321N=5.5kWV=1.1m31KQL125/250,Q=100m3/h10N=11kW,H=200kPaJDYH-100160KQL80-100,Q=50m3/h2N=3kW,H=125kPaKQL80-100,Q=50m3/h2N=3kW,H=125kPaXPS-2504N=0.55kWHT908-10002N=1kW1312ABRABR4kgCOD/(m3d),HRT10.77h,1800m3,2,5,,13,2.53m/h,28,80mmABR22ABRFig.2PlanandsectionofABRtank313CASSCASS3000m3,206236=4000mg/L,0.08kgBOD5/(kgMLSSd),,1530,4m2m,4m10m,21m12m4,6h,4h1h1h,5m,1/3,1.68m,25%,,,,,,,,,,,,,1.82.5kg/(kWh),,,200%300%,10,DO2mg/L420049,,,44Tab.4RemovalefficiencyofpollutantsinmainunitsCODBOD5SSABRCASSABRCASSABRCASSABRCASS/(mgL-1)17501400410760650250383842850320100/(mgL-1)1400410406502502038421032010040/%97.797.473.795.3435,240,140,55,2560(kWh)/d,0.72/(kWh),1843.2/d;6,3,1000/,200/d;64,2107.2/d,4000m3/d,0.53/m3,COD40mg/L,BOD520mg/L,10mg/L,(GB134571992),COD2500t,5ABR/CASS,ABR,ABR3,ABR,,;3m/h,,,,,,,,,,CASS,BOD5:[1].()[M].:,2000.[2],.[M].:,2000.[3],.[M].:,1999.:[phone]E-mail:[e-mail]:2006-11-0116:ABR/CASS236