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ABR/CASS易兆青1, 张振家1, 吕有良2(1.上海交通大学环境科学与工程学院,上海200240;2.西南交通大学环境科学与工程学院,四川成都610031) : 介绍了采用折板厌氧反应器(ABR)/循环活性污泥系统(CASS)处理屠宰废水的工程实例。实际运行结果表明:工艺可行、管理方便,投资、运行费用低,处理效果稳定,出水水质可达到《肉类加工工业水污染排放标准》(GB13457—1992)一级标准。 : 屠宰废水; 折板厌氧反应器; 循环活性污泥法; 脱氮:X703.1 :C :1000-4602(2007)06-0059-03ApplicationofABRandCASSTechnologyinTreatmentofSlaughterhouseWastewaterYIZhao-qing1, ZHANGZhen-jia1, LVYou-liang2(1.SchoolofEnvironmentalScienceandEngineering,ShanghaiJiaotongUniversity,Shanghai200240,China;2.SchoolofEnvironmentalScienceandEngineering,SouthwestJiaotongUniversity,Chengdu610031,China) Abstract: TheprojectcaseofusingthecombinedtechnologyofABRandCASSforslaughterhousewastewatertreatmentwasintroduced.Theoperationalresultsprovethatthetechnologyisbothfeasibleandeasyinmanagement,withlowinvestment,lowoperationalcostandstabletreatmentefficiency.ThefinaleffluentmeetsⅠ-classcriteriaspecifiedinDischargeStandardofWaterPollutantsforMeatPackingIndustry(GB13457-1992). Keywords: slaughterhousewastewater; ABR; CASS; nitrogenremoval1 废水水量与水质、,4000/d,4000m3/d,1。1 Tab.1 WastewaterqualityanddischargestandardCOD/(mgL-1)BOD5/(mgL-1)SS/(mgL-1)/(mgL-1)pH1500~1800550~800800~120030~506.7≤80≤30≤60≤156~8.5 1,B/C≈0.4,,、。2 工艺流程、、、、,COD,。,CASS,,。,、,。1。59第23卷 第6期2007年3月 中国给水排水CHINAWATERWASTEWATER Vo.l23No.6Mar.20071 Fig.1 Flowchartofwastewatertreatmentprocess 、,;,、;ABR,,———,;ABRCASS,CASS,、BOD5,;。。3 主要构筑物和设备3.1 2、3。2 Tab.2 Mainconstructions、/,1.2m×5.2m×4.0m1,6.5m×6.5m×5.3m120min,16m×4.5m×4.5m1HRT=1h,q=3.0m3/(m2h),22m×16m×5.5m1HRT=8hABR,20m×9m×5.5m2CASS,16.8m×18.0m×5.5m2,12m×5m×3.5m1HRT=30min,4mg/L,19m×16m×1.5m1,,S=120m213 Tab.3 Mainequipments、GSHZ-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=1kW13.2 ABRABR4kgCOD/(m3d),HRT10.77h,1800m3,2,。5,,1∶3,2.5~3m/h。,28,80mm。。ABR2。2 ABRFig.2 PlanandsectionofABRtank3.3 CASSCASS3000m3,260第23卷 第6期 中国给水排水 =4000mg/L,0.08kgBOD5/(kgMLSSd),、、,1∶5∶30,4m×2m,4m×10m,21m×12m。4,6h,4h、1h、1h,5m,1/3,1.68m,25%,,、。,。,,,,,,,,,。,1.8~2.5kg/(kWh),、,,。200%~300%,10,DO2mg/L。4 运行效果及经济效益分析20049,,,4。4 Tab.4 RemovalefficiencyofpollutantsinmainunitsCODBOD5SSABRCASSABRCASSABRCASSABRCASS/(mgL-1)17501400410760650250383842850320100/(mgL-1)1400410406502502038421032010040/%97.797.473.795.3 435,240,140,55。、,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,《》(GB13457—1992),COD2500t,。5 结论及建议① ABR/CASS、、,。② ABR,ABR3,ABR,,;3m/h,,,,。,,,。③ ,,、,CASS,BOD5、。:[1] .()[M].:,2000.[2] ,.[M].:,2000.[3] ,.[M].:,1999.:(021)34200323E-mail:yizhaoqing@sohu.com:2006-11-0161易兆青,等:ABR/CASS法处理屠宰废水第23卷 第6期
本文标题:ABRCASS法处理屠宰废水易兆青
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