UASBSBR化学混凝工艺处理养猪废水颜智勇

UASB/SBR/颜智勇,　吴根义,　刘宇赜,　易　浩,　杨仁斌(湖南农业大学资源环境学院,湖南长沙410128)　　　:　针对养殖场废水COD高、氨氮高、SS高的特点,采用UASB/SBR/化学混凝作为主体处理工艺。UASB反应器采用消化污泥接种,SBR反应器采用好氧活性污泥接种,经过2个月的启动运行,对COD、BOD5、NH3-N、SS、TP的去除率分别达到了91.7%、91.6%、89.4%、98.1%和31.1%,出水各项指标都达到了《畜禽养殖业污染物排放标准》(GB18596—2001)。　　:　养殖废水;　UASB;　SBR;　化学混凝;　调试;　启动:X703.1　　:C　　:1000-4602(2007)14-0066-03TreatmentofPiggeryWastewaterbyUASB/SBR/ChemicalCoagulationProcessYANZhi-yong,　WUGen-yi,　LIUYu-ze,　YIHao,　YANGRen-bin(CollegeofResourcesandEnvironment,HunanAgriculturalUniversity,Changsha410128,China)　　Abstract:　BasedonthecharacteristicsofhighCOD,highammoniaandhighsuspendedsolidsinpiggerywastewater,atreatmentprocessofUASB/SBR/chemicalcoagulationwasused.ThedigestedsludgewasusedforseedinginUASBreactorandtheaerobicactivatedsludgewasusedforseedinginSBRreactor.Afterstart-upfortwomonths,theremovalratesofCOD,BOD5,NH3-N,SSandTPreach91.7%,91.6%,89.4%,98.1%and31.1%respectively.Alltheeffluentindexesmeetthere-quirementofDischargeStandardofPollutantsforLivestockandPoultryBreeding(GB18596-2001).　　Keywords:　breedingwastewater;　UASB;　SBR;　chemicalcoagulation;　commissioning;　start-up1　概况1,150m3/d,,。2006,,UASB/SBR/,《》(GB18596—2001)。1。1　Tab.1　WastewaterqualityanddischargestandardCOD/(mgL-1)BOD5/(mgL-1)SS/(mgL-1)NH3-N/(mgL-1)TP/(mgL-1)pH2000～3420350～700300～500150～11009～116～8≤400≤150≤200≤80≤86～92　废水处理工艺流程、、、、[1、2]。1。6623　1420077　　　　　　　　　　　　CHINAWATERWASTEWATER　　　　　　　　　　　　　Vo.l23No.14Ju.l20071　Fig.1　Flowchartofwastewatertreatmentprocess　　,、,。,UASB,,。UASBSBR,。SBRTP,SS,,,。3　主要构筑物及设备①　。,30.0m×30.0m×2.5m,1800m3,,4,HRT12d,SS75%。②　。,2.0m×2.0m×4.0m,12m3,2(Q=25m3/h,H=200kPa,11)。③　UASB。UASB3,17.2m×6.0m×8.0m,608m3,,4,300mm;,0.9m,2。,。UASB1.5kgCOD/(m3d);HRT4d,COD80%。④　SBR。SBR(Ø215mm),2(11),5.9m3/min。,,,。11.6m×6.0m×5.0m,;40h,250m3,SBR250m3/h。⑤　。SBR。6.0m×6.0m×3.5m,,2,,PACPAM,;,,。4　工程调试UASBSBR,UASBSBR。4.1　UASB,60t,80%,VSS/TSS0.6,11.8gVSS/L。,,;UASB。,30m3/d,,。COD75%,。:COD75%,30%。2,COD80%。SBR,UASB,UASB,,,UASB。4.2　SBR,,,20t,85%,VSS/TSS0.62,7.44gVSS/L。SBR,SBR1/3,UASB。SBR,SBR,,,。UASB,UASB,SBR。267:UASB/SBR/23　14,,。,DO。,DO0.1mg/L;DO3mg/L;,DO0.5mg/L。SBR,,SBR,,、DO0.5mg/L,,。,DOSBR。,DO,DO。24h,6h、12h、3h、2h、1h。5　运行情况20067,2,,。2。2　Tab.2　OperationresultsfordifferentunitsUASBSBR/(mgL-1)/(mgL-1)/%/(mgL-1)/%/(mgL-1)/%/%COD211742180.121648.717220.491.7BOD548111875.45652.54028.691.6NH3-N638.3443.630.571.08467.5589.4SS391.710373.789.413.27.591.698.1TP10.1812.38.134.17.0213.331.1　:　UASBpH8.0,7.56;SBRpH7.20,pH7.18。6　经济效益分析32.3kW,15.3kW,180(kWh)/d,0.6/(kWh),108/d;2,800/,53/d;PACPAM,30/d。、,191/d,1.27。7　结语①　UASB/SBR/,《》(GB18596—2001),1.27。②　2:COD75%,30%;SBRDO3mg/L,DO0.5mg/L。:[1]　,,,.[J].,2006,24(4):29-33.[2]　,,.—A2/O[J].,2005,31(3):55-57.:[phone]E-mail:[e-mail]:2007-01-296823　14