UASBAOUFNF工艺处理生活垃圾焚烧厂渗滤液宋灿辉

UASB+A/O+UF+NF工艺处理生活垃圾焚烧厂渗滤液＊宋灿辉1　胡智泉2　肖　波2(1.,310005;2.,430074):采用“UASB+A/O+UF+NF”工艺处理生活垃圾焚烧厂渗滤液,工程规模为150m3/d,工程总投资500万元,运行成本为25元/t;污泥处理工艺过程为:(剩余污泥+厌氧污泥)浓缩※脱水※焚烧。工程设计进水水质指标为ρ(COD)=50000mg/L,ρ(BOD5)=25000mg/L,ρ(NH3-N)=600mg/L,ρ(TP)=15mg/L,ρ(SS)=9000mg/L,出水主要水质指标为ρ(COD)≤50mg/L,ρ(BOD5)≤15mg/L,ρ(NH3-N)≤10mg/L,ρ(TP)≤0.27mg/L,ρ(SS)≤4mg/L,补充到电厂循环冷却水中回用,不但实现了垃圾焚烧污水零排放,还有着较好的经济和环境效益。:渗滤液;UASB;A/O膜生物反应器;NFTREATMENTOFLEACHATEFROMMSWINCINERATIONPLANTWITHUASB+A/O+UF+NFPROCESSSongCanhui1　HuZhiquan2　XiaoBo2(1.HangzhouJinjiangGroup,Hangzhou310005,China;2.InstituteofEnvironmentalScienceandEngineering,HuazhongUniversityofScienceandTechnology,Wuhan430074,China)Abstract:UASB+A/O+UF+NFprocessisusedtotreattheleachatefromaMSWincinerationplant,whosedesignedload-ingis150m3/d,withaninvestment5millionYuan(RMB),andtheoperationcostis25Yuanperton.Sludgedisposalprocessis:concentration※dehydration※incineration.Thedesignedinfluentqualityis:ρ(COD)=50000mg/L,ρ(BOD5)=25000mg/L,ρ(NH3-N)=600mg/L,ρ(TP)=15mg/L,ρ(SS)=9000mg/L.Thesystemeffluentqualitywas:ρ(COD)≤50mg/L,ρ(BOD5)≤15mg/L,ρ(NH3-N)≤10mg/L,ρ(TP)≤0.27mg/L,ρ(SS)≤4mg/L.Theef-fluentisreusedasrecirculatingcoolingwaterofathermalpowerplant,itnotonlyrealizesthewastewaterzerodischargeatMSWincinerationplant,butalsohastheconsiderableeconomicandenvironmentalbenefits.Keywords:leachate;UASB;A/Omembranebioreactor;NF　　　　　　　　＊(20876066)。1　,,,,、、。,,。2　1000t/d,,,48h,12%,20%[1]。,140t/d,12t/d,150t/d,500,1。3　1。,,,40　　　20102281DOI:10.13205/j.hjgc.2010.01.008　　　1　pH4～56.5～8.5ρ(SS)/(mg·L-1)9000≤30/800≤30ρ(COD)/(mg·L-1)50000≤60ρ(BOD5)/(mg·L-1)25000≤30ρ(NH3-N)/(mg·L-1)600≤10ρ(TP)/(mg·L-1)15UASB,UASB30℃,60%COD,。UASBA/O,,95%COD,,GB/T19923-2005《-》。1　、UASB、A/O。,,75%,。。2。4　4.1　调节池,,,[2]。,。20m×15m×4.5m,,,,5～6m3/(h·m2),。4.2　UASB、B/C2　mg/Lρ(COD)ρ(BOD5)ρ(NH3-N)ρ(SS)15000025000600900030000150004809000/%≥40≥40≥20≥023000015000480900021000120004323600/%≥30≥20≥10≥603UASB210001200043272084006000432432/%≥60≥50≥0≥405A/O840042004324326722102143/%≥92≥95≥95≥906NF67221021435316104/%≥92≥92≥50≥907/%99.8999.9398.399.95—0.45,。UASB,UASB、、、、,UASB10.0m×10.0m×7.5m,;。15m3。VFA。pH。pHNaOHHCl。,,,。、,pH,UASB,COD5kg/(m3·d),1.75m3/(m3·d),5.5m,HRT4d。UASB,22g/L。UASB、,3。4.3　A/O膜生物反应器A/O[3],41　　　20102281,,、,、、、,、。A:5.0m×6.0m×5.0m;。B20.0m×6.0m×5.0m;,10～15g/L,COD0.3kg/(kg·d),0.05kg/(kg·d)。,NORIT,533m2、5.2mm。、、、,,,,,,,。,,0.03μm、COD,A/O,,。,,,。,,。,1%。,,。,2。2　A/O　4.4　NF系统A/O,,ρ(COD)500mg/L3000,,,。()。,GEDK3,3,、,,。,3。3。3　　3　/MPa/%/d/aCOD/%/%1.0～1.585%45～75380～9040～605　1000t/d150t/d,4/t,25/t,50～200/t,GB/T19923-2005。60/t、1.5/t,59.1/a。,1t90kg,18900kJ/kg800/t,112/t,,600。ρ(COD)100mg/L,COD2694.6t/a。,,,,。(46)42　　　2010228189.45%,。2.2　膜组件造价,20～60mL,500mL,,,,93.2/m2(150～450/m2)。3　,,、,。,,。,,,,,。,1∶4+1∶501∶2+1∶505.45L/(m2·h)6.50L/(m2·h)。,,35℃,。。[1]　,,,.[J].,2005(6):37-41.[2]　.[J].,2007(3):15.[3]　,,,.[J].,2007,24(5):37-39.[4]　.[J].,2007,24(12):70-71.[5]　KuberkarVT,DavisRH.Modelingoffoulingreductionbysec-ondarymembranes[J].JMembraneSci,2000,168(1-2):243-258.[6]　,.[J].,2006,26(4):66-69.[7]　KisoY,JungYJ,IchinariT,etal.Wastewatertreatmentper-formanceofafiltrationbio-reactorequippedwithameshasafiltermaterial[J].WaterRes,2000,34(17):4143-4150.[8]　AlaviMaghaddamMR,SatohH,MinoT.Effectofimportantop-erationalparametersonperformanceofcoarseporefiltrationactiva-tedsludgeprocess[J].WaterSciTechnol,2002,46(9):229-36.[9]　SeoGT,MoonBH,LeeTS,etal.Non-wovenfabricfiltersepa-rationactivatedsludgereactorfordomesticwastewaterreclamation[J].WaterSciTechnol,2002,47(1):133-138.[10]　ChuLB,LiSP.Filtrationcapabilityandoperationalcharacteris-ticsofdynamicmembranebioreactorformunicipalwastewatertreat-ment[J].SepPurifTechnol,2006,51(2):173-179.[11]　,,,.-[J].,2008,30(5):47-50.[12]　,.[J].,2004,25(3):78-83.　　100085　18A408E-mail　[e-mail]　(010)628491092009-03-02(42)[1]　,.[J].,2002,3(5):9-11.[2]　.[J].,1996,17(2):41-44.[3]　,.A/O[J].,2008,40(3):24-27.　　430074　E-mail　[e-mail]2009-04-2946　　　20102281