UASB接触氧化工艺处理玉米淀粉废水研究李艳春

25120092JOURNALOFMETEOROLOGYANDENVIRONMENTVol.25No.1February2009:2008-08-11;:2008-12-01。:,,1982,,,E-mail:[e-mail]。UASB/李艳春(,110031)　　　:针对锦州某玉米深加工企业采用UASB/生物接触氧化方法处理玉米淀粉生产废水,研究主要对UASB反应器启动、运行以及颗粒污泥的结构特性进行实践与探讨。结果表明:UASB反应器经过启动阶段、负荷提高阶段以及稳定运行阶段后,可实现进水量为4513m3/d,进水CODCr平均浓度为7867mg/L,反应器CODCr负荷为7.3kg·m-3·d-1,出水CODCr浓度为480mg/L,去除率为94%,运行稳定。:UASB反应器;接触氧化工艺;玉米淀粉废水处理　　:X703　　:A　　:1673-503X(2009)01-0068-041　(UASB)、、,[1-2]。UASB、、,,3R(Reduce,Recycle,Reuse)。,—[3],UASB。,,,[4]。“”,。,、、。、,、、,60t。,。2　2.1　、、、。4500m3/d,1。　　1,、1　mg/LCODCrBOD5SSTNTPpH80004500250018040506.5—7.0　　:pH。,。2.2　2.2.1　,UASB。2.2.2　2.2.2.1　UASBUASB。UASB,,CODCr7.3kg·m-3·d-1。,CODCr90%。　　UASB,。,。UASB,。25g/L。,,。,。2.2.2.2　　1:UASB/,,1　,。,HRT=10h。2.2.3　CODCr,“(DB21/1627—2008)”。CODCr2。2　CODCrCODCr/(mg·L-1)7867480208146--93.9056.6729.8198.143　UASB3.1　。,SS=15.2g/L,VSS=10.6g/L。3.2　3,、。,;,;,,。3.2.1　、、。:CODCr0.5kg·m-3·d-1,CODCr4000—5000mg/L。,3h。,,。2。2　　　,1;7d,CODCr59.99%,1850mg/L。,CODCr。,,,15d,CODCr983mg/L,77.49%。,,CODCr0.5kg·m-3·d-1,80%(20),3—5d,。30d,,CODCr2.5kg·m-3·d-1。CODCr721mg/L。,,。3.2.2　,。:,,90%,3—5d,CODCr0.4kg·m-3·d-1。3。,30d,,4000mg/L8000mg/L,,。,,,88%,60d,CODCr8021mg/L,CODCr7.43kg·m-3·d-1,92.4%。3.2.3　6925　,30d。3　4513m3/d,7867mg/L。4。　　:,CODCr7.3kg·m-3·d-1,CODCr480mg/L,94.0%,。4　4.1　[4]。,,。4　　　,UASB,,2—4mm,,。25g/L,18—30m/h。4.2　,。、[6-8]。UASB48%。3UASB4()。3　/(g·kg-1)CaCO3MgKNaFePS122.612.67.6913.26.944.810.120.048224.411.86.8014.46.543.512.623.542323.810.97.1012.77.042.913.921.135425.212.87.4013.88.341.612.822.0485　UASB,,、UASB。。(1),,,;UASB、;,。(2)UASB:CODCr0.5kg·m-3·d-1。30d,,CODCr2.5kg·m-3·d-1,721mg/L。(3)UASB:,30d,,,88%。60d,8021mg/L,CODCr7.3kg·m-3·d-1,92.4%。(4)UASB:4513m3/d,CODCr7867mg/L。CODCr70　1:UASB/7.3kg·m-3·d-1,CODCr480mg/L,94%,。(5)UASB,,2—4mm,,。25g/L,18—30m/h。(6)UASB35%—48%,、、。[1]　.[M].:,1991:12-15.[2]　.UASB[J].,2007,23(2):34-37.[3]　,.UASB--[J].,2002,20(2):8-12.[4]　,,,.[J].,2005,27(8):625-629.[5]　,,,.[J].,2002,21(3):139-142.[6]　,,,.UASB[J].,1990,10(5):343-346.[7]　.[J].,1990,12(1):12-15.[8]　,,,.[J].,2000,26(1):33-38.TreatmentofcornstarchwastewaterbasedonUASBandbio-contactoxidationprocessLIYan-chun(LiaoningNorthEnvironmentalProtectionLimitedCompany,Shenyang110031,China)Abstract:UASBreactor′sstart-up,operationandstructuralcharacteristicsofgranularsludgeweremainlystudiedbasedonthetreatmentofcornstarchwastewaterbyUSABandbio-contactoxidationprocessonmaizedeeppro-cessinginanenterpriseofJinzhou,Liaoningprovince.TheresultsshowthataftertheUSABreactorgoesthroughthreestages,i.e.start-upstage,loadincreasingstageandstableoperationstage,theaveragewaterinflowis4513m3·d-1,theaverageCODCrconcentrationoftheinflowis7867mg·L-1,CODCrloadofreactoris7.3kg·m-3·d-1,CODCrconcentrationofeffluentis480mg·L-1,theaverageremovalratereachesabout94%,andthereactoroperatescontinuouslyandstably.Keywords:UASBreactor;Bio-contactoxidationprocess;Treatmentofcornstarchwastewater71