UASBAF生物接触氧化工艺处理皂素酒精综合废水王理

4　5环境工程学报Vol.4,No.520105ChineseJournalofEnvironmentalEngineeringMay.2010UASB+AF--王　理1　鲍建国1＊　洪　岩2　王继坤2(1.(),430074;2.,442300)　　-UASB+AF--,,:COD10000～12800mg/L,COD200mg/L;、UASB+AFCOD23%、75%93.5%,COD98.4%,30～50;、。　-　UASB+AF　　X703.1　　　A　　　1673-9108(2010)05-0967-04Treatmentofsaponin-alcoholsynthesizedwastewaterbyUASB+AF-biologicalcontactoxidationWangLi1　BaoJianguo1　HongYan2　WangJikun2(1.KeyLaboratoryofBiogeologyandEnvironmentalGeologyofMinistryofEducation,ChinaUniversityofGeosciences(Wuhan),Wuhan430074,China;2.ChinaSunnyDiosgeninCo.Ltd.Shiyan442300,China)Abstract　Ahydrolyticacidification-UASB+AF-biologicalcontactoxidationprocesswasappliedtotreatthesaponin-alcoholsynthesizedwastewater,ofwhichthestartingupandrunningwereresearched.Theresultsshowthat,whentheconcentrationofCODoftherawwastewateris10000～12800mg/L,theconcentrationofCODofthefinaleffluentisreducedtoamountbelow200mg/L;theremovalratesofCODinhydrolyticacidifi-cationstage,UASB+AFstageandbiologicalcontactoxidationstageare23%,75%and93.5%respectively,andthetotalremovalrateofCODis98.4%.Theeffluentchromaisbetween30to50times.Besides,thisprocesscanberunstably,capableforresistingimpactloadandsoon.Keywords　saponin-alcoholsynthesizedwastewater;UASB+AF;biologicalcontactoxidation:“”(2006BAB04A14-2);(2006AA305A05):2009-10-16;:2009-11-15:(1984～),,,。E-mail:[e-mail]＊,E-mail:[e-mail]　　“--”(saccharifi-cation-membraneretrieval-hydrolysis,SMRH)SMRH,,(“SMRH”),[1]。SMRH,“SMRH”“”。,,,,SO2-4,,、,。,。SMRH,---。(upflowanaerobicsludgebed+anaerobicfilter,UASB+AF)4,(UASB)(AF),。,,。1　1.1　240m3/d。-COD15000～25000mg/L,,m(BOD5)/m(COD)0.25～0.30,pH1.5～3.5,SO2-46500～8000mg/L,600～1000,,N、P。1.2　,,-UASB+AF-,1。1　Fig.1　Processflowdiagramoftreatmentsofsaponin-alcoholsynthesizedwastewater,,pH5.5～6.5,,;35～38℃,;,,,;pHpH7.0～8.0,UASB+AF;,。,COD、BOD,。2　2.1　3,(3m×9m×5m,121.5m3;3m×4.5m×5m,60.75m3),303.75m3,30h。,,;,,,pH。,,。2.2　,,1.2m,3m,3.2m,6m3,0.6h。,、、、。,COD,,。2.3　UASB+AFUASB+AF,,7m×9m×11.7m,674.1m3,67.4h。UASB+AF、,、。UASB+AF,,,。,,,,,。2.4　5,(43m×9m×5m,121.5m3,13m×4.5m×5m,60.75m3),546.75m3,54.6h,,。UASB+AF5。9685　:UASB+AF--、,。3　3.1　(25t,75%～80%),。,COD6000～7000mg/L,、;25～35℃;pH5.5～6.5[2]。,,50m3/d,,。3,,;,COD,。45d,1.85kgCOD/(m3·d)4.45kgCOD/(m3·d),COD,10d10.8%18.4%,,22.7%。COD8.87kgCOD/(m3·d),COD,,VFA。60d,BOD5/COD0.310.44,;VFA22.6mmol/L43.4mmol/L;8.87kgCOD/(m3·d);COD23%,,。2。2　CODFig.2　CODconcentrationsofwastewatersbeforeandaftertreatmentandremovalrateinstarting-upofhydrolyticacidificationreactor3.2　UASB+AFUASB+AF,80t,80%～90%,VSS/SS=0.53。COD1500mg/L,pH=7.0～8.0,(,3～10℃)。38℃(±2℃)[3],50%～60%,VFA8mmol/L、pH6.8～7.2[4]。UASB+AF。4,120d。1,10d,50m3/d,,0.3～0.4m/h[5]。,,。10d,,,,,-。2,30d,,4d(),25%,pH,pH6.8～7.2。30d,0.7kgCOD/(m3·d),COD70%。,,;,。3,50d,,0.35m/h,COD,60d,1.5kgCOD/(m3·d),COD75%,pH7.0～7.2;,,,1mm,,,15%;,。4,30d,,,30d,COD9600mg/L,HRT70h,COD3.42kgCOD/(m3·d),。COD75%,VFA3.5～6.0mmol/L,700～1000mg/L,,1.5mm,MLSS80～100g/L,MLSS8～15g/L,35～38℃,pH6.8～7.2。UASB+AF3。N、P,N、P,,Fe2+、Co2+Ni2+[4]。96943　UASB+AFCODFig.3　CODconcentrationsofwastewatersbeforeandaftertreatmentandremovalrateinstarting-upofUASB+AFpH,[6]。3.3　UASB+AF,UASB+AF。,,1t,2h4h,DO2～4mg/L。15d,。,、,。,1.05kgCOD/(m3·d),COD、BOD5SS93.5%、96.4%93.1%,COD≤200mg/L、BOD≤30mg/L、SS≤50mg/L、≤20mg/L、≤0.2mg/L、pH≈7.0,30～50,GB20435-2006《》。4　,3,,1。1　Table1　ProcessingresultofeachunitincontinuousrunningCOD(mg/L)pH(℃)COD(%)11226.63.5258689.47.52722.6UASB+AF2059.47.1230.276.3156.67.0526.292.4　　1)15d,240m3/d5　200,,(、)6.8/m3(),UASB+AF560m3(1kgCOD0.40m3[7]),1m31.71kg,,1t/d,18/,。6　　(1)-UASB+AF--,GB20435-2006《》。(2)、,,,,,。(3),。。2h,DO3mg/L,,,。(4),,。(5),2～3,,。[1],,,..,2007,30(1):53～55[2],,,.-.,2008,26(3):75～77[3].UASB.:,2004,6:33[4]..:,1998[5],,.UASB.,2008,12(2):17～19[6],,.UASB-.,2007,30(10):68～70[7],,,.UASB.,2008,8(35):91～94970