UBFAOMBR处理垃圾渗滤液中试刘海涛

UBF-AOMBR刘海涛1　李天增1　王成丽1,2　李京旭1　孙星凡1,2(1.,101102;2.,730070)　采用UBF(厌氧复合床反应器)-AOMBR(缺氧好氧膜生物反应器)工艺处理垃圾渗滤液,考察该工艺组合的可行性并作为该领域工程应用的参考。试验结果表明:当进水渗滤液COD浓度10000mgL左右,NH+4-N浓度2000mgL左右时,出水COD浓度为1000mgL,出水NH+4-N浓度为50～100mgL,COD总去除率90%,NH+4-N去除率95%左右。UBF最大COD容积负荷为6～7kg(m3·d)。pH、碱度、回流比是影响系统稳定运行的重要因素。当AOMBR系统MLSS10000mgL时,膜污染严重,采用酸、碱、NaClO溶液清洗后膜性能恢复为原来的75%左右。　UBF　AOMBR　膜污染0　,CODNH+4-N,[1]。UBF(,AFUASB)-AOMBR(),,,,,。1　1.1　试验装置1,2。1,2—;3—;4—;5—。1　UBFUBF,650mm,3000m,1m3。、,,,PVC。30%,60°,,NH+4-N。UBFUASB。,,。UBF,,。,,。1,4—;2—;3—;5—PLC;6—;7—;8—。2　AOMBRAOMBR,A∶O1∶3。A:1130mm×740mm×1400mm,1000L。O:O1:1130mm×740mm×1400mm,1000L;O2:2260mm×740mm×1400mm,2000L。。39　　　20086263DOI:10.13205/j.hjgc.2008.03.016(PVDF),0.22μm,1m2,8L(h·m2),3,20cm。,8min,3min。1.2　渗滤液水质,1。1。1　COD(mg·L-1)BOD5(mg·L-1)(mg·L-1)pH(mg·L-1)(mg·L-1)(ms·cm-1)SS(mg·L-1)℃TP(mg·L-1)(mg·L-1)(mg·L-1)10500～12350600～10001547～20257.45～8.00.350.283063～14730～342～160.550.062　　1,COD。BOD5COD0.1,;CN5,。+。1.3　试验规模及参数0.5m3d;COD5kg(m3·d);UBF(32±2)℃;A2d;O(O1+O2)6d;200%～300%;ODO　3～7mgL。2　2.1　污泥的接种与驯化UBF,1∶1,10gL。AOMBR,2500mgL。,。C、N、P2d,,COD,。2.2　启动运行阶段,,,2。,25℃,,。1,4000mgL。3　3.1　容积负荷与去除率CODCOD3。1—COD;2—COD;3—COD;4—COD;5—COD。3　CODCODCOD,,12000mgL。,COD,COD60%～70%,COD50%～65%75%,90%。CODCOD。[2]MBR,,MBR。,COD500～1000mgL,10000mgL,1200mgL,。[3],,NH+4-N600mgL,NH+4-N2000mgL,。UBF-AOMBR,。40　　　20086263　　,UBFUASB,COD6～7kg(m3·d)。AOMBR。AOMBRCOD2kg(m3·d)。3.2　碱度和pH值,()(),pH、、、[4]。pH6.8～7.2,,。(VFA)。pH7.2～8,pHpH,7.5～8.2,。pH7,HRT。3.3　AOMBR系统中NH+4-N的去除AOMBRNH+4-N4。4　AOMBRNH+4-NUBFNH+4-N,NH+4-NAOMBR。AOMBRCN2～3,CN0.8～1.2,,,。4,NH+4-N2000mgL,NH+4-N50～100mgL,NH+4-N95%。NH+4-N1000mgL,NH+4-N50mgL,0.25kg(m3·d)。2d、4d,MBRNH+4-N。,,O。1gNH+4-N,7.14g,5.8gNaOH。(3%)(6%)。3.4　回流比的影响,。,DO,N2,,,[5]。,3NH+4-N2。,NH+4-N。3.5　膜污染及清洗AOMBR,1,,MLSS4000mgL,。3,MLSS10gL。AOMBR,,。,MLSS6000mgL。,0.4%HCl、0.5%NaOH、0.4%NaClO10h,。。3.6　SS的变化UBFAOMBR,SS0mgL。4　(1)UBF-AOMBR。COD10000mgL,COD1000mgL,COD60%～70%,COD50%～75%,COD90%。UBFCOD6～7kg(m3·d)。(2)AOMBR,NH+4-N2000mgL,NH+4-N50～100mgL,NH+4-N95%。(3)UBFpH7.2～8,pH7.5～8.2。,pH。(68)41　　　20086263,,5500～7500μscm,150～400μscm,94.55%～97.27%,《》,75%,,25%。1.4.3　,25%,,,。1.4.4　(30～40gL),,,。,,,,,,,。2　2。2　()m37.952.653.7329.212.3445.8835.081.8011.0747.95(+)(-)+2.073　(1),,。(2),,。(3),,,,。(4),,,(,≥12m3),,、。(5),、,,(),。[1]　.,.:,1996[2]　,,.、.,2004,20(9):47-49[3]　..,2003,22(4):29-31　　210024　　93304#　[phone]E-mail　[e-mail]2007-10-09(41)(4)AOMBR,3。(5)AOMBRMLSS10000mgL,,、、NaClO,,75%。[1]　,..,2001,23(4):187-189[2]　,.-.,1995:95-102[3]　..:,1991[4]　...,2007,23(13):56-59[5]　,..,2002(18):3　　101102　　E-mail　[e-mail]2007-09-2868　　　20086263TREATMENTOFPHARMACEUTICALWASTEWATERBYUASB-FACULTATIVEAEROBE-CONTACTOXIDATION-AIRFLOATPROCESSZhangShuhai　ZhuXuemei　LiYinghui(22)……………Abstract　TheprocessofUASB-facultativeaerobe-contactoxidation-airfloatwasusedtotreatapharmaceuticalwastewaterofhighconcentration.WhenBOD5,CODandSSoftheinfluentwere15000,8800and2500mgL,thoseoftheeffluentwouldbe164,20.3and38mgLrespectivelyaftertreatingthewastewaterthroughfourstepsusingthesaidprocess.Thisprocessfeaturesstablesystem,lesssludgeandproductionofmathaneetc,whichisworthpopularizing.Keywords　treatmentofpharmaceuticalwastewater　processofUASB-facultativeaerobe-contact　oxidation-airfloatAPPLICATIONOFAIRFLOATATION-HYDROLYSISACIDIFICATION-MBRTECHNIQUEINTREATINGWASTEWATERFROMSTEAMINGWOODQinWeijie　ZhangXingwen　YuPengfeietal(24)……………………………………………………………………………………………………………………………………Abstract　Theprocessofairfloatation-hydrolysisacidification-MBRwasusedformixedtreatmentofdomesticsewageandwastewaterfromcookingwood(mixingratewas1∶1).Thewastewaterfeatureshighcontentofligninandpoorbiodegradationandsoon.Underthestableconditionofdaytreatingcapacityof80m3,theeffluentwaterreachesthedischargingstandardsofdomesticwater(GJT48-1999)andcanbedirectlyusedincookingprocessandpartofitusedingreeningaroundtheplantandflushingtoilet.Keywords　boilingwastewater　airflotation　hydrolysisacidification　MBRTREATMENTOFPRINTINGANDDYEINGWASTEWATERBYPROCESSOFCOAGULATIONDEPOSITION-DELAYEDAERATION-SLAGADSORPTIONLiangYixin(27)………………………………Abstract　Aimingatthecharacteristicsofprintinganddyeingwastewater,theprocessofcoagulationdeposition-delayedaeration-slagadsorptionisusedtotreatthiswastewater.TheoperationofprojectpracticeshowsthattheremovalratesofBOD5andCODareupto94%and97%respectivelywithadecoloringcapacityof72%aftertreatmentofthewastewaterbythesaidprocess,whoseeffluentcanmeetthedischargestandard.Keywords　printing&dyeingwastewater　coagulationdeposition　delayedaeration　biochemicaltreatmentAPPLICATIONOFVERTICALCUT-OFFCURTAINTOSANITARYLANDFILLSITEINPLAINAREASYaoYouchao　BaoZhongwei(29)………………………………………………………………………………………Abstract　Thefunctionandactionofverticalcut-offcurtainforsanitarylandfillwerediscussedthroughengineeringcases.Thecomparisonofthreekindsoftypicalcut-offcurtainswasmadewithcasesapplication,andthechoiceofcut-offcurtaintypewassuggested.Keywords　verticalcut-offwall　horizontallinersystem　permeabilitycoeffient　groundwaterTHEEXPERIMENTALSTUDYONFASTCULTIVATINGOFGRANULARSLUDGEWITHEXPANDEDGRANULA