多孔软性填料对乳品废水好氧生物降解过程中COD降解速率的影响于荣丽

32420074ENVIRONMENTALSCIENCEANDMANAGEMENTVol.32No.4Apr.2007:2006-11-17:(1977-),,,,。:1673-1212(2007)04-0113-03COD于荣丽1,孙铁珩2,3,贾宏宇2,3,赵宇2,3(1.,110168;2.,110044;3.,110016)　:近年来中国的牛奶生产呈快速增长之势,乳品加工业成为近几年发展较快的产业之一。因此,乳品废水的处理就成为必须要解决的问题。目前,乳品废水的处理以好氧生物处理法为主。研究了投加多孔软性填料后乳品废水好氧生物处理过程中COD的变化,试验结果表明,加入多孔软性填料,乳品废水中有机污染物的降解速率显著增加;在这个过程中,起主要作用的是附着在填料表面的好氧微生物的降解作用;同时,系统的抗污染物冲击负荷能力显著提高。:多孔软性填料;乳品废水;好氧生物处理:X703:BImpactofSoftStuffingwithPoresontheCODRemovingRateintheAerobicBoidegradingofMilkProducedWastewaterYuRongli1,SunTieheng2,3,JiaHongyu2,3,ZhaoYu2,31.CollegeofMunicipalandEnvironmentalEngineering,ShenyangJianzhuUniversity,Shenyang110168,China;2.Keylaboratoryofenvironmentalengineering,ShenyangUniversityShenyang110044,China;3.KeyLaboratoryofTerrestrialEcologicalProcess,InstituteofAppliedEcology,ChineseAcademyofSciences,Shenyang110016,China)Abstract:Inrecentyears,themilkproductionofourcountryisincreasingfastly,milkingsprocessingtradebecomesoneofindustriesthatdevelopveryquicklyinlastfewyears.Therefore,thetreatmentofdairywastewaterbecomestheimportantproblemthatwillsolve.Now,aerobicbiologicaltreatmentisthemainmethodofdairywastewatertreatmen.tStudiedtheCODchangesaf-teradditionofsoftstuffingwithporesintheprocessesoftheaerobictreatmentofdairywastewater.Theresultsofexperimentsshowthatafteraddingsoftstuffingwithpores,thespeedofdecompositionoforganicpollutantsisobservablyenhanced;inthisprocess,decompositionismostlyundertheactofaerobicmicroorganisms,insertedonthesurfacesofstuffing;atthesametime,fightingimpactloadabilityofthissystemissharplyincreased.Keywords:softstuffingwithmanypores;dairywastewater;aerobicbiologicaltreatment　　,。,,、。,[1-2]。,BOD5/COD0.5,,,1,。,,,。11332420074CODVol.32No.4Apr.20071　1.1　。1.2　1,4(),、、、,14,4,,4。,,12,34。1　1.3　,COD。,1、2、3、4(5L20ml),3、4,,,,COD(1)。,(COD100mg/L),430ml,,,,8,COD(2)。,,,5L,,COD(3)。2　2.1　1。1:,,COD,COD;,COD,,,,,,,。1　COD(mg/L)181665040215428206614102473825671231814818647245802.2　2。2　COD(mg/L)1106853426526323725921068470369———3991497244———4943398174203200199:“—”,。　　,COD,,。,4COD,,,,。,,。2.3　,,5L,,,3。11432420074CODVol.32No.4Apr.20073　COD(mg/L)11036383210573403103912441104213　　3,4COD1000mg/L,8h,COD,。:,。2.4　,,,,[3,4];,,,,[5]。,3、4COD。CODCOD,(0.3dm3～0.4dm3,7%),,,。2.5　,,,,,10,,,,,,。,,,10,;,,。3　(1),,,,。(2),,,;,。(3),。:[1]GVIDALG,CARVALHOA,MÉNDEZR,eta1.1nfluenceofthecontentinfatsandproteinsontheanaerobicbiodegradabilityofdairywastewater[J].BioresourceTechnolo-gy,2000,74(3):231-239.[2]高大文,彭永臻,王淑莹,等.利用ORP和pH控制豆制品废水的处理过程[J].哈尔滨工业大学学报,2003,35(6):647-650.[3]LeeHyungSool,ParkSeJin,YoonTaiI.lWastewatertreatmentinahybridbiologicalreactorusingpowderedmineralseffectsoforganicloadingratesonCODremovalandnitrification[J].ProcessBiochemistry,2002,81(1):81-88.[4]赵庆良,黄汝常.复合式生物反应器中生物膜的特性[J].环境污染与防治,2000,22(1):4-7.[5]FadiGebara.Activatedsludgebiofilmwastewatertreat-mentsystem[J].WatRes,1999,33(1):230-238.2007《》115