MBR工艺处理发酵类制药废水中试研究廖志民

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MBR廖志民(江西金达莱环保研发中心有限公司,江西南昌330100)   : 采用MBR工艺处理发酵类制药废水,通过逐步改变水力停留时间(HRT),对反应器进水和出水的COD、氨氮及MLSS、DO和膜压等进行了连续监测,考察了处理效果。结果表明,当进水COD为400~1100mg/L、氨氮为50~110mg/L时,在MLSS为18000~19000mg/L、HRT从20h逐步缩短到8h的条件下,反应器对COD、氨氮仍有较好的去除效果,运行期间的去除率均值分别为73%、93%;此外,滤膜工作和清洗周期正常,无损膜、堵膜现象。  : 制药废水; MBR; 污泥浓度:X703  :C  :1000-4602(2010)09-0131-03PilotStudyonPharmaceuticalWastewaterTreatmentbyMembraneBioreactorLIAOZhi-min(JiangxiJindalaiEnvironmentalProtectionResearchandDevelopmentCenterCo.Ltd.,Nanchang330100,China)  Abstract: MBRprocesswasusedtotreatpharmaceuticalwastewater.TheinfluentandeffluentCOD,ammonianitrogen,MLSS,DOandmembranepressurewerecontinuouslymonitoredbygraduallychangingthehydraulicretentiontime(HRT),andthetreatmentefficiencywasinvestigated.TheresultsshowthatwhentheinfluentCODandammonianitrogenare400to1100mg/Land50to110mg/Lre-spectively,MLSSis18000to19000mg/LandHRTreducesfrom20hto8hgradually,thereactorstillhasexcellenttreatmentefficiency,andtheremovalratesofCODandammonianitrogenreach73%and93%respectively.Inaddition,themembraneworkswellanditscleaningcycleisnormal,withoutmem-branedamageandblockage.  Keywords: pharmaceuticalwastewater; MBR; sludgeconcentration  、、、,[1]。,、、[2]、。(MBR)、、、、[3]。,,MBR。1 试验装置与方法1.1 1。1 Fig.1 Schematicdiagramofpilot-scaleexperimentalsetup  MBR,·131·第26卷 第9期2010年5月            中国给水排水CHINAWATERWASTEWATER             Vol.26No.9May20100.64m3。,。MBR0.4m3,,0.1~0.4μm,0.328m3/(m2·d),12min、3min。1.2 ,、、,、,COD400~1100mg/L、BOD550~300mg/L、pH7.5~8.0、50~110mg/L。1.3 COD:;:。2 结果与讨论200937—59,(HRT),、COD、MLSS、、,。2.1 20,9000~10000mg/L;,10d,18000mg/L;20,18000~19000mg/L;,,(2)。2 Fig.2 Variationofsludgeconcentrationwithtime2.2 20d,4mg/L;10d,3~3.5mg/L;20,0.5mg/L;,0.2mg/L,,3。3 Fig.3 VariationofDOconcentrationwithtime2.3 HRT、,MBRHRT20h8h,、,MBR。,37—24,HRT20h;325—44,HRT18h;45—9,HRT14h;410—26,HRT10h;427—59,HRT8h。2.4 CODMBRCOD4。4 MBRCODFig.4 RemovalefficiencyofCODbyMBR4,COD400~1100mg/L,COD120~300mg/L。20,COD,400~700mg/L,COD,120~220mg/L。,、、HRT,MBRCOD,73%,、MBRCOD。2.5 MBR5。,·132·第26卷 第9期              中国给水排水            ~110mg/L,2~15mg/L,,4.97mg/L,93%。,0.5mg/L,8h,95%,、MBR。5 MBRFig.5 RemovalefficiencyofammoniabyMBR2.6 MBR6。6 Fig.6 Variationofmembranepressure6,37—4126d,0.028MPa,,,,0.04MPa,。,MBR,。,0.045MPa,3~4。3 与现场实际工艺处理效果的对比3.1 /,2000m3/d,HRT40h,COD300~400mg/L,COD300mg/L,COD。3.2 1。,MBR、HRT、,。1 Tab.1 Comparisonoftechnicalandeconomicindexes /(m2·m-3)0.910.4HRT/h408/(kW·h·m-3)1.70.97/(·m-3)1.020.58/(·m-3)0.080.03/(·m-3)—0.16/(·m-3)1.10.77 : 0.6/(kW·h);5;、。4 结论① 18000~19000mg/L、HRT8h,MBR,COD73%、93%,HRT20h。② ,MBR18000~19000mg/L,,。③ MBR,,、,、。④ MBR/,。:[1] ,,.[J].,2008,28(2):45-48.[2] ,.[J].,2008,34(11):79-83.[3] ,,,.[J].,2009,35(10):21-26.:(0791)3775068 13807098019E-mail:liaozhimin@jdlhb.com:2010-01-22·133·廖志民:MBR工艺处理发酵类制药废水中试研究第26卷 第9期

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