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[](1963—),1983,,。:13837759071,0377-63837853,E-mail:luolixin63@163.com。[]2009-11-24(),,。“”,,,,。Deeplytreatmentofpetrochemicalwastewaterbyelectrocoagulation-MBRtechnologyLiLiang,RuanXiaolei,ChenJun,ZhangYanfang,HuoYing,ZhangYing(CNOOCTianjinChemicalResearch&DesignInstitute,Tianjin300131,China)-MBR,,,,,(,300131)[]-MBR,:-,45mA/cm2,6mm/s,1.17kW·h/t;MBR(HRT)6h,(DO)2.0~2.5mg/L。CODCr、70%,BOD80%,。[];MBR;;;[]X703.1[]B[]1005-829X(2010)04-0059-04Abstract:Electrocoagulation-MBRtechnologyhasbeencarriedouttodeeplytreatpetrochemicalwastewater.Theresultsshowthatthebestrunningconditionsareasflows:adoptingiron-carbonelectrode,thecurrentdensityis45mA/cm2,watervelocitybetweenplatesis6mm/s,energyconsumptionis1.17kW·h/t,hydraulicretentiontime(HRT)ofMBRis6h,dissolvedoxygen(DO)is2.0-2.5mg/L.Undertheseconditions,theremovingratesofbothCODCrandoilsexceed70%,theremovingratesofbothBODandammonia-nitrogenexceed80%.Thequalityofef-fluentwaterachievesthatofwaterrecycle.Keywords:electrocoagulation;membranebioreactor;petrochemicalwastewater;advancedtreatment;regeneratedwaterrecycle!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!30420104IndustrialWaterTreatmentVol.30No.4Apr.,2010,1m31.14。,3000/t,2000mg/L,1m36.0。1/5。4。,,。,、,,。,,。[][1],,,.[J].,2007,31(3):65-67.[2],,,.[J].,2006,26(11):50-52.[3],,,.[J].,2004,35(2):29-32.59——2010-04,30(4),,〔1〕;MBR,、〔2〕。,。-MBR。11.1CASS,:pH7.2,CODCr148.6mg/L,BOD30.5mg/L,22.8mg/L,66.0mg/L,15.4NTU,6.8mg/L。1.2,278mm×63mm×3mm,,。2m3/h。MBR,,0.2μm,0.5mm,0.8mm,0.5m2。,D150mm×1600mm,1.2m,20L。,。1。1.3,;MBR,(HRT)、(DO),MBR;-MBR。22.12.1.1-、-,,,1。1,-,CODCr、、-。CODCr50%。(Al3+、Fe2+)。。,〔3〕。,,·OH,Fe2+Fe3+、,。OH-Fe(OH)+、Fe(OH)2+,、,〔4-5〕,,MBR。2.1.2-,,,,,CODCr,2。2,CODCr,,。,CODCr,。>45mA/cm2,CODCr,1pHCODCr/(mg·L-1)/(mg·L-1)/NTU/(mg·L-1)7.2148.666.015.46.8-7.886.116.88.64.8,-8.0102.530.612.15.960——2010-04,30(4),,,。45mA/cm2,8A。。,。,,,。,,,Fe(OH)2+,,CODCr。2.1.3-,,8A45mA/cm2,,CODCr,3。3,CODCr,6mm/s,CODCr,1.5m3/h。>6mm/s,CODCr。,。,,,。6mm/s,1.5m3/h。2.1.4-,45mA/cm2,6mm/s,,2。2,,,CODCr70mg/L,>50%,<15mg/L,3.1mg/L,MBR,MBR。8A,1.5m3/h,1.17kW·h/t。2.2MBR2.2.1MBRMBR20L,:40d;8~10L/(m2·h);MLSS8000~10000mg/L;8min,2min;20min,30s。MBR,,2。2.2.2HRTCODCr,HRT,HRTCODCr,4。4,CODCrHRT,HRT。,MBR,CODCr。HRT,,,CODCr。HRT=6h,MBRCODCr,CODCr45.1mg/L。HRT>6h,CODCr,<50mg/L,CODCr,HRT6h。2.2.3DO(HRT=6h),DO1.0~1.5、1.5~2.0、2.0~2.5、2.5~3.0、3.0~3.5mg/L,DO,3。2pHCODCr/(mg·L-1)BOD/(mg·L-1)/(mg·L-1)/(mg·L-1)/NTU/(mg·L-1)7.2148.630.522.866.015.46.87.872.424.614.112.45.33.1,:-MBR61——2010-04,30(4)3,DO1.0~1.5mg/L,CODCr,,DO,CODCr。DO,CODCr,DO2.0~2.5mg/L,CODCr。DO>2.5mg/L,CODCr。DO,,。,DO2.0~2.5mg/L。2.3-MBRMBR,-,45mA/cm2,6mm/s,MBRHRT6h,DO2.0~2.5mg/L,-MBR,4。4,,。3(1),-,:45mA/cm2,6mm/s。,CODCr>50%,1.17kW·h/t。(2)MBR:HRT6h,DO2.0~2.5mg/L。,CODCr50mg/L。(3),-MBR,CODCr、70%,BOD80%,。[][1],,,.-O3[J].,2006,33(4):70-74.[2],.[J].,2008,35(1):67.[3],.[M].:,2007:212-223.[4],.[J].,2001,21(1):11-15.[5],.-[J].,1999,7(3):54-57.DO/(mg·L-1)CODCr/(mg·L-1)/(mg·L-1)1.0~1.553.58.71.5~2.048.25.22.0~2.545.03.42.5~3.045.13.23.0~3.545.23.33DOCODCr[](1980—),2005,。:022-26689132,E-mail:liliang80cn@163.com。[]2009-11-26()!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!4-MBRpHCODCr/(mg·L-1)BOD/(mg·L-1)/(mg·L-1)/(mg·L-1)/NTU/(mg·L-1)7.2148.630.522.866.015.46.87.344.14.43.503.31.9:。《》302010《》30。《》3030。30《》。、,《》30,2010、、,、、,《》30,。:(1)《》30。(2)30。(3)。。2010730。:iwt@iwt.cn(“30”):022-2668933062——
本文标题:电絮凝MBR组合工艺深度处理石化工业废水的研究李亮1
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