侧沟式膜泥法一体化OCO工艺中水力停留时间对脱氮除碳的影响殷旭东

3　8环境工程学报Vol.3,No.820098ChineseJournalofEnvironmentalEngineeringAug.2009OCO殷旭东1,2　李德豪1,3＊　刘勇弟3　凌洪吉1,2　桂枝2(1.,525000;2.,210044;3.,200237)　　OCOOCO,,,(HRT)。COD260～360mg/L,DO2mg/L,0.5mg/L,MLSS4500mg/L,HRT。:HRT,COD,COD90%,HRT;HRT12h,,93%80%。　OCO　　　X703　　　A　　　1673-9108(2009)08-1395-04InfluenceofhydraulicretentiontimeonnitrogenandcarbonremovalbysidechannelintegralOCOprocesswithbio-filmandactivatedsludgeYinXudong1,2　LiDehao1,3　LiuYongdi3　LingHongji1,2　GaoGuizhi2(1.SchoolofChemicalEnvironmentalEngineering,MaomingUniversity,Maoming525000,China;2.SchoolofEnvironmentalScienceEngineering,NanjingUniversityofInformationScienceTechnology,Nanjing210044,China;3.SchoolofResourceEnvironmentalEngineering,EastChinaUniversityofScienceTechnology,Shanghai200237,China)Abstract　BasedontheclassicOCOprocess,anovelintegratedOCOprocesswithbio-flimintheanaero-biczoneandsidechannelintegralsettlementtankwasdeveloped.Influencesofhydraulicretentiontime(HRT)onthenitrogenremovalwerestudiedwhentheinfluentCODwas260～360mg/L,DOwasmorethan2mg/Lintheoxiczone,DOwaslessthan0.5mg/Lintheanoxiczone,MLSSwasabout4500mg/L.TheresultsshowedthattherewasnochangewiththeeffluentCODobviously,theCODremovalratewasmorethan90%,theefflu-entammonianitrogendecreasedgraduallywhenHRTincreasedgradually.ButonlywhenHRTwas12h,theammonianitrogenandthetotalnitrogenremovalrateswereallsatisfactoryand93%and80%respectively.Keywords　integratedOCOprocess;hydraulicretentiontime(HRT);nitrogenremoval:(8152500002000012);(2002C32106);(2001-0167):2008-10-11;:2008-11-19:(1982～),,,。E-mail:[e-mail]＊,E-mail:[e-mail]　　PuritekA/S2080OCO[1～3]。,,,。OCO、。OCO———OCO。,,、;,,,,、、。、、,。,3,(HRT)[4～8]。HRT。1　1.1　1。PVC,95cm,40cm,35cm,240L(∶∶1∶2.6∶3.2),14.4L。、、、,3080mm。OCO,,,,,,,,。,。1　OCOFig.1　SchematicdiagramofintegrativeOCOprocess1.2　,、、、、、、、,1。1.3　,。,,,。15～20d,3d。1　Table1　ExperimentalsewagequalityCOD(mg/L)260～360309(mg/L)31～4841TN(mg/L)31～4841TP(mg/L)4.6～6.55.5pH7.5～8.07.6(℃)25～30261.4　CODHACH;;-;TP;;pHpH;DOHACHLDOTMHQ10;MLSS。1.5　,(5、10、20、30、40、5060L/h)HRT(48、24、12、8、6、4.84h)。:COD300mg/L,DO2mg/L,DO0.5mg/L,MLSS4500mg/L,pH7.5～8.0,25～30℃。2　2.1　CODCOD300mg/L,DO2mg/L,0.5mg/L,MLSS4500mg/L,pH=7.5～8.0,25～30℃,HRT(4、4.8、6、8、12、2448h)7d,1～2d1,COD2。2,COD260～360mg/L,COD37mg/L,90%,93%。HRT4h48h(60L/h5L/h),COD。HRTCOD,,。13968:OCO2　HRTCODFig.2　CODremovalefficiencyatdifferentHRTCOD,:①,,,;②;③。,HRT。HRT3h0.25h(5L/h60L/h),,,,OCO(HRT3～4h),。2.2　,,-,,,,。2.2.1　氨氮的去除,NH3-NNO-3-NNO-2-N,(HRT),DO≥1.5mg/L,。COD300mg/L,DO2mg/L,0.5mg/L,MLSS4500mg/L,pH=7.5～8.0,25～30℃,HRT(4、4.8、6、8、12、2448h)7d,1～21,3。3　HRTNH3-NFig.3　NH3-NremovalefficiencyatdifferentHRT3,NH3-N31～48mg/L,41mg/L,HRT,。,。HRT8h,NH3-NHRT,NH3-N10mg/L。,HRT,,HRT,,[4],。HRT6h,15mg/L,NH3-N61%;HRT4h,50%。8h,,10mg/L。HRT8h,10mg/L,;HRT12h,HRT,(92%),,3mg/L,0.5mg/L。HRT,,HRT,,。2.2.2　总氮的去除,HRT,DO0.5mg/L,NO-3-NNO-2-N。COD300mg/L13973,DO2mg/L,0.5mg/L,MLSS4500mg/L,pH=7.5～8.0,25～30℃,HRT(4、4.8、6、8、12、2448h)7d,1～2d1,TN4。4　HRTTNFig.4　TNremovalefficiencyatdifferentHRT4,TN31～48mg/L,TNHRT()。HRT24h48h,HRT,,,,,,TN33～42mg/L,,10%。HRT12h,DO,,,TN,TN80%。HRT6h8h(40L/h30L/h),,,,60%。HRT4.8h4h,HRT,,,,40%。　　3、4,7HRT,HRT12h(20L/h),,。3　　(1)OCO、、,-,,。(2)HRT48h4h,COD,90%,COD40mg/L,,。(3),HRT12h,,93%80%。[1].OCO.,2001,32(3):48～49[2].OCO.,2000,26(3):1～2[3],,,.OCO.,2004,30(8):17～20[4],,..,2008,30(1):37～40[5]BanerjeeA.,ElefsiniotisP.,TuhtarD.EffectofHRTandtemperatureontheacidogenesisofmunicipalprimarysludgeandindustrialwastwater.WaterScienceTechnolo-gy,1998,38(8):417～423[6],,,..,2006,27(9):1862～1865[7],,.OGO.,2008,(4):72～73[8],,,..,2008,24(3):21～251398