稠油废水生物处理主要影响因素分析_王鑫

稠油废水生物处理主要影响因素分析王鑫1,2,郭书海1,3*,李凤梅1,白玉兴41.中国科学院沈阳应用生态研究所,辽宁沈阳1100162.中国科学院研究生院,北京1000393.沈阳大学环境工程重点实验室,辽宁沈阳1100414.辽河油田华油环保工程公司,辽宁盘锦124002摘要:有机聚合物和石油烃类物质是稠油废水中的主要污染物.应用辽河油田锦采污水处理厂稠油废水中筛选分离出的菌株B0501,分析其在稠油废水生物处理过程中对废水CODCr的去除作用,研究了不同温度,pH,水力停留时间以及添加氮、磷营养盐等条件下微生物对废水CODCr去除的影响.结果表明:稠油废水中投加的外源微生物B0501提高了废水中CODCr的去除率;接种后,废水在30e,pH为715,水力停留时间为216h,添加氮、磷营养盐(Q(氮)PQ(磷)为5163)的条件下,废水CODCr去除率大幅度提高,其Q(CODCr)满足国家污水综合排放一级标准(GB8798-1996).经形态观察和生理生化反应鉴定,菌株B0501为液化金杆菌(Aureobateriumliquefaciens).关键词:稠油废水;生物处理;CODCr;影响因素;液化金杆菌中图分类号:X703.1文献标识码:A文章编号:1001-6929(2006)04-0042-05AnalysisofMainAffectingFactorsinMicrobialTreatmentProcessforViscousOilWastewaterWANGXin1,2,GUOShu-hai1,3,LIFeng-mei1,BAIYu-xing41.InstituteofAppliedEcology,ChineseAcademyofSciences,Shenyang110016,China2.GraduateSchoolofChineseAcademyofSciences,Beijing100039,China3.KeyLaboratoryofEnvironmentEngineering,ShenyangUniversity,Shenyang110041,China4.EnvironmentalProtectionEngineerCompany,LiaoheOilfield,Panjin124002,ChinaAbstract:Organicpolymersandpetroleumhydrocarbonsarethemainpollutantsinviscousoilwastewater.ThepredominantstrainB0501wasscreenedfromviscousoilwastewaterfromJincaiSewagePlantofLiaoheOilfieldtoanalyzethefunctionofthestrainontheCODCrremovalrateinthebiologicaltreatmentprocessoftheviscousoilwastewater.Theconditionsincludingtemperature,pH,hydraulicretentiontimeandphosphorusandnitrogennutrientsaffectingtheCODCrremovalrateofviscousoilwastewaterbymicroorganismwereinvestigated.ResultsshowedthattheinoculatingofstrainB0501improvedtheCODCrremovalrate.Undertheconditionsof30e,pH7.5,hydraulicretentiontime216handaddingphosphorusnutrientsmeetingQ(N)BQ(P)ratioof5163,theCODCrremovalratecouldbeimprovedgreatly,andQ(CODCr)valuecouldmeetNationalIntegratedWastewaterDischargeStandards(GB8798-1996).StrainB0501wasidentifiedasAureobateriumliquefaciensaccordingtotheirmorphological,physiologicalandbiochemicalcharacteristics.Keywords:viscousoilwastewater;biologicaltreatment;CODCr;affectingfactors;Aureobateriumliquefaciens收稿日期:2005-12-03基金项目: