高含酚焦化废水处理工艺的实验研究单明军

　　:2006-06-05:(1962-),,,,。:1673-1212(2006)06-0072-03高含酚焦化废水处理工艺的实验研究单明军1,冯卫强2,杨建芳3,姜锐4(1.,110004;2.4,114044;3.,150090)　:试验采用改型二段好氧活性污泥法,对鞍钢焦化厂产生的高含酚废水进行了脱酚处理研究。试验中发现:采用“生物-铁”法进行培养驯化后,脱酚污泥活性高、耐酚负荷能力强;在微生物“饥饿态”下,脱酚速率进一步加快,工艺运行时间缩短。工艺运行过程稳定,酚去除率高,大部分被降解。处理后废水酚浓度小于0.5mgl,COD浓度小于100mgL,达到了国家《污水综合排放标准》(GB8978-96一级)。本研究为高含酚焦化废水等工业废水的生物脱酚处理提供了有效途径。:生物—铁;饥饿态;焦化废水:X703.1:A,。、1600mgL,,。[1]:1、;2、;3、。,;;,。“”,、,。1　1　1.1　2L,(1)。。1.2　,2。1:2　1　HRT(h)T(℃)pHSV(%)DO(mgl)R634±16～935～+402～30.5434±16～915～251.5～2-434±16～9-2～3-·72·31620069ENVIRONMENTALSCIENCEANDMANAGEMENTVol.31No.6Sep.20061.3　,2。2　(mgl)COD(mgl)(mgl)(mgl)1600～23004200～480050～1005～15　　,3。,。3　4-CODCr-2　2.1　“-”2080。,。,,[2]。,。,Fe2+Fe3+。,[2]。40d,。,,,SVI175～200;,。“-”,。2.2　,。,:,,。,。,,,,。,,,、,。“”。,。,,。,[3]。,“”。,。3:3　　　,3gl,1.33kgkgMLSS?d。2,“-”,,,1300～1987mgl110～390mgl,80.3～91.0%。COD500mgl,87.5%。“”,。,1600mgl300mgl12h,“”6h。,“”,。,2～3,,10%,COD20%。·73·31620069·Vol.31No.6Sep.20064:4　　　SS2gl,0.5kgkgMLSS·d。,。,,,100%。COD100mgl,10mgl,0.5mgl。,,。,。33℃[3],27℃36℃。,,;,,。,,,。3　(1)“-”,,。,,。(2),,。1600mgl,COD4600mgl,COD99%。(3),“”,9～12h6h,。(4),。:[1]李琳.焦化含酚废水治理新方法[J].辽宁城乡环境科技,2001.21(1).51-52.[2]吴婉娥.废水生物处理技术[M].北京:化学工业出版社,2003.106-107.[3]张芳西.含酚废水的处理与利用[M].北京:化学工业出版社,1983.222-223.ExperimentalStudyontheTreatmentProcessofCoking-wastewaterContainingHighDensityofPhenolSHANMing-jun1,FENGWei-qiang2,YANGJian-fang3,JIANGRui4(1.NortheasternUniversity,Shenyang110004,China;2.4DepartmentofEnvironmentalEngineering,AnshanUniversityofScienceandTechnology,Anshan114044,China;3.MunicipalandEnvironmentalEngineeringSchoolHaerbinInstituteofTechnology,Harbin150090,China)Abstract:Thetreatmentwasappliedtomodifiedtow-stageactivatedsludgeprocessandwasstudiedwithdephenolizationofcoking-wastewaterincludinghighdensityofphenolwhichcomefromcokingplantofAnshanSteelandIronCompany.Itshowed:sludgeacti-vationwasimprovedandloadingofdephenolizationwasstrengthenedbythetechniqueof“biologic-iron”.Theaccelerationoftherateofdephenolizationresultedincuttingdownthetimeoftechnologicalprocessinthestateof“hungry-state”ofmicroorganism.whentechno-logicalprocesswasrunsteadilytherateofdephenolizationwashighandphenolwasdisposedcompletely.PhenolandCODofeffluentwaslessthan0.5mgLand100mgLrespectively.Theconsequencemetthecaseoftheemissionstandardofwastewater(GB8978-96).Thestudysuppliedaeffectivewaytoremovephenolbybiologicaltreatmentprocessforcoking-wastewaterincludinghighdensityofphenolandsoon.Keywords:biologic-iron;hungry-state;coking-wastewater·74·31620069·Vol.31No.6Sep.2006