复合式厌氧生物滤池处理焦化废水实验研究肖文胜

2006,Vol.23No.2　Chemistry&Bioengineering47　　　:2005-10-17:肖文胜(1968-),男,湖北汉川人,博士,副教授,研究方向:水污染控制。电话:[phone],E-mail:[e-mail]。(黄石理工学院环境科学与工程学院,湖北黄石435003)　　　:以焦化废水为研究对象,采用不同规格的球形轻质陶粒作填料,在厌氧生物滤池中对焦化废水进行了处理,目的在于加强对难降解物质的去除及部分水解功能。实验结果表明,在停留时间9～12h下,能同时兼顾有机物去除和废水的可生化降解性,为后续段对废水的进一步处理创造了有利条件。:厌氧/好氧;生物滤池;焦化废水:X703　X784　　　　:A　　　　　:1672-5425(2006)02-0047-03　　、,,[1]。、、/(A/O),、。,/COD,,,,[2]。[3,4],,,,,。,、、,,,。1　1.1　(1),,400mm,6000mm。、。3000mm。1000mm,UASB,UASBBF。,。,、。1.2　(1):6～16h。(2):,:20～25℃。(3)pH:pH=6.5～7.5。1　Fig.1　Anaerobicbiologicalfilter1.3　,,。,。(COD1300～1700mgL-1、NH3-N150～284mgL-1),pH,16h。。15～20d,,COD,20%,。80～90d。1.4　,5～7d,8。:/2006248　　　:COD;BOD5;。2　2.1　[4],,,,,,COD。COD。212h、COD、BOD5。2　HRT12hFig.2　RemovaloforganicsubstanceunderHRT12h2,:COD1161.5mgL-1、BOD5271.9mgL-1,:COD810.8mgL-1、BOD5172.0mgL-1。COD30.2%、BOD536.7%。,CODBOD5,BOD5,,BOD5。,BOD5COD,,,,,。2.2　312h、NH3-N。,NH3-N230.2mgL-1,NH3-N171.6mgL-1,25.5%。,NH3-N。,,NH3-N,,。,。3　HRT12hFig.3　RemovalofNH3-NunderHRT12h2.3　(HRT)[4,5],,。。,,、。,,,。1。1　HRTTab.1　ComparisonofremovaleffectoforganicsubstanceunderdifferentHRTHRT/h691216COD/mgL-1/mgL-1/%1123.5862.823.21109.6811.126.91161.5810.830.21133.1778.431.3BOD5/mgL-1/mgL-1/%267.4209.621.6245.2179.526.8271.9172.036.7277.6167.139.8BOD5/COD0.2380.2430.2210.2210.2340.2120.2450.2151,6h,,。BOD5/CODBOD5/COD,,,。16h,,。BOD5/CODBOD5/COD,。12h,:/2006249　　　,BOD5/CODBOD5/COD,。,,9～12h。3　(1),,。、、,。(2)。,,BOD5/COD,。9～12h。:[1]　,,.[J].,2002,22(7):1-4.[2]　.[J].,1999,(4):16-26.[3]　,,.//[J].,2000,19():63-66.[4]　,,,.A1/A2/O[J].,2004,24(2):242-248.[5]　ZhangM,TayJH,QianY.Comparisonbetweenanaerobic/anox-ic/oxicandsystemsforcokeplantwastewatertreatment[J].Envi-ronEng,1997,123(9):876-883.TestforTreatingCokePlantWastewaterintheCompositeAnaerobicBiologicalFiltersXIAOWen-sheng(DepartmentofEnvironmentalScienceandEngineering,HuangshiInstituteofTechnology,Huangshi435003,China)Abstract:Cokeplantwastewaterwastreatedbythecompositeanaerobicbiologicalfilters,whichwaspackedwithexpandedsphericalclay.Undertheconditionoftheinfluentliquidtemperature20～25℃,HRT9～12h,mixtureliquidrecycleratio3∶1,aerationundertakenusingaconstantair:liquidratioof(3～6)∶1,theresultsindicatedthatanaerobicunitactedanimportantroleonremovalofbothorganicsimplenitrogenheterocycliccompoundsandphenolofthewastewatertreated.Thesystemcouldeffectivelyremovethepollutantandtheav-erageremovalrateofCOD、BOD5was30.2%、36.7%,respectively.Thequalityofeffluentmettheneedoffol-lowingtreatment.Keywords:anaerobic/aerobic;compositeanaerobicbiologicalfilters;cokeplantwastewater聚酯塑料再生与加工有重大创新、“863”———PET,,“”。,20%,(PET)18%。,2005140t,,。,。2003,、“863”“PET”。,,,,、,(PC)、。,,、。,。,6,2,45。