复合型生化反应器处理焦化废水的中试研究李泽峰

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李泽峰1, 魏宏斌1, 陈良才2, 唐秀华2, 陈辉洋2(1.同济大学环境科学与工程学院,上海200092;2.上海中耀环保实业有限公司,上海200092)   : 提出了一种新的复合型生化反应器,并在工程现场,结合小试的结果进行了其处理实际焦化废水的中试研究。结果表明:在污泥浓度为4g/L、温度为28℃下,厌氧水解10h后,焦化废水的B/C值可由0.29升至0.62,可生化性明显改善。在5个月的连续流试验中,系统对COD、总氮、氨氮、挥发酚的去除率分别为94.1%、80%、93.3%、99.97%,出水COD浓度达到国家二级排放标准,出水氨氮、总氮、挥发酚、硫化物、氰化物浓度达到国家一级排放标准。  : 焦化废水; 复合型生化反应器; 中试; 可生化性:X703  :A  :1000-4602(2010)05-0008-04ComplexBiochemicalReactorforTreatmentofCokingWastewaterLIZe-feng1, WEIHong-bin1, CHENLiang-cai2, TANGXiu-hua2, CHENHui-yang2(1.CollegeofEnvironmentalScienceandEngineering,TongjiUniversity,Shanghai200092,China;2.ShanghaiZhongyaoEnvironmentProtectionIndustryCo.Ltd.,Shanghai200092,China)  Abstract: Anewcomplexbiochemicalreactorwasdeveloped,andthetreatmentefficiencyofco-kingwastewaterbyitwasstudiedinapilot-scaleexperimentbasedonsmall-scaletests.Theresultsshowthatwithsludgeconcentrationof4g/L,temperatureof28℃andanaerobichydrolysisof10h,theB/Cofcokingwastewaterisincreasedfrom0.29to0.62,andthebiodegradabilityissignificantlyimproved.Inthe5-monthcontinuous-flowtest,theremovalratesofCOD,TN,NH3-Nandvolatilephenolare94.1%,80%,93.3%and99.97%respectively.TheeffluentCODmeetsthenationalsecondclassdis-chargestandardwhileNH3-N,TN,volatilephenol,sulfideandcyanidemeetthenationalfirstclassdischargestandard.  Keywords: cokingwastewater; complexbiochemicalreactor; pilot-scaleexperiment; biode-gradability  :(09C26213100782)  、,,、、、,、,。,—A/O[1~3],、。[4],,,·8·第26卷 第5期2010年3月            中国给水排水CHINAWATERWASTEWATER             Vol.26No.5Mar.2010。1 试验装置与方法1.1 ,1。1 Tab.1 Qualityofrawwastewater   COD/(mg·L-1)1895~36392358/(mg·L-1)14~81.231.55/(mg·L-1)113~140125.83/(mg·L-1)11.38~18.2816.68/(mg·L-1)323~401.4371/(mg·L-1)0~16.039.6/(mg·L-1)0.36~4.943.5/(mg·L-1)925~1412.51250pH9.42~10.239.68/1850~245023001.2 ,10L,25~30℃,,3.5~3.7g/L。,0.85%、250mL,,4g/L,TZ-2AG。,()。pH,pH。1.3 2L,PAC,0.5min,4min(,,PAM,1min),30min,。1.4 1。,,,,,,。、、,。。1 Fig.1 Flowchartofpilot-scaleprocess0.1m3/h。1,4。,2。1.5 COD:;BOD5:;:—;:,4-;:;:;:XS-1;:;:—;:;:N-(1-)-。2 结果与讨论2.1 、,[5]。2COD、BOD5。2 COD、BOD5Fig.2 AnaerobicdegradationeffectofCODandBOD5ofcokingwastewater2:COD,10h,COD1428·9·李泽峰,等:复合型生化反应器处理焦化废水的中试研究第26卷 第5期mg/L932mg/L,34.8%。,,BOD5;,,BOD5。,10h,BOD5427mg/L580mg/L;B/C,10h,0.290.62。2.2 pHCOD1985.5mg/L、BOD5595mg/L,pH6.5、7、7.5、8、8.5、9、10,,10h,pH。,pH6.5~8,pH,COD,BOD5B/C;pH8~10,pH,COD,BOD5B/C。,,pH8。2.3 2.3.1 CODCOD3。3 、CODFig.3 ChangesofinfluentandeffluentCODofeachunit3:COD1406~2421mg/L,1996mg/L,12.4%;,COD336~466mg/L,411mg/L,COD202~270mg/L,243mg/L,/COD88.3%;COD97~143mg/L,130mg/L,46.4%,COD;COD94.1%,COD。2.3.2 ,,、。,。,[4],。2。2 Tab.2 Removaleffectofnitrogensubstancesbyeachunitmg·L-1 125.83108.9124.5230.4125.2331.5543.759.102.102.1016.680012.8512.801.00000.050.0576.6065.1615.4215.4110.28  2:(60.9%),,16.68mg/L。,,108.91mg/L,11.44mg/L。A/O,,,,,。30.41mg/L,75.9%。17%,。25.232.10mg/L,,80%93.3%。,50.7%,40.7%。2.3.3 、、(8)3。3:、,0.12mg/L(99.97%)、(·10·第26卷 第5期              中国给水排水            )、0.24mg/L,。3 Tab.3 Removaleffectofotherpollutantsmg·L-1 123456783234013704013573484014313790.10.120.120.130.10.130.110.130.124.814.212.49.6812.4811.210.10.361.424.942.621.183.722.142.922.410.30.240.260.140.260.160.340.220.24 : 0.4mg/L,。3 结论。,COD,、、、、。。COD,。COD,。:[1] ,,,.A2/O[J].,2008,30(18):140-141.[2] .//[J].,2006,22(11):93-96.[3] ,.A—A—O[J].,2008,(3):39-41.[4] ,,,.//[J].,2007,23(24):55-58.[5] ,,,.[J].,2001,22(4):86-90.:(1985- ), , , , 。:(021)65980354 13764094837E-mail:lereef2007@126.com:2009-11-30(上接第7页)[2] vanPraaghM,HeerenklageJ,SmidtE,etal.Potentiale-missionsfromtwomechanically-biologicallypretreated(MBT)wastes[J].WasteManage,2008,29(2):1-10.[3] HeermannC.Usingmechanical-biologicaltreatmentforMSWinEurope[J].BioCycle,2003,44(10):58-62.[4] ,,.[J].,2005,(2):30-36.[5] ,,.[J].:,2005,31(2):125-130.[6] ,,,.[J].:,2007,35(4):507-510.[7] ,.[J].,2008,31(2):104-107.[8] ,,,.[J].,2007,23(2):46-149.[9] ,,,.[J].,2007,35(9):4-6.:(1983- ), , , , 。E-mail:lxd6718@163.com::400045B:2009-10-28·11·李泽峰,等:复合型生化反应器处理焦化废水的中试研究第26卷 第5期

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