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当前位置:首页 > 商业/管理/HR > 质量控制/管理 > 处理低碳源污水的倒置A2O工艺强化脱氮技术研究张智
A2/O张 智1,2, 陈杰云1,2, 李 勇3, 周 娇1,2, 陈永红3(1.重庆大学三峡库区生态环境教育部重点实验室,重庆400045;2.重庆大学城市建设与环境工程学院,重庆400045;3.重庆排水有限公司鸡冠石污水处理厂,重庆400063) : 针对重庆鸡冠石污水处理厂的倒置A2/O工艺在低碳源情况下脱氮效果不佳的问题进行了生产性试验研究。在采取了投加垃圾渗滤液(投配率为0.1%)、缩短初沉池的水力停留时间为原来的1/3和控制好氧第3段的DO为0.5mg/L等措施后,可补充碳源15%以上,系统中活性污泥性状良好,脱氮效果得到大幅提高。出水NH3-N为2mg/L,对NH3-N的去除率为90%;出水TN为17mg/L,对TN的去除率为54%,实现了出水达标排放。 : 倒置A2/O工艺; 低碳源; 垃圾渗滤液; 初沉池; 脱氮:X703 :A :1000-4602(2009)13-0007-04NitrogenRemovalfromLow-carbonWastewaterbyReversedA2/OProcessZHANGZhi1,2, CHENJie-yun1,2, LIYong3, ZHOUJiao1,2, CHENYong-hong3(1.KeyLaboratoryofThreeReservoirRegion'sEco-EnvironmentMinistryofEducation,ChongqingUniversity,Chongqing400045,China;2.CollegeofUrbanConstructionandEnvironmentalEngineering,ChongqingUniversity,Chongqing400045,China;3.JiguanshiWWTP,ChongqingDrainageCo.Ltd.,Chongqing400063,China) Abstract: ToaidtheoperationandmaintenanceofWWTP,afullscaleexperimentalstudyonni-trogenremovalfromlow-carbonwastewaterbythereversedA2/OprocesswasconductedinChongqingJiguanshiWWTP.Whentheproposedmeasures,suchasusing0.1%(volumeofwastewater)landfillleachate,shorteningHRTby2/3intheprimarysettlingtankandcontrollingDOat0.5mg/Linthethirdsectionofaerobiczoneareapplied,15%ofthecarbonsourcecanbecomplemented,thefavorableprop-ertyofactivatedsludgeisachieved,andthenitrogenremovaleffectissignificantlyimproved.Theefflu-entNH3-Nis2mg/Landtheremovalrateis90%.TheeffluentTNis17mg/Landtheremovalrateis54%.Theup-to-standarddischargeoftheeffluentisachieved. Keywords: reversedA2/Oprocess; low-carbonsource; landfillleachate; primarysettlingtank; nitrogenremoval ,,[1]。A2/O、、、、[2],。,COD200mg/L,[3],。。1 鸡冠石污水处理厂基本情况,、,12,,,·7·第25卷 第13期2009年7月 中国给水排水CHINAWATERWASTEWATER Vol.25No.13Jul.2009261km2,169。5.5hm2,A2/O(1),,3。:60×104m3/d,135×104m3/d;80×104m3/d,165×104m3/d。200748×104m3/d。1 Fig.1 Flowchartofwastewatertreatmentprocess、1,,,。BOD5/TN4.0,BOD5/TN2.5,,,。1 、Tab.1 WastewaterqualityofinfluentandeffluentofJiguanshiWWTPmg·L-1 CODBOD5SSTPNH3-NTN36018025053545660380120012.542.2754035451.211.5182401003205.426.243 : GB18918—2002B。2 强化脱氮措施2.1 2007,,400t,0.1%()。,。2.2 ① HRT200612,38×104m3/d,32,62,HRT1.69h0.56h;20075,3,。② 3(),()。,,,DO0.5mg/L。3 结果与分析3.1 ,,0.4%,。,,、。0.1%,,。,、、,,、、、,,;ab,。,0.1%,。3.2 ,[4]。,COD5000~8000mg/L,400~1000mg/L。COD/TN7~15,,,。200611—12、COD,6COD35%,4HRT0.56h,COD20%,COD15%,。,·8·第25卷 第13期 中国给水排水 。2,,()、、。3.3 NH3-N,2007、,90%,,2mg/L,,。,,,,。,,,,,,。,,,COD,;,MLSS4500mg/L,,,,。3.4 TNTN2。2 TNFig.2 TNremovalinsystem2,20071,TN17mg/L,54%(65%),(200635%)19%。1TN20.3mg/L,:,;11℃,15℃、,[5、6]。:①,15%,;②,,;③3DO0.5mg/L,,;④,,。4500mg/L,DO2mg/L,[7],1~3mg/L,。4 结论① 0.1%,,。② ,15%,。③ 3DO,NH3-N90%,TN54%,。:[1] Pochanak,KellerJ.Studyoffactorsaffectingsimultane-ousnitrificationanddenitrification(SND)[J].WaterSciTechnol,1999,36(6):61-68.[2] StrousM,VanGervenE,ZhengPing,etal.Ammoniumremovalfromconcentratedwastestreamswiththeanaero-bicammoniumoxidation(anammox)processindifferentreactorconfigerations[J].WaterRes,1997,31(5):1955-1962.[3] ,,.CODC/N[J].,2005,21(12):19-23.(下转第12页)·9·张 智,等:处理低碳源污水的倒置A2/O工艺强化脱氮技术研究第25卷 第13期22.60mg/L。10dBAFCODBAF,、,,。,,,。,、,,。2 CODFig.2 RemovaleffectofCODinBAFs2.3 TN、TP。,,,TN。,BAF,,TP,。2.4 ,2BAF、30cm。,。、,、,,、、。、,。3 结论① ,。② ,、COD。,。,0.64mg/L,BAF10.72%。③ ,,,,,,。:[1] ,,,.2[J].,2005,6(12):56-60.[2] ,,,.[J].,2005,5(4):33-35.:(1983- ), , , , 。:13810214322E-mail:jglijun@bjut.edu.cn:2009-03-11(上接第9页)[4] ,,,.A2/O[J].,2008,24(11):27-29.[5] MauretM,PaulE,Peutch-CostesE,etal.Applicationofexperimentalresearchmethodologytothestudyofnitrifi-cationinmixedculture[J].WaterSciTechnol,1996,34(1-2):245-252.[6] .pH[J].,1994,14(4):309-313.[7] RobertsonLA,VanNielEWJ.Simultaneousnitrifica-tionanddenitrificationaerobicchemostatculturesofthio-sphaerapantotropha[J].ApplEnvironMicrobiol,1998,54(1):2812-2818.:(1960- ), , , , , 、。E-mail:zhangzhicq@126.com:2009-01-18·12·第25卷 第13期 中国给水排水
本文标题:处理低碳源污水的倒置A2O工艺强化脱氮技术研究张智
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