孙永利1, 许光明2, 游 佳1, 郑兴灿1, 陈 轶1(1.国家城市给水排水工程技术研究中心,天津300074;2.常州市排水管理处,江苏常州213017) : 分别以乙酸钠、葡萄糖和白砂糖作为外加碳源,考察了其对生物处理系统反硝化脱氮效果的强化作用。结果表明,在一定条件下,三种物质对系统的反硝化能力均具有明显的强化效果,但其有效作用时间和反硝化速率有所不同,以乙酸钠为碳源时的反硝化速率约为以葡萄糖和白砂糖为碳源时的2倍,而在同等COD投加当量下的有效作用时间约为葡萄糖和白砂糖的一半。 : 污水处理厂; 外加碳源; 强化反硝化:X703 :C :1000-4602(2010)19-0084-03SelectionofExternalCarbonSourceforMunicipalWastewaterTreatmentPlantSUNYong-li1, XUGuang-ming2, YOUJia1, ZHENGXing-can1, CHENYi1(1.NationalEngineeringResearchCenterforUrbanWaterandWastewater,Tianjin300074,China;2.ChangzhouDrainageManagementOffice,Changzhou213017,China) Abstract: Theeffectofbiologicalnitrogenremovalenhancedbyexternalcarbonsource,suchassodiumacetate,glucoseandwhitegranulatedsugarwasinvestigated.Theresultsindicatethatallthethreekindsofcarbonsourceshaveobviousenhancingeffectonthebiologicalnitrogenremovalcapacity,butwithdifferentreactiontimeandreactionvelocityingivenconditions.Thedenitrificationratewithso-diumacetateascarbonsourceisabouttwicethatwithglucoseandwhitegranulatedsugar,withonlyhalfofreactiontimewithequivalentCODdosage. Keywords: wastewatertreatmentplant; externalcarbonsource; enhanceddenitrification :(2006BAC19B05) ,2008785,BOD5/TKN4515,3337,。,,、,、,,,。1 试验材料与方法1.1 ,,,。:①,,;②·84·第26卷 第19期2010年10月 中国给水排水CHINAWATERWASTEWATER Vol.26No.19Oct.2010,、,;③,;④,,、,;⑤、,,,、、,。,、,。、()()。1.2 A2/O。,,BOD5/TKN3,,BOD5/TKN。。,,DO0.5mg/L。1.3 ,10L。,,,,,。26℃、MLSS3.033g/L、MLVSS2.123g/L。2 试验结果与讨论2.1 6L,0.3g(50mg/L,COD30mg/L),NO-3-N,1。1,,;,,。,1.36mgNO-3-N/(gVSS·h),5.15mgNO-3-N/(gVSS·h),4;,,,2.16mgNO-3-N/(gVSS·h),。1 NO-3-NFig.1 VariationofNO-3-Nconcentrationwhenaddingsodiumacetateasexternalcarbonsource2.2 6L,0.2g(33mg/L,COD30mg/L),,NO-3-N,2。2 NO-3-NFig.2 VariationofNO-3-Nconcentrationwhenaddingglucoseasexternalcarbonsource2,,,2.72mg-NO-3-N/(gVSS·h),,[1.66mgNO-3-N/(gVSS·h)]。,50min,。2.3 6L,0.2g(33mg/L,·85·孙永利,等:城镇污水处理厂外加商业碳源的选择第26卷 第19期COD30mg/L),,NO-3-N,3。3 NO-3-NFig.3 VariationofNO-3-Nconcentrationwhenaddingwhitegranulatedsugarasexternalcarbonsource3,,,2.451.48mgNO-3-N/(gVSS·h),;40min,。2.4 ,,,1。1:①,()NO-3-NCODNO-3-N,,,;②COD,,,,,;③,CODNO-3-N;COD,NO-3-N;④,,-。1 Tab.1 Denitrificationenhancedbythreeexternalcarbonsources 12121212/(mg·L-1)505033333333COD/(mg·L-1)303030303030/(mgNO-3-N·g-1VSS·h-1)1.361.535.155.552.722.582.452.82/min202050505040/(mgNO-3-N·g-1VSS·h-1)2.162.771.661.981.481.98NO-3-N/(mg·mg-1)0.050.030.070.050.050.05CODNO-3-N/(mg·mg-1)0.080.040.080.050.060.053 结论,、,;2,;,、,1mg/L,0.05mg/LNO-3-N。:[1] ConstantinH,FlckM.InfluenceofC-sourcesonthedenitrificationrateofahigh-nitrateconcentratedindustrialwastewater[J].WaterRes,1997,31(3):583-589.[2] ,,,.CBAF[J].,2007,23(23):63-66.[3] ,,.[J].,2007,27(12):10-14.E-mail:tjsunyongli@163.com:2010-03-31·86·第26卷 第19期 中国给水排水