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1、INDUSTRIALWATER＆WASTEWATER工业用水与废水Vol．43No．2Apr.，2012高浓度氨氮对活性污泥性能的影响王庆1，2111，丁原红，任洪强，韩承辉（1.南京大学环境学院污染控制与资源化研究国家重点实验室，南京210093；2.南京大学宜兴环保研究院，江苏宜兴214200）摘要：采用2个SBR反应器RUN1和RUN2在氨氮质量浓度分别为50、350mg／L的条件下驯化污泥，考察氨氮浓度对污泥活性的影响；并在氨氮质量浓度分别为59、232、368、604和1152mg／L的条件下对2个反应器中的驯化污泥进行氨氮适应
2、性试验。结果表明：在较高的氨氮浓度条件下，有机物降解菌对CODCr降解率下降约47％，硝化菌对氨氮的去除率下降约55％，脱氢酶活性下降约56．6％，显示出高浓度氨氮对有机物降解菌和硝化菌的活性都具有一定的抑制作用；当进水氨氮质量浓度从59mg／L升至1152mg／L时，RUN1和RUN2中污泥对CODCr的去除率分别由89．2％和91．9％下降为40．5％和67．6％，对氨氮的去除率则分别由99．8％和99．9％下降为17．1％和22．2％，说明经高浓度氨氮驯化的污泥，其有机物降解菌和硝化菌都显示出对高浓度氨氮更好的适应性。关键词：高浓度
3、氨氮；活性污泥；活性；抑制；适应性中图分类号：X703.1文献标识码：A文章编号：%1009－2455（2012）02－0013－04Influenceofhighconcentrationammonianitrogenonpropertyofactivatedsludge1，2111WANGQing，DINGYuan-hong，RENHong-qiang，HANCheng-hui（1.StateKeyLaboratoryofPollutionControlandResourceReuse,SchoolofEnvironment,Nanj
4、ingUniversity,Nanjing210093,China;2.YixingInstituteofEnvironmentalProtection,NanjingUniversity,Yixing214200,China）Abstract：TwoSBRs:RUN1andRUN2wereusedtoacclimatesludgewithammonianitrogenlevelsof50and350mg／Lrespectively.Theinfluenceofammoninanitrogenconcentrationonactivity
5、ofsludgewasinvestigated;andseriesofparallelexperimentsontheadaptabilityoftheacclimatedsludgetotheammonianitrogenwithmassconcentrationof59,232,368,604and1152mg／Lrespectivelywerecarriedout.Theresultsshowedthat,underhighammonianitrogenconcentrationcondition,theremovalratesof
6、CODCrandNH3-Nbyorganicpollutantdegradatingbacteriaandnitrifyingbacteriadecreasedabout47%and55%respectively,andtheDHA(dehydrogenaseactivity)decreasedabout56.6%,whichdisplayedindicatedtheinhibitioneffectofhighammonianitrogenconcentrationontheactivitiesoforganicpollutantdegr
7、adatingbacteriaandnitrifyingbacteria.Whentheammonianitrogenconcentrationincreasedfrom59mg／Lto1152mg／L,theremovalratesofCODCrbytheacclimatedsludgeinRUN1andRUN2decreasedfrom89.2%and91.9%to40.5%and67.6%respectively,andtheremovalratesofNH3-Ndecreasedfrom99.8%and99.9%to17.1%an
8、d22.2%respectively.Itcouldbeseenthat,theorganicpollutantdegradatingbacteriaandnitrifyingbacteria
