短程硝化处理高浓度氨氮废水的研究陈福坤

382Vol.38No.220184JOUＲNALOFHECHIUNIVEＲSITYApr.201812221.2.545003SBＲUASB300～550mg·L－1DO=0.2～0.5mg·L－1、T=28～31℃、pH=7.0～8.5292385mg·L－120.0mgL·h－119.0mgL·h－1pHDO30AOBAOB。。SBＲX703.1A1672－9021201802－0009－051981－。2015J010501。20901。25～35℃、0.20～0.75mg·L－1pH7.0～8.5。2、、3－7。UASB。11.1SBＲ1PVCΦ160mm152mm800mm14.5L12L。0.2～0.5mg·L－128～31℃。[e-mail]1—2—3—4—5—6—7—8—1SBＲ1.2UASB1C/N。SV3020%。1COD/mg·L－1NH+4－N/mg·L－1TN/mg·L－1TP/mg·L－1pH300～500350～500350～55040～607.5～8.5412425460477.81.3DOJPB－607ApHPHBJ－260pHCOD。22.112h0.1h10h1.4h0.5h1∶34L2L2L0.2～0.5mg·L－128～31℃。ρNO2－－N2。5ρNO2－－N7～1030mg·L－1742.1mg·L·h－1AOB。AOBUASBAOBDOAOBNOBAOBDONOB8DO＜0.5mg·L－1AOBBernet9DO＜1.0mg·L－1AOBNOBDONOBAOBFANOB0.1～1.0mg·L－1AOB10～150mg·L－1NOBFA10－12AOBNOB。01MLSSNOBAOB。2ρNO2－－N2.2。18mg·L·h－13。300～500mg·L－111～272720.46mg·L·h－119.04mg·L·h－10.24kgNO2—NkgMLSSd－1。NOB13NOBAOBNOBNOB14。SV3020%40%2385mg·L－1AOB。32.320mg·L·h－136～45、DOpH90～95%DO0.5mg·L－17min1.0mg·L－112min1.5mg·L－11h6.0mg·[e-mail]11。4pHDOpHDOAOBNOB0DO。pH15CO2pHpH“”16。DOpH。abpHDO4422.4453010～18℃30DO0.2～0.5mg·L－125～28℃DO0.2～0.5mg·L－1819mg·L·h－1AOB30AOB。31SBＲDO0.2～0.5mg·L－1、8～31℃、pH7.0～8.5300～550mg·L－1292385mg·L－120.0mg·L·h－119.0mg·L·h－1。2pHDODOpH。330AOBAOB。211W.Ｒ.L.vanderStar.J.2007231815－19．2.J.2007394561－565．3.－J.2016294587－593．4.J.20134452136－2143．5.J.2011272257－60．6.J.20153541082－1087．7.－D.2013．8.SBＲJ.20166762525－2532．9BEＲNETNDANGCONGPDELGENESJPetal.NitrificationatlowoxygenconcentrationinbiofilmreactorJ.JournalofEnvironmentalEn-gineering－ASCE20011273266－271．10PAＲKSBAEWＲITTMANNBE.Operationalboundariesfornitriteaccumulationinnitrificationbasedonminimum/maximumsubstratecon-centrationsthatincludeeffectsofoxygenlimitationpHandfreeammoniaandfreenitrousacidinhibitionJ.EnvironmentalScience＆Tech-nology2010441335－342．11.SBＲJ.20102661199－1204．12.FAFNAJ.2009303809－814．13.SBＲJ.2004274111－113．14.J.2007233102－105．15.J.20112721105－108．16.pHJ.201137071067－1072．StudyonTreatmentofHighAmmoniaNitrogenWastewaterbyShort－cutNitrificationCHENFukun12DENGHaitao1SHENSha11.GuangxiChunhuiEnvironmentalEngineeringCo.Ltd2.GuangxiEco－engineeringVocationalAndTechnicalCollegeLiuzhouGuangxi545003ChinaAbstractTheshort－cutnitrificationprocessofUASBeffluentρNH+4－N=300～550mg·L－1wascarriedoutbySBＲprocess.After29cyclesofoperationtheresultsshowthatthesludgeconcentrationreached2385mg·L－1therateofammoniaoxidationreached20.0mg·L·h－1andtherateofnitriteformationreaches19.0mg·L·h－1undertheconditionofDO=0.2～0.5mg·L－1T=28～31℃pH=7～8.5.Thesys-temwassuccessfullystartedandstableoperation.Whentheshort－cutnitrificationendpointisreachedthein-creaseofpHandtheabruptincreaseoftheDOareoverlappedintimewhichcouldbeusedastheindicatorforthedeterminationofshort－cutnitrification.Short－cutnitrificationsludgeidlefor30daysAOBwillnotbealargenumberofdeathstheenvironmentissuitableAOBcanquicklyrestoretheactivity.Thestudyprovidesscientificba-sisfortheengineeringapplicationofshortcutnitrification．KeywordsSBＲshort－cutnitrificationammonia－oxidizingbacterianitrite－oxidizingbacteriarateofnitriteformation2018－02－0531