321城市污水生物除磷脱氮工艺中的矛盾关系及对策华光辉

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ÓÓ华光辉张波目前,城市污水处理厂的处理对象包括CODBOD5SS和氮磷等营养物质就氮磷脱除而言,一般需涉及硝化反硝化微生物释磷和吸磷等过程由于各过程的要求不同,在同一污水处理工艺系统中就不可避免地产生了各过程间的矛盾关系针对泥龄问题碳源问题硝酸盐问题系统的硝化和反硝化容量问题释磷吸磷的容量问题进行了探讨污水处理生物除磷脱氮工艺系统矛盾关系(),,(COD)(SS),,CODSS(NH3-N),,,,,CODBOD5SS,,COD,,,,;,,,,1,,,30d;,5d,,Rensink(1985)[1]1,1/d3017513416/%40508715911310d,,,,;,,,,,,,,,(1),,;,Vol126No11220001,,,,,A2/O(2),,,,,,1A1/O-A2/O2A2/OA2/O,,A2/O:¹,MLSS;º,;»,,,2,,(VFA),COD,VFA,mg/L,,COD,,,,,,,,,,,,,,A2/O(3),[2~4],,,,,,[2~4]3A2/O3A2/O,,,VFA,,A2/O,,UCTJHBEASC,UCT(4),,,,2Vol126No11220004UCT,,,UCT,A2/O(4)1(O)(A2),2A2A1,A1,A2,,,A22A1,,,A2/O4,,;,,(),1~2h3~4h,2~3h,5~6hA2/O,A2/O,,;,,,,,,,,,,,,,,,A2/O,,,,,,5,,,,115~215h2~3h,A2/O,,,,,,,,HRT[5~6]:,,,,HRT,Vol126No112200032~3h,3~4h6,(GB8978-1996)[7],,,,,,,,参考文献1RensinkJH,DonkerHJGWandSimonsSJ.PhosphorusRemovalatLowSludgeLoadings.WatSciTech,1985,17(11~12):177~1862.:[].:,19963,./.,1997,12(2):29~314,.A2/O.,1999,17(2):7~105,..,1997,23(10):18~206MatsuoY.EffectoftheAnaerobicSRTonEnhancedBiologicalPhosphorusRemoval.WatSciTech,1994,30(6):193~2027,.)(GB8978-1996).:,1997P:266033605E-mail:brilliance_qd@sina.com:2000O4O10李晓涓太原市水环境总体规划是世行贷款项目山西省万家寨引黄工程项目的子项目根据世行贷款协定的要求,中方通过国际招标方式选择了美国CDM国际咨询公司,与中方专家共同完成此项目着重介绍太原市水环境总体规划的主要内容和编制方法,并比较了国内和国际上现行规划的不同之处水环境总体规划编制内容编制方法太原市1,,CampDresser&MckeeInternationalInc.(CDM)CDM2(),3:4Vol126No1122000WATER&WASTEWATERENGINEERINGVol126No112November2000CONTENTSContradictionandMeasuresinBiologicalNandPRemovalofMunicipalWastewaterTreatmentHuaGuanghuietal(1),,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,Abstract:ThetreatmentparametersinmunicipalwastewatertreatmentplantincludeCOD,BOD5,SS,NandPetc.BiologicalN-Premovalinvolvesinprocessessuchasnitrification,denitrification,phosphorusreleaseanduptake.Theparadoxicalrelationshipsareinevitablyproducedinthesametreatmentsystembecauseofthedifferentrequirementsofdifferenttreatmentprocesses.Thispaperanalyzedtheproblemsofsludgeage,carbonsources,nitrate,capacityofnitrificationanddenitrification,capacityofphosphorusreleaseanduptake.Suchanalysisisconducivetoimprovetheunderstandingofparadoxicalrelationshipsinbiologicalphosphorusandnitrogenremovalprocess.BriefontheGeneralUrbanWaterEnvironmentPlanningLiXiaojuan(4),,,,,,,,,,,,,,,,,,,,Abstract:TheGeneralUrbanWaterEnvironmentPlanningofTaiyuancityisoneofsub-itemsfortheWanjiazhaiYellowRiverWaterDivertingProjectfundedbytheWorldBankloan.ThewaterenvironmentplanningwillbeaccomplishedbyCDMInternationalInc,jointlywithChinesespecialists.InthispaperthecontentsandthemethodtocompiletheplanningarepresentedandthediscriminationsbetweentheinternationalandChineseplanningdealingsarecompared.ExperimentonBiologicalFeandMnRemovalfromUndergroundWaterXueGangetal(8),,,,,,,,,,,,,Abstract:Aprocessofsimpleaeration+primarybiologicaltreatmentbasedontheMnremovalcapacityofferro-bacteriahasbeenproposed.ItcanremovebothFeandMnsimultaneouslyfromundergroundwaterwithhighMnandFecontentandcanenhancetheformationofthestableMn-removalabilityofthefiltrationlayer.Theinfluencefactorstotheconcernedprocessarediscussed.Theexperimentresultshasshownthatthisisaneconomicalfiltratingunitopera-tionwithhighaerationefficiencytoremoveFeandMn.StudyontheEffectofSulfateReductiononAnaerobicDigestionJiBinhongetal(12),,,,,,,,,,,,,,,Abstract:Theartificestoovercometheeffectofsulfatereductioninanaerobicdigestionwereexaminedinabatchanaerobicreactortreatingorganicwastewaterwithhighsulfatecontent.TheinfluencesofsomefactorssuchastheratioofCOD/SO42-andSO42-contentinrawwastewater,theFe(Ò)dosageandtheadaptationofsludgeculturewereobserved.Finallyitwasconcludedthattheeffectofsulfatereductioncouldbeovercameunderthreeways:¹anaerobicsludgeadaptationtomethanebacteriadominated,ºCOD/SO42-ratiowillbegreaterthan2B1and»appropriateconcentrationofSO42-ininflowwastewater(intheauthors.experienceitwaslowerthan4000mg/L).CoagulationResearchofRawWaterAbstractedfromXijiangRiverHuangShaobinetal(16),,,,,,,,,,,,,Abstract:CoagulationsofdifferentcoagulantsareresearchedfortherawwaterabstractedfromXijiangRiverinGuangdongProvinceattemptingtooptimizetheapplicationofcoagulantagentsandtoenhancethecoagulationprocess,soastoreducetheexpensesofcoagulationoperationandtoimprovethequalityoftheoutputwater.PilotPlantResearchonAdvancedTreatmentofPollutedRawWaterYeHuietal(18),,,,,,,,,,,,,,,Abstract:Apilotplantresearchofozone-activatedcarbonprocess(O3-BAC)wasconductedforadvancedtreatmentofpollutedrawwaterofHuangpuRiver.Theresultsshowthattheremovalabilityfororganicsubstancesofthisprocesscouldconserveconsistentlyforalongtime,themeanremovalratiosof27.5%,34.7%,and57%wereobtainedforCODMn,TOCandUV254respectively.AlsothelevelsofMncontentandcoloritydecreasedandthereactionofAmestestbecomefrompositivetonegative.Thequalityandsafetyofthedrinkingwaterwereimprovedevidentlythroughtheadvancedtreatmentofozone-activatedcarbonprocess.BsiefontheComprehensiveSewerageDesignPlanoftheUpperSectionofChaoyangxiRiverinNanningCity,GuangxiProvinceHuangZiqinetal(23),,,,,,,,,,,,,,,,,,,Abstract:OnthebasisofplanningcomparisononthecomprehensiveseweragedesignoftheuppersectionofChaoyangxiRiverinNanningCity,GuangxiProvin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