二氧化氯在污废水处理中的应用

5155No．5SerialNo．155201110CHINAMUNICIPALENGINEERINGOct．2011DOI10．3969/j．issn．1004－4655．2011．05．010200092、、、、、。。X703B1004－4655201105－0026－022011－08－23。。、。11．1、ClO2107．9g/L。ClO210%45～50℃。ClO2ClO－2ClO－3。ClO210g/L。ClO2、ClO22%～5%。ClO2ClO2、、。ClO2、、。ClO2Fe2+、Mn2+、CN－、、。1．2。ClO2。ClO2。、、、、。1．3、、、。ClO2、。。1。2。3PLC、。4ClO26220115。5、、、。22．1。2×109。10～100/mL1000～100000/mL。。。。4、、、＞＞＞＞＞＞。ClO2。ClO2。ClO2pHClO2。13．8m3/d20kg/h3ClO2。2900m3130min10mg/L。100000/LClO2900/LA。2．2、、。。。1．62×105/mL、ClO230mg/L、pH=7．660min100%94000/L、ClO25mg/L、pH=7．660min≤500/LClO2CODcrBOD5。2．3、pH。pH7．7～8．13～4pH8．7～9．0。ClO2。ClO2、、ClO2。2．4、。、、、、。。。ClO2ClO2、ClO2ClO2、MIC。ClO2、、、。2．5、、。、、。ClO2。ClO2ClO2、ClO230mg/L82．3%pH=796．9%pH=3。3372201152、pHSS/mg·L－1CODcr/mg·L－1BOD5/mg·L－1NH3—N/mg·L－1TN/mg·L－1TP/mg·L－1/·L－17．5222626183．213．47916．72．331600007．681523．66．23．1239．330．662054778km2。65006129。1129．78kW0．20kW·h/m30．27/m3。61863“”100%30%20%20%13%。2。1．A2/CD．2007．2．BAFJ．20098223－225．3WEFPress．AmericanSocietyofCivilEngineersEnvironmentalandWaterResourcesInstitute．DesignofmunicipalwastewatertreatmentPlantsM．4thed．NewYorkMcGraw-Hill1998櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅277-280．272．6。、。ClO2ClO2。COD342mg/LClO210～15mg/L、30min。—ClO23－ClO2。31。10．10～0．25mg/L。0．010～0．020mm/a0．076mm/a。0．10～0．35mg/L0．040～0．060mm/a0．076mm/a。ClO2。1/mg·L－1/mm·a－110．150．19670．05820．019320．250．18690．05090．016930．310．19140．04930．019740．320．19910．04600．012150．330．18150．04560．012960．360．19370．05850．019370．410．19350．05910．016980．440．18880．05860．01714ClO2ClO2。ClO2、、ClO2。。。33ABSTRACTSKeywordsspecial-shapedarchbridgedynamiccharacteristicsnaturalfrequencyOnElasticCablesRepairing＆ReplacingConstructionTechnologyofCable-stayedBridgeZHAOXiao-maCCCCWuhanHarbourEngineeringDesign＆ResearchCo．Ltd．Wuhan430040ChinaAbstractTakingBaishazhouYangziRiverBridgeinWuhanforexampleitisatwinpylons＆twin-cableplanescable-stayedbridgewithfivespansbelongingtolongitudinalfloatingsystem．Theelasticcablesshallberepairedandreplacedaftertheserviceperiodof10a．Theremovingtechnologicalprocessandproceduresofsteelboxgirderoldelasticcablesareintroducedinthispaper．Ifthecableforceismonitoredtoarriveat50kNbeforecuttingthefeasibilityofrelevantremovingplanshouldbearguedagaintokeeptheconstructionsafety．Moreovertheassemblingtechnologicalprocessandconstructionproceduresofthenewcablesareintroducedandeveryindexcanmeetwiththedemandsofthedesignthroughmonitoring．Keywordscable-stayedbridgeelasticcablesreplacementconstructiontechnologyApplicationofChlorineDioxideinSewage＆WastewaterTreatmentsPENGHongShanghaiMunicipalEngineeringDesignInstituteGroupCo．Ltd．Shanghai200092ChinaAbstractThefeaturesperformanceofchlorinedioxideanditsgeneratorareintroducedinthispaper．Besidestheapplicationcasesandtreatmenteffectsofchlorinedioxideinthevarioussewage＆wastewatertreatmentfieldsaredescribedindetailincludingmunicipalsewagehospitalsewageindustrialcirculatingwateroil-fieldfloodingandchemicalwastewateretc．Finallytheresearchresultsofequipmentcorrosionbyaddingchlorinedioxidearegivenandthecorrosionrateofinjectionsystemisprovedofnoinfluencefromaddingchlorinedioxide．KeywordswastewatertreatmentplantchlorinedioxidechlorinedioxidegeneratoroxidationsterilizationAStudyofDE-typeOxidationDitchonItsOperationEffect＆TreatmentTechnologyofAlternatedModesLVYing-junShenzhenMunicipalDesign＆ResearchInstituteCo．Ltd．Shenzhen518029China88