城市污水厂生化污泥成分分析及脱水效果分析

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2014-12-0312111.3118142.226002,、,。:pH7~7.53,86.96%;;190℃,24.1%。:;;;;;X703A1673-9655201504-0081-04、。5.5×106~6.0×106t1。、、、。2。、34。。11.1201310—20141pH105℃、1.0mm4℃。1.21pHpH5。2、、、《》6———-NaOH———。3Pb、Cr、Cd、Cu、Ni、Zn《》7。1.31。140mL。。22.1pH—18—,34(4)CN53-1205/XISSN1673-9655DOI:10.13623/j.cnki.hkdk.2015.04.018。pH7.0~7.537.20。pH6.30~6.918。186.96%《CJ/T249-2007》≤60%。1pHpH/%Ⅰ7.5382.1Ⅱ7.088.78Ⅲ7.0890.02.22。349.6g/kg20069。、10。54.4g/kg、592.3g/kg。。《GB/T23486-2009》11≥3%≥25%。2.33Zn1028.80mg/kgCr、Cu、Ni、Pb576.82mg/kg、165.13mg/kg、82.26mg/kg30.46mg/kgCd0.04mg/kgCd。2006Cr912。Cr。《》。。2g/kgⅠ330.315.625.611.652.8637.1Ⅱ351.418.126.710.955.7549.4Ⅲ367.117.926.89.954.6590.3349.617.226.410.854.4592.3928029.622.25.833mg/kgPbCrCdZnCuNiⅠ27.62585.8-1006.63140.185.83Ⅱ34.65543.260.081058.86158.8778.26Ⅲ29.11601.40.041020.92196.4382.6930.46576.820.041028.80165.1382.26911225918.22089499167pH<6.530060052000800100pH≥6.5100010002040001500200—28—<40%。3———190℃30%190℃190℃。23190℃。10kg361.5%、39.4%35.2%。60kg190℃24.1%190℃44.7%。30%10kg。10kg61.5%20kg50.5%60kg40%。、。24.1%13-16。31、、、《》。2。60kg24.1%。3、、、。4。1.J.2008358110-112.2.J.200113261-64.3GB/T23484-2009S.4.J.20052112148-149.5.M.2002.6.M.1988.7.M.1986.8.J.2002216587-592.9.J.20092513120-121.10.J.200323112464-2474.11GB/T23486-2009S.12.J.20092513122-124.13.J.2013134116-118.14.J.201326443-46.15.J.201210215.16.J.201020547-49.—38—-feng11.ZhejiangHailiangSolidWasteManagementCorporationZhujiZhejiang311814ChinaAbstractVariousphysicochemicalpropertyindexesnutritionalmaterialsandheavymetalsweremeasuredbytak-ingthebiochemicalsludgefromthefirstsewagetreatmentplantinZhujicityastheresearchobject.Thedehydra-tionrateofbiochemicalsludgewithheatingtreatmentunderdifferentconditionswasresearched.Theresultsindica-tedthatallsludgesampleswerealkalescencywithapHvaluerangingfrom7to7.53.Theaveragemoisturecontentwas86.96%.Besidesboththetotalnutrientandheavymetalcouldfitthequalityofsludgeusedingardensorparks.Thebestdewateringeffectwasthebiochemicalsludgetreatedinaerobicand190centigradeheatingcondi-tion.Itreducedthemoisturecontentto24.1%whichwasthelowestexaminedinalltests.Keywordsbiochemicalsludgenutrientheavymetaldewateringthesludge檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿sludgetreatmenttest75ResearchonCombinedTreatmentProcess“IBR&VFCW”intheSmallTownSewageTreatmentCAOFei-huaShenzhenBiyuanEnvironmentalProtectionTechnologyLimitedCompanyShenzhenGuangdong518028ChinaAbstractAcombinedtechnologyofIntegrationofBiochemicalReactorIBRandVerticalFlowConstructedWet-landVFCWwaspresentedandappliedtotheexperimentalstudyinthesmalltowndomesticsewagetreatment.TheIBRcombinesthebiochemicalreactionandprecipitationtankinonepool.ItcanremovetheorganicparticleandsomedissolvedorganicmattertopreventVFCWfromjamming.VFCWhasauniquepackingstructurewaterdistributionmodelandahigherhydraulicload.Thenitgivesafullprocessingcapacitytodegradethepollutantsinthewetlandsystem.TheexperimentshowedthattheIBR&VFCWtechnologywasexcellentinthetreatmentofdo-mesticsewageinthesmalltown.WhentheconcentrationofCODNH3-NandTPininfluentwere177.3mg/L40.3mg/Land4.8mg/Lrespectivelythecorrespondingremovalrateswere77.8%89.6%and90.2%.ThewaterqualityofeffluentofIBR&VFCWisbetterthanthatoftraditionalbio-treatmenttechnology.Keywordsintegrationofbiochemicalreactorverticalflowconstructedwetlanddomesticsewagewastewatertreatmentsmalltown—48—

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