超滤膜污堵原因分析及防治措施

Vol．5No．5Sep．2015JournalofEnvironmentalEngineeringTechnology5520159．J．201555442-446．MAZJSONGYHZHANGZMetal．AnalysisonultrafiltrationmembranefoulingandthepreventionmeasuresJ．JournalofEnvironmentalEngineeringTechnology201555442-446．2015－04－01KJ204042015－193－CQD－KJ－X1971—[e-mail]12321．8314002．4000603．400074、、CODCr。。X703.11674－991X201505－0442－05doi10.3969j．issn．1674-991X．2015.05.070AnalysisonUltrafiltrationMembraneFoulingandthePreventionMeasuresMAZhi-jing1SONGYing-hao2ZHANGZhan-mei3LIUXiu-juan21．ShenhuaGuonengEnergyGroupCompanyLimitedUrumqi831400China2．ChongqingYuandaWaterServiceCompanyLimitedChongqing400060China3．SchoolofＲiver＆OceanEngineeringChongqingJiaotongUniversityChongqing400074ChinaAbstractTheproblemofmembranefoulingofultrafiltrationcausedbythemunicipalmiddlewaterrunningintheboilerfeedwatersystemofonethermalpowerplantofShenhuaGuonengEnergyGroupCo．Ltd．wasstudied．Therunningdatasofultrafiltrationthemunicipalmiddlewaterqualityindexesandthefoulingmatterfromultrafiltrationwerecomprehensivelyanalyzed．Itwasfoundthatthemainreasonforthemembranefoulingofultrafiltrationwastheover-standardofCODCrandNH3-Ninthemiddlewaterfromthewastewatertreatmentplant．Theadjustmentoftherunningconditionscanbeaneffectivemeasuretoreducethemembranefoulingofultrafiltration．Throughtheadjustmentoftheconditionparametersthetrans-membranepressureandthewaterinflowofultrafiltrationmembranecanmeettheoperationrequirementsofthethermalpowerplantindicatingthatthismeasurecaneffectivelyreducethemembranefoulingofultrafiltration．Keywordsmunicipalmiddlewaterultrafiltrationmembranefoulingconditionadjustment、。1-3。2×300MW。→→→→→。8V1072－35－PMC。1。5。0.1MPa40m3h4。、、。。22.15-6、、7。+、UV。1。1Table1ThewaterqualityofreclaimedwateranddesignedinfluentqualityofthesystempH7.187.0～8.5mgL15.63≤10NTU5.70≤5BOD5mgL9.90≤5CODCrmgL55.30≤30mgL0.18≤0.5mgL0.07≤0.2mgL16.50≤5mgL0.73＜1mgL435.40≤350mgL212.30cfumL71.70≤10001CODCr、BOD5、3、、。12CODCr、。126±4℃2CODCr、BOD5、。2.22.2.1105℃。1。1Fig．1TheappearanceofthewatersampleandthefoulingmatterfromtheCEB·344·52.2.24600℃6～8h2。239.29%～41.73%。2Table2TheresultsoflossonignitionaboutthefoulingmatterfromtheCEBgg%10.19910.506839.2920.31000.742841.7330.10470.259440.3640.09060.220841.032.2.323。2Fig．2Theenergyspectrumdiagramofthefoulingmatter3Table3Massratioofelementinthefoulingmatter%%C25.75Mg1.17N2.78Si1.94O44.03Ca12.36P2.19Mn0.41S0.50Fe6.5923C、O70%。CODCr、8-9。Ca、Fe。Ca12.36%CaCO3Ca2+HCO－3CaCO3。Fe6.59%Fe。Fe2+Fe3+Fe3+FeOH310。33.1。。、、、。11。、。12-13。。21·444·52214。60min30min45300.12MPa154。4Table4Theadjustmentschemeofultrafiltration’soperatingconditions℃20～2920～29Lm2·h6060m3h55～6545～65MPa0.090～0.1300.110～0.160MPa0.040～0.0800.040～0.080MPa0.055～0.0650.060～0.065%≥95≥94pH7.0～8.07.0～8.5℃25～3025～30Lm2·h170170m3h200～220200～220MPa≤0.2≤0.2min6030CEB4530MPa≥0.10≥0.12pH12.52.511～11.52.53.29d。3.2.13。65m3h40～55m3h。3Fig．3Variationofultrafiltration’swaterinflow3.2.24。0.11～0.16MPa0.04～0.08MPa0.12MPa。。4Fig．4Variationofultrafiltration’soperatingpressure41。CODCr、CODCr、BOD5、3、、。2·544·5。360min30min45300.1MPa0.12MPa。。1．J．200626183-86.2．J．201434490-92.3KＲUEGEＲＲ．Efficientpre-treatmentultrafiltrationinＲussianpowerplantsJ．Desalination200846218-20.4．J．200120411-13.5．J．200712479-83.6．J．20092521-4.7HOOFSCJMDUYVESTEIJNCPTMVAALPPＲ．Dead-endultrafiltrationofpretreatedanduntreatedWWTPeffluentforre-useinprocesswaterapplicationsJ．Desalination1998118123249-254.8．M．2011.9．J．201241898-100.10．J．2013429141-143.11LIANGHGONGWCHENJetal．CleaningoffouledultrafiltrationUFmembranebyalgaeduringreservoirwatertreatment．J．Desalination2008220123267-272.12．J．2010395101-104.13．J．201039989-91.14．J．200417446-47.15M．201227-32.檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪□2016《》《》。、。、、、、、。《》1620。40240。2－6206338BM。。8100012[e-mail]·644·