氣液混合泵-浮選柱氣浮系統(tǒng)處理含乳化油廢水的研究.pdf

1、沈陽(yáng)建筑大學(xué)碩士學(xué)位論文氣液混合泵浮選柱氣浮系統(tǒng)處理含乳化油廢水的研究姓名：劉忠生申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：市政工程指導(dǎo)教師：張吉庫(kù)201102碩士研究生學(xué)位論文AbstractIIIAbstractGasfloatationprocessisaneffectivemethodofoilywastewatertreatment.thismethodpumpairintotheoilywastewaterindertogeneratemic

2、robubblewhichwillmakesmallparticlesofemulsifiedoilstickedtothebubblethenfloattothesurfacefmingscumstoberemoved.theoilremovingefficiencybygasfloatationmainlydependsonoilletbubblediameterchemicalpropertiesoftheelaioplastsu

3、rface.Basingonthesummaryoftheoilywastewatertreatmenttechnologydevelopmenttheresearchstatusthispaperfoundthatgasflotationisonekeytechnologyofoilywastewatertreatmentinwhichthepressureairdissolvingisthemostwidelyusedgasflot

4、ationbinedwiththelatestdevelopmentofflocculationtheythelatestdeviceinthemarketasetofgasliquidmixingpump—flotationcolumndevicewasdesignedthewholedevicewasanalyzedsystemly.theresearchcontains:testingthepropertiesoftheselfd

5、esigneddevicebreakingtheemulsionwiththeedflocculantdeterminatingthedosagetestingeachfactsofinfluentingflotationdeterminatingtheoperatingparametersoftheexperimentaldevice.Thewholedeviceisconsistofthreeparts:preliminarycoa

6、gulationsystempressureairdissolvingsystemflotationseparationsystem.Afterreagentdemulsificationbypreliminaryflotationsystemtheoilywastewaterentersintotheflotationseparationsystem(flotationcolumn)fromtheupsidethemicrobubbl

7、eproducedbypressureairdissolvingsystementersfromthebottomthebubblethefocscontactscountercurrentinthecolumncollidingadheringwitheachotherfmingbubbleflocscopolymentwhichwillfloatupwardsdisgefromtheslagpt.Analysizethedevice

8、perfmancebymeasuringbubblesizedeterminetheoptimumoperatingconditionsofthepressureairdissolvingsystem.Whentheairdissolvingpressureis0.3MPa，theinflowisabout0.5m3htheliquidratiois8%~10%theaverageparticlesizeisabout45mthebub

9、blesizecanmeettherequirementoftheflotationexperiment.Theresultsshowthatthewatercannotmeetthewastewaterdisgestardafersingletreatmentbythegasflotationprocess.therefethewaterwatertreatmentwillcombingasflotationwiththecoagul

10、ation.dosecoagulantindertodemulsficateremovesmallsuspendedsolidcolloidfmingfloculantgasflotationmakealargenumberofintensivebubblesintothewastewateradheretosuspendedsolidoileachotherthenfloattothewatersurfaceresultinginso

11、lidliquidseparared.ftheselfassembledoilywastewaterthesuitablecoagulantdeterminereagentdosageitspHvalue.theeffectiveofthemixedcoagulantsisbetterthanthesingleoneinthesameconditionthecoagulationreactionrateofPAFCisfasterwit