毕业论文——新型微生物电化学废水处理技术

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1、题目新型微生物电化学废水处理技术摘要本论文基于BES的技术，研究了单室空气阴极MFC处理两类废水。分别为易处理的驱油液废水、联合西兴食品厂及李锦记食品厂废水，以及难处理的印染废水和机械炼油厂废水。MFC处理驱油液废水，其处理周期约23h，COD去除率为87%，功率密度为24W/m3，周期产能密度达到0.304kW·h/m3。处理联合西兴废水，处理周期约13h，COD去除率为85%，功率密度为18W/m3，周期产能密度达到0.063kW·h/m3。处理李锦记食品厂废水，处理周期约34h，COD去除率达92%，功率密度为6.6W/m3，周期产能密度达到0.230kW·

2、h/m3。印染废水由于其生物毒性，MFC直接处理效果很差。采前处理技术先处理印染废水后，MFC性能得到较大改善。MFC处理机械炼油厂废水其效果较差，其原因可能是废水中悬浮物覆盖在电极表面，影响产电细菌在电极表面的附着。关键词：微生物电化学系统(BES)；微生物燃料电池(MFC)；处理实际废水；产电性能；处理效果；前处理iAbstractThepaperintroducestheuseoftwokindsofwastewaterinthesingle-chamberair-cathodeMFCprocessingbasedonBES.TheEasyprocessin

3、gwastewatersuchasFloodingwastewater,UnitedXixingfoodfactorywastewaterandLeeKumKeeFoodFactorywastewaterisonekind,andthewastewaterdifficulttotreatsuchasprintinganddyeingwastewaterandmechanicaloilrefinerywastewateristheother.UsingMFCtotraetfloodingwastewater,thetreatmentperiodisabout23h,

4、theremovalrateofCODis87%,thepowerdensityis24W/m3,cyclecapacitydensityreached0.304kW·h/m3.WhentreatingUnitedXixingfoodfactorywastewater,thethetreatmentperiodisabout13h,theremovalrateofCODis85%,thepowerdensityis18W/m3,cyclecapacitydensityreached0.063kW·h/m3.AndwhentreatingLeeKumKeeFoodF

5、actorywastewater,thethetreatmentperiodisabout34h,theremovalrateofCODis92%,thepowerdensityis6.6W/m3,cyclecapacitydensityreached0.230kW·h/m3.Becauseofitstoxicity,thetreatmentthatMFCtreatsprintinganddyeingwastewaterdirectlyisnotgoog.Mechanicaloilrefinerywastewater,MFCisnotefficentforitst

6、reatment.Whenthedilutionratioofthiswastewaterislow,itsinternalCODdegradationisnotrelatedtomicrobialelectrochemicalaction.Keywords:bioelectrochemicalsystem(BES)microbialfuelcell(MFC)actualwastewatertreatmentproductionofelectricitytreatmentefficiencypretreatmentii目录摘要...................

7、...................................................IABSTRACT...................................................................II第一章绪论.................................................................11.1背景介绍...............................................................11.2以往的研究......

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