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1、超声内电解处理高浓度含盐有机废水的实验研究超声内电解处理高浓度含盐有机废水的实验研究叶强h,李正山h,徐明杰,黄丽玷,马留贵(1.四川大学a.建筑与环境学院Ib.轻纺与食品学院,四川成都610065;2.成都益荣环保有限公司,四川成都610502)摘要:分别研究了铁碳内电解,超声波辐照以及不同组合方式对高盐度泡菜废水的处理,重点研究了铁碳比,铁碳加入量,溶液pH值,处理时间,超声功率密度等因素对高含盐量泡菜废水降解率的影响.实验表明,铁碳加入对内电解处理效果影响显着,超声波处理该废水的最佳pH值为7;超声内电解处理的最佳条件为:铁碳比2:
2、1,铁碳加入体积为溶液体积的25%,溶液初始pH值为7,超声功率密度为O.225w/cr~,曝气处理9olllin.处理后出水COD去除率大于50%,达到了对该类高浓度含盐废水的预处理效果,降低了后续生化系统的处理负荷.关键词:超声内电解;高浓度;含盐有机废水中图分类号:X703.1文献标志码:A文章编号:1005—8141(2009)12—1060—04TreatmentofHypersallne0】学lllicWastewaterthInteriorMicro—dy豳IntensifiedbyUltrmo~clrridafionYEQ
3、iangla,LIZheng—shallIa)XUMing—jie2,HUANGLilb,MALiu—gui2(1.SichuanUniversitya.CollegeofEnvironmentalEngineering;b.CollegeofUshtIndustryandTextileandFoodIeeri玎g,Chengdu610065,China;2.ChengduYimngEnvironmentalProtectionCo.Ltd,Chengdu610502,China)Abstract:Thispaperwl舾aboutthe
4、treatmentofhypersalinesauerkrautwastewaterwithprocessesincludingiron—carboninteriormicroelec—trolysis,ultrasonicirridationandtheseveralcombinations.ItfocusedontheinvestigationofdegradationrateinfluencedbythesefactorslikeironC~3F-bunritio,thetotalamountsofironandcarbon,the
5、incipientpHvalueoftheaqlleoussolution,treatingduration,andpowerdensityofthesupersonicwave.Theexperimcmindicatedthatthetotalamountsofironandcarbonsignificandyaffectedtheinteriormicro~electrolysistreatment,andtheopti-瑚pHvalueforultrasonictreatmentofthiswastewaterWas7.Theopt
6、imaconditionwasthattheironandcarbonratiokeeps2:1.thetotaladditionamountsto25%ofthesolution'wholevohmae,theincipientpHvalueWaS7,andthepowerdensityoftheultrasonicwavewas0.225w/era3,andthewholesystemtanfor90minutes.Afterthesewholetreatment,thechemicaloxygendemand(COD)ofthewa
7、stewaterWaSreducedbyIn0than50%.whichachievedgoodpre一协蜘ntefficiencytOthishyper—concentrationbrinewastewater,andreducedthetreatinghadofthefollowingbid枷treatment.Keywords:ultrasonicinternalelectrolysis;hyper—concentration;brineorganicwastewater对高浓度高含盐有机废水的处理,若不以浓缩分离盐类为目的,则生物
8、法具有技术上和经济上的可行性n-3].在一定的预处理条件下,高盐废水的可生化性得到提高,同时也减轻了后续生化处理的负荷,减少了对微生物有毒害作用的物质.许多针对高盐有机废水的处理工艺均是在生化