新型脉冲电源研制及其处理六氯苯废水的分析-development of a new pulse power supply and analysis of its treatment of hexachlorobenzene wastewater.docx

下载文档 降价啦

3
0
约9.27万字
约 129页
2018-06-03 发布于上海
举报
版权申诉
保障服务

新型脉冲电源研制及其处理六氯苯废水的分析-development of a new pulse power supply and analysis of its treatment of hexachlorobenzene wastewater.docx

1、本文档共129页，可阅读全部内容。
2、有哪些信誉好的足球投注网站（book118）网站文档一经付费（服务费），不意味着购买了该文档的版权，仅供个人/单位学习、研究之用，不得用于商业用途，未经授权，严禁复制、发行、汇编、翻译或者网络传播等，侵权必究。
3、本站所有内容均由合作方或网友上传，本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺！文档内容仅供研究参考，付费前请自行鉴别。如您付费，意味着您自己接受本站规则且自行承担风险，本站不退款、不进行额外附加服务；查看《如何避免下载的几个坑》。如果您已付费下载过本站文档，您可以点击这里二次下载。
4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等，请点击“版权申诉”（推荐），也可以打举报电话：400-050-0827(电话支持时间：9:00-18:30)。

新型脉冲电源研制及其处理六氯苯废水的分析-development of a new pulse power supply and analysis of its treatment of hexachlorobenzene wastewater

oxidizingactivespecie,andH2O2isthemoststableactivespecie.TheresultsshowedthattheconcentrationsofH2O2increasedwithincreasingthepeakvoltageandairflowrate.TheconcentrationsofH2O2increasedgreatlywhenairwasinjectedintothereactionregionduringthedischargeprocess.Whentheexperimentalconditionwas35kVpeakvoltage,30Hzfrequencyand2cmdistancebetweenelectrodes,theinitialratesofH2O2were11.7and1.67×10-9mol/swithandwithoutbubblingair,respectively.EnergyefficiencyofproductionH2O2wasfoundtobe6.56and0.96×10-11mol/Jwithandwithoutbubblingair,respectively.TheadditionofarightamountofTiO2greatlyincreasedtheconcentrationsofH2O2.Theresultsoftheorthogonalexperimentshowthatprimaryandsecondaryfactorsarepeakvoltage,dischargetime,andairflowrate.Highperformanceliquidchromatography(HPLC)hasbeenemployedtomeasurethedefiniteconcentrationofOH·radicalsproducedbythenovelnanosecondpulsepowerbydeterminingthehydroxylatedderivativesofsalicylicacid.200mg/LsalicylicacidwasusedtotrapOH·radicalsintermoftheeffectivetrapping.Itwasobservedthat2.3-dHBAand2.5-dHBAwereproducedaboutinproportionsof30%and70%,respectively.TherepeatabilitywasexaminedthroughtheR.S.D.sofpeakareas.TheresultsshowedthattheconcentrationsofOH·increasedwithincreasingthepeakvoltage,theinitialratesofOH·were4.1,5.7,and7.7×10-10mol/sat30,35,and40kVwithoutbubblingair,respectively,andtheinitialratesofOH·were18.1,22.1,and26.1×10-10mol/sat30,35,and40kVwithbubblingair,respectively.TheconcentrationsofOH·increasedgreatlywhenairwasinjectedintothereactionregionduringthedischargeprocess.EnergyefficiencyofproductionOH·withoutbubblingairwasfoundtobeindependentoftheappliedpowerinputparametersandanaveragevalueof3.23×10-12mol/Jwasobtained.EnergyefficiencyofproductionOH·withbubblingairdecreasedwithincreasingtheinputenergy.ThedegradationofHCBbythepulseddischargeplasmausinganeedle–platereactorhasbeeninvestigated.Effectsofsomefactorswerestudied,includingpeakvoltages,treatmenttime,andairflowrate.ThedegradationreactionofHCBaccordedwellwithpseudofirstorderkinetics,andthedegr