低溫等離子體殺菌的實(shí)驗(yàn)研究.pdf

1、北京工業(yè)大學(xué)碩士學(xué)位論文低溫等離子體殺菌的實(shí)驗(yàn)研究姓名：倪盈申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：熱能工程指導(dǎo)教師：陳永昌20090501北j：iT、II，人’等T!≯fI!j!I：’≯fI’t“淪迎ABSTRACTThenonthermalplasmaantiseptictechnologyisanewenvironmentalprotectiontechnologywhichhasdevelopedinrecent20yearsResearchs

2、howsthatplasmasterilizationtechnologycanovercomelimitationanddeficiencyofthetraditionalmethodIthasthepotentialtooffernormaltemperaturegeneratingsterilizewillnotbumoutthetreatedgoodswillnotproducethebyproductandtoxicresid

3、ueIthastheadvantageofhighe伍ciencyandnopollutionSOitbecomesaresearchhotfoellsintheworldIngeneral，theplasmaresearchforgassterilizationisrelativelymore，butthedisinfectionofwaterseriouslylacksresearchThisP即ergetstotheexperim

4、entalstudyofthisnewtechnologybactericidalpropertiesThereisavarietyofdischargingformsandmanymethodsofgeneratingnon—thermalplasma，thetemperatureofcoronadischargeplasmaislowandthecoronadischargeplasmacouldbeproducedatnormal

5、temperatureandatmosphericpressureThereforethissubjectdesignsandsetsupasetofequipmentofcoronadischargeplasma，usesthehi曲voltageDCpowersupplyelectrictostrikethroughgases，generatesnonthermalplasmatokillgermsinthewaterThisthe

6、sisresearchesforthecharactersofcoronadischargeplasmaincludingthetheoriesofcoronadischarge，theconditionofcoronadischargeproduction，theprocessofcoronadischarge，andthemechanismsofcoronadischargeThesubjectchoosesEscherichiac

7、oli285asexperimentalbacterialresearchesfortheresultsofsterilizationbynon—thermalplasmaunderthestaticexperimentalcondition，andinspectsthesterilizationeffectofdifferentfactors，suchasvoltage，conductanceelectrodesdistance，Wa

8、tel“l(fā)evel，electrodeformsanddifferentairmediumtothesterilizationwithnonthermalplasmaMeanwhile，itsetsupexperimentalsystem，conductsthedynamicexperimenttocomparethedifferentresultsofthestaticanddynamicexperimentandprobeintot

9、hemechanismofsterilizationResultsshowsthatunderthestaticexperimentcondition，thenonthermalplasmahastheeffectofsterilizationfortheEcoliTheeffectofthesterilizationincreaseswiththeincreasesofthevoltageandtreatmenttimewhileit

10、decreaseswiththeincreasesoftheelectrodesdistanceandthewaterlevelChangesintheconductanceofthewaterhavenothingtowiththeeffectofsterilizationInaddition，thePaperresearchestheeffectsofdifferentairmediumonthesterilization，andt

11、heresultsshowsthatthesterilizationeffectofargonplasmaisbetterthannitrogenplasmabetterthanairplasmaMoreoverinthedynamicexperiment，thisthesisstudiestheeffectofthesterilizationontheEcoliofthenonthermalplasmaintheflowregimew

12、hicharetreatedbytwocirculatingmethodsinclude：goingoncethroughtheprocessorandcirculatingtheprocessorinthewholesysternTheresultshowsthecapabilityofthenon—thermalplasmaisdirectratiowiththevoltageandthetreatmenttimeThesteril