嗜酸氧化硫硫桿菌的選育及其在磷礦浸出中的應(yīng)用.pdf

1、分類號(hào)——UDCY1020771密級(jí)——學(xué)校代碼!堂皇2劣洚理歹大穿學(xué)位論文題目喳酸氫絲煎煎枉苴的選直丞基查磋貯顯出主煎廛旦英文題目—iveCultivationofA—cidithiobacillusthiooxidansandItsApplicationinBioleachingofPhosphateOre——研究生姓名一邊勛指導(dǎo)教師姓名—三墼塑墓—一職稱—塹盞Lj鎏L——一單位名稱童澀當(dāng)班撞至猩堂瞳郵編430070申請(qǐng)學(xué)位級(jí)別王堂

2、亟學(xué)科專業(yè)名稱疊境王理論文提交日期2QQ魚生!!月論文答辯日期2QQ魚生12旦學(xué)位授予單位亟退堡互太堂學(xué)位授答辯委員會(huì)主席二獬評(píng)閱人2006年12月武漢理工大學(xué)碩士學(xué)位論文AbstractWiththedevelopmentofbioleaching，peoplepaymoreattentiontothebacteriawhichplayimportantroleintheCOUrSeofbioleachingAcidithiobaci

3、dlusgenerallyhavetheabilityt0deriveenergyfromlowvalencesulfurcompoundssuchaselementalsulfurpolysulfide，sulfiteandmetalsulfideThisabilityhasbeenappliedtothebacterialleachingofsulfideores，desulfurizationofcoalandSOonInthis

4、paperastrainofbacteriawasisolatedfromacidminedrainagefromacoalmineinAnhuiandidentifiedasAcidithiobacillus琥iooxidansThemorphologicalcharacteristicsareasfollows：thelengthofAttisII5urn，G。，singlepolarflagellaWithregardtotheg

5、rowthfeature，itcangrowunderpH0550，andattemperature2535“CTheoptimalconditionforgrowthispH2035，28—30。CAttisabletoderiveenergyfromelementalsulfurandotherlowvalencesulfurcompounds，usingaminonitrogenasnitrogensourceandC02asca

6、rbonsourceAfterfurtherisolationandpurification，astrainofAttthatcanbeusedeffectivelyintheleachingoflow—gradephosphateorewasisolatedItscharacteristicsofmorphologyandcultivationwerestudiedThrouglltheinvestigationoftheeffect

7、ofdifferentsolidculturemediumcomponentsontheisolationandpurificationofAtt，theoptimumisolationconditionsweredeterminedasusingadoublelayerplatewithchemoautotrophicbacteriumAttspreadontotheupperStarkeysolidculturemediumlaye

8、randheterotrophicmicrobeRhodotorulaspspreadontothebottomagarlayerresultinginsignificantlyincreaseddensityandreducedformingtimeofthebacterialcolonyAccordingtotheexperimentofleachingthelowgradephosphateorewithdilutesulfuri

9、cacid，ithasshownthatdilutesulfuricacidcarlleachthephosphateorebutwithaverylowleachingrateThenexperimentsontheleachingoflowgradephosphateoreweremadeusingtheisolatedAttstrainTheinfluenceoffactorsincludingculturemedium，thea

10、dditionofsurfactantandpulpconcentrationontheleachingofphosphateorewiththecultivatedAttWasstudiedThron曲preliminaryexperiments，itwasconcludedthatitcanreachitsbesteffectontheleachingofphosphateoreunderthefollowingconditions