優(yōu)勢(shì)菌處理含高濃度苯胺廢水機(jī)理的研究.pdf

1、南開(kāi)大學(xué)碩士學(xué)位論文優(yōu)勢(shì)菌處理含高濃度苯胺廢水機(jī)理的研究姓名：周霞申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：微生物學(xué)指導(dǎo)教師：侯文強(qiáng)佟樹(shù)敏20030505南開(kāi)大學(xué)碩士研究生畢業(yè)(學(xué)位)論文英文摘磷AbstractAnilineisoneofthemostimportantindustriallyproducedaminesItismostWidelyusedforthemanufactureofpolyurethanes，rubberandpestici

2、des(I[tanahan，1989)TheyhavebeenreportedtoexhibitsignificantmammalJantoxicityandacutetoxiceffectsoffish：thus，theyareconsideredimportantenvironmentalpollutantsAlthoughanilinesaredecomposedbyavarietyofphysicochemicalprocess

3、essuchasevaporation，autooxidation，photooxidationandchemicalbindingthemajorpathwayfortheirremovaifromaquaticenvironmentsiSthroughbiodegradationWeattainedahigh—performanceaniline—degradingbacterialconsortiumNKSItcontainstw

4、oaniiine—degradingbacterialspecies，namedNKSlandNKS2respectivelyHereinwereportedsomephysiologicalandbiochemicalcharacteristicsofNK8Bytestinsthekeyenzymeactivityintheprocessoftheanilinedegradation，weunderstandthepathwayfor

5、NKStodegradeanilineFinallywelocalizedthegenesthatareinvolvedinthiSprocessTheresultsofthephysiologicalandbiochemicalcharacteristitsofNKSshowedthat：Ahigherinoculationresultedabetterdegradationeffect，especiallyinthefirsthou

6、rsofthedegradationAccordingtothegrowthcurveofNKS，asthereductionofaniline，theconcentrationofthedissociativebacteriumbecameIowerThebacterialconsortiumwascapableofgrowingonanilinemediumhigherthan5000mg／LItonlytook36hourstod

7、egradealloftheanilineabout2000mg／LTheoptiumconeentrationofanilinewas3000mg／LTheoptimumtemperatureforNKSgrowthandanilinedegradationwas30℃andtheoptimumpHforNKStogrowanddegradeanilinewas7Fiveheavymetalionscouldinhibitthegro