復(fù)合菌群產(chǎn)微生物絮凝劑在處理制革廢水中的應(yīng)用.pdf

1、山東輕工業(yè)學(xué)院碩士學(xué)位論文復(fù)合菌群產(chǎn)微生物絮凝劑在處理制革廢水中的應(yīng)用姓名：王軍秀申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：皮革化學(xué)與工程指導(dǎo)教師：李彥春20090610ABSTRACTTraditionalflocculantshavebeenusedwidelyduetotheirlowpricesandgoodeffectHowevertheirdisadvantageshavedrawnpeople’SattentionAluminiumrenl

2、ailledindrinkingwatereasilyleadstoseniledementiaThemonomerofpolyacrylamide(PAA)can’tbedegradedanditsbothneurotoxicandoncogemcforhumanbodyThuS，whichissafeandbiodegradablemacromolecularflocculantssecretedbymicroorganismssh

3、ouldappearsTheirdegradationproductsaleharmlesstotheenvironmentandhumansThedevelopmentofanewbiodegradablebioflocculantwithstrongflocculatingactivityisneededInthelate1980s，Microbialflocculantshaveattractedmoreandmoreresear

4、chers’attentionThepaperintroducedtheflocculants，theirdevelopmentandapplicationmtreatlnentofwastewaterBasedonthose，wehadstudiedaboutmicrobialflocculantsfromthefollowsFourflocculantproducingmouldswereisolatedfromactivateds

5、ludgewhichtreatedtannerywatersamplesbyanagarplatecultureusingfourmediums，peptoneculture，Czapekculture，Gao1，PDAAkaolinsuspensionwasusedasaflocculationtestmaterialByobservingthosemouldswithmicroscope，analysisingandselectin

6、g，wefoundthatthosefourmouldsbelongtoaspergillus，theirflocculatingratearerespectively706％，702％，788％and713％BasedonEMtechnicalprinciple，aftertestingmanycompoundexperiment，wecandrawaconclusionthatafterflora1andflora3，flora2a

7、ndflora4beingcompounded，theflocculatingactivityofflorawouldmakehigherTheywerenamedMBFIandMBFIItheirflocculatingratewererespectively844％and869％Next，bychangingthecontentsofculturemediumandconditionsofcultureandSO011，throug

8、hdoingorthogonalexperiment，wegotacombinationofcultivationthathadthebeste蕾fectofcultivationTheoptimalCultureconditionsofcompoundflora1wereasfollows，twentyfourhours，pHeight，sucrose，NAN03TheoptimalCultureconditionsofcompoun

9、dflora11wereasfollows，twentyfourhours，pHeight，glucose，ureaWegotrawproductafterextractionMBFbyorganicsolventThenitscompositionwasdeterminatedbyseriesofbiochemicalresponses，Theresultsshowedthatthenocclllantcontainedpolysac