微生物絮凝劑的制備及對纖維板加工廢水的絮凝處理.pdf

1、南京林業(yè)大學(xué)碩士學(xué)位論文微生物絮凝劑的制備及對纖維板加工廢水的絮凝處理姓名：陳賽楠申請學(xué)位級別：碩士專業(yè)：環(huán)境工程指導(dǎo)教師：張齊生20090601PreparationofmicrobialflocculantandflocculantingtreatmenttoMDFwastewaterintheassistantofmicrobialflocculantAbstract6bacteriawerecollectedfromsample

2、ofactivatedsludgerespectivelyfromthestreamletinNanjingForestryUniversityandwastewaterconditionerinMDFindustryTheexperimentalresultsshowedthatmixedstainshadcertainflocculatingactivityDuringthe6bacteriathereweretwo，whichsh

3、owedrelativelyhigherfocculatingactivitynamedM一1，M一2FortheconvenienceoftheapplicationtoindustrytheflocculatingactivityofM一1，M一2andmixedstainswereinvestigatedduringthecultureprocessTheinfluenceofC／Nratioonthebioflocculantp

4、roductionandthedistributionofflocculatingactivityhadbeenstudiedindetailinthisresearchResultsshowedthat80％flocculatingactivityexistedinsupematantandweremuchhighterwhenC／Nwererespectively10，20，25Theproportionofpolysacchari

5、deinflocculatingproductionwereseparatly654％，432％，415％，andproteinwere153％，35O％，198％Thecomponentsandchemicalconfigurationsofbacteria’SproductionwereparticularlyinquiredTotheappearancesofinfraredspectratherewerefunctionalgr

6、oup，suchas，一OH，一COO—inthesurfaceofflocculatingproduction，whichshowedthatM1，M2andthemixedstainswereallaniomcflocculantTheexperimentalresultsexhibitedthatM1showedhi【曲flocculatingactivityinthetreatmentofhighSSwastewater(abo

7、ut90％)，onthecontrarywhileforlowSSwastewaterforinstance，thenaturalwaterbodyflocculatingactivitywasaround50％InthesecondpartoftheexperimentationwepaidmainlyattentiontoflocculatingtreatmentofMDFwastewaterwitllM1Theoptimalcon

8、ditionsforM1inMDFwastewatertreatmentwereobtainedthroughorthogonaltestThereWgTefourmajorfactors：flocculantdosage，stirringspeed，flocculationtime，stirringtimeInfluencedegreewasflocculantdosagefiningspeedflocculationtimestir