胞外聚合物在生物除磷中作用的.研究

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1、重庆大学硕士学位论文rmp，thesupernatantwasEPS．Inthismethod，thedispersingeffectsofultrasoundcanpromotethereactionofionexchangefollowed—up，andledtomoreEPSextractionamount．Whenresinamountaddedwas80999VSSandstirringspeedwashigh，thestirringtimewasthekeyparametertocontrolcelldamageanddeath．Undert

2、heexperimentalconditions，TPcontentsinEPSwasabout5．31％，theTPcontentsinintracellularpolymersubstancesofsupernatantwasabout0．84％，andtheformeramountofphosphoruswas6timesmorethanthelatter．⑨TheefficiencyofphosphorouscombinedbyEPSremovalwasstudied，takingfivedifferenttypesofsludgeasobjec

3、ts．TheresultsshowedthatEPSamountextractedbyultrasonic／cationexchangeresinmethodtookup14％～28％oftotalEPS．However,phosphorouscontentsinthispartofEPSextractedtookup34％—。57％ofTPcontentsinactivatedsludge．TheinorganicphosphoruscontentsinextractedEPSwereabout15％一31％oftheTPcontentsinactiv

4、atedsludge．TheamountofphosphorousabsorptioninEPSwas2．6，2．9，2．8，2．0and1．4timesthantheirownbacteriaphosphorousabsorptionamount．Theresultsaboveshowedthat，theamountofphosphorusEPSabsorbedwasmuchlargerthanthatofbacteria．Obviously,EPSwasactedasanimportantstoreroomofphosphorusinthebiolo

5、gicalfloes．④TheroleofEPSinbio-phosphorousremovalwasstudied，takingtwoSBRreactorsinanaerobic-aerobicrunningasobjects．Moreover,theconceptualmodelofEPSremovingphosphorouswasdeduced．TheresultsshowedthatthephosphorousinanaerobicconditionwasalmostcompletelyreleasedbyEPS，andthephosphorou

6、sinaerobicconditionwasmostlyabsorbedbyEPS，forthetwoSBRreactorswiththeratioofCODandTPininfluentbeing50：1and100：1respectively．Inthesecourseofbiologicalphosphorusremoval，theamountofremovalbyEPSwasaccountedfor60％-70％，theamountofremovalbybacterialcellwasaccountedfor30％～40％．Intheconcep

7、tualmode，theindirectlytransfersofphosphorousbetweenEPSandmainliquidwasimportantapproachofEPSremovingphosphorous．Radically,EPSwastakenasimportantstoreroomofphosphorus，whichwasphysiologicalcharacterofbacteriatosuitthechangeofenvironment．Keywords：ExtracelluarPolymerSubstances，Biolog

8、icalPhosphorousRemoval，Ultrasound，Cation