Files in this item



application/pdf3363034.pdf (6MB)Restricted to U of Illinois
(no description provided)PDF


Title:The Influence of Shear on Extracellular Polymeric Substance Production in Membrane Bioreactors
Author(s):Menniti, Adrienne L.
Doctoral Committee Chair(s):Eberhard Morgenroth
Department / Program:Civl and Environmental Engineering
Discipline:Civl and Environmental Engineering
Degree Granting Institution:University of Illinois at Urbana-Champaign
Subject(s):Engineering, Environmental
Abstract:The experimental results of the current study show two dominant mechanisms of soluble EPS production in MBRs: (1) erosion of floc-associated EPS and (2) biomass decay caused by predation. Soluble EPS produced by erosion was readily biodegradable while soluble EPS produced by biomass decay which was slowly degradable. It was further demonstrated that mathematical models of soluble EPS production in MBRs should include both erosion of floc-associated EPS and biomass decay. EPS production is tightly linked with fouling in MBRs. The current work demonstrates the link between MBR operation (i.e., level of shear) and EPS production. Ultimately, an understanding of the complex mechanisms of EPS production and their inter-relationship with process parameters will help facilitate the evolution of MBR operational philosophy toward strategies that both minimize the production of biological foulants in addition to reducing the deposition of foulants on the membrane surface.
Issue Date:2009
Description:113 p.
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2009.
Other Identifier(s):(MiAaPQ)AAI3363034
Date Available in IDEALS:2015-09-25
Date Deposited:2009

This item appears in the following Collection(s)

Item Statistics