This powerpoint presentation begins by providing a brief overview of biofouling in a membrane bioreactor (MBR) system, the
fouling potential of extracellular polymeric substances (EPS), and
QCM-D technology. Study objectives were to: determine the effects of water chemistry
(ionic strength, calcium, and pH) on
adherence properties of EPS extracted
from different locations in HG-MBR system; and,
compare adherence properties of EPS
extracted from different locations in the
HG-MBR and analyze if there is a
correlation with EPS components. Study methodology included:
hybrid growth membrane bioreactor (HG-MBR) system;
EPS extraction and analysis; and,
adherence and physico-chemical characterization of the EPS with
QCM-D. Presentation conclusions indicate that: electrostatic repulsion plays a major role in EPS
adsorption in which more rigid conformation is
formed at higher ionic strength;
calcium is specifically interacting with EPS
functional groups increasing EPS adsorption and
rigidity;
increasing the pH, EPS becomes more "fluffy",
followed by some desorption; and,
no correlation was found between the location of
the EPS in the reactor and its adherence
properties. Includes table, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 1.8 MB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 22 |
| Published : | 11/01/2009 |
