The objective of this
work is to study the influence of hydrodynamics using a direct microscopic observation
technique and biofilm initiation and cleaning mechanisms using an annular biofilm
reactor.
Initial microbial adhesion onto nanofiltration (NF) and reverse osmosis (RO) membranes was investigated through systematic
adjustment of physical and chemical conditions. An optically clear cross-flow membrane
filter mounted on a microscope stage coupled with a CCD camera allowed direct
observation of the initial attachment of stained deposited microorganisms. Post-filtration
image analysis enabled quantification of net particle deposition rates for different
microbial cells, solution/suspension properties, membrane properties, and operating
conditions. The experimental set up used for the DOB experiments is provided, and the
computational fluid dynamics (CFD) modeling technique used for this study has
been described in detail by Subramani et al. A commercial finite element solver
(FEMLAB 3.0, Comsol, Inc., Sweden) was used to solve the differential transport
equations. Includes 8 references, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 560 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 8 |
| Published : | 03/01/2007 |
