This powerpoint presentation begins by providing a brief overview of heterotrophic bacteria and its relationship to bulk water. There were two study objectives, the first was to determine the conditions when the
presence of bulk water heterotrophic plate count (HPC) bacteria is
favored over the presence of biofilm HPC
bacteria. Data collection included: biofilm HPC; bulk water HPC; bulk water chlorine; and, bulk water AOC. The effect of chlorine residual on bulk and biofilm
bacteria concentration in terms of bacteria counts and ratio is presented, along with the effect of residence time on bulk and biofilm
bacteria concentration in terms of ratio. The second study objective was to develop mechanistic models that can
simulate how residence time, chlorine
concentration, and water velocity influence the
fraction of HPC bacteria in biofilms relative to
their presence in bulk water. A comparison was done between a
completely mixed flow reactor (CMFR) model vs. a
plug flow reactor (PFR) model. Includes table, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 1 MB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 29 |
| Published : | 11/01/2009 |
