One of the most common taste and odor problems
reported by utilities is the presence of an earthy/musty
odor caused by geosmin and 2-methylisoborneol
(MIB). This bench-scale study demonstrates the
potential of biofiltration following simulated ozonation
as well as biofiltration alone for the removal of
these compounds under different operational factors
including temperature, media type, geosmin and MIB
concentration, and level of biodegradable organic
matter (BOM).
Experiments were conducted using four parallel
dual media filter columns containing biologically
active anthracite or granular activated carbon media
and sand. Dechlorinated tap water to which geosmin
and MIB were added was used as the source water.
The first round of experiments used a high BOM
level to simulate water that had been subjected to
ozonation before filtration. The second round of
experiments used a low BOM level to simulate nonozonated
water. Results show that all four main factors
were important to both geosmin and MIB
removals and demonstrate the feasibility with which
biofiltration may be used to combat these odorous
compounds. Includes 31 references, tables, figures.
| Edition : | Vol. 98 - No. 8 |
| File Size : | 1
file
, 370 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 12 |
| Published : | 08/01/2006 |
