A year-long ultraviolet (UV) hydrogen peroxide (UV/H<sub>2</sub>O<sub>2</sub>) study was conducted using a 208-
L/min (55-gpm) pilot with low-pressure and medium-pressure UV reactors. Two
surface water process streams of differing organic content were used in the study,
and UV doses were based on the 80 percent degradation of atrazine and 55 percent
degradation of methyl tert-butyl ether (MTBE). Low and medium pressure lamp
technologies also were compared. Biofilm potential was evaluated by comparing
assimilable organic carbon (AOC) concentration and biofilm growth on coupons
from annular reactors that simulated distribution pipe velocities. Biofilm growth on
the coupons was measured by heterotrophic plate count (HPC) and adenosine
triphosphate (ATP) concentration as quantified by chemi-luminescence. Biofilm
potential differed between lamp technologies, but the magnitude of that difference
depended on the evaluation tool utilized. Includes 7 references, table, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 670 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 6 |
| Published : | 11/01/2009 |
