This powerpoint presentation begins by providing a brief overview of several large taste and odor (T&O) events at a water treatment plant (WTP) which prompted the utility to
consider installing T&O reduction treatment. An Ultraviolet (UV) Advanced Oxidation Process (AOP) was selected, and specific objectives for
bench-scale testing included the following:
evaluate UV AOP effectiveness for MIB oxidation on
filtered water; evaluate two water quality conditions in the
water collected at the tail end of the lake turnover (December
sample);
water collected after the lake turnover (February sample);
determine if finished water
MIB level goal of 5 ng/L can be
achieved; and,
determine if AOC levels significantly
change as a result of UV AOPs. Conclusions from bench-scale UV AOP testing included the following:
UV AOP showed over a 5 log reduction
in MIB;
water quality parameters
were not impacted; AOC had a small increase
from UV AOPs;
UV AOPs can be
located downstream of
filtration; and,
quenching of peroxide residual
is necessary. A Cost comparison was completed based on bench-scale testing for treatment
technologies. Presentation summary and conclusions indicate the following: UV AOPs can provide high levels of MIB
reduction (>5 log); AOC creation was reasonable and allowed
for UV reactors to be placed downstream
of existing filters;
AOC creation is water quality specific;
UV AOP was cost competitive with ozone
and GAC; and, the
project is moving forward with design of
UV AOP facility. Includes tables, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 880 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 11 |
| Published : | 11/01/2008 |
