This slide presentation outlines information on an annular reactor study on the
effectiveness of ClO<sub>2</sub> in
controlling biological growth
in open-air basins. The objectives of the study included: studying the effectiveness of ClO<sub>2</sub> in controlling
biological growth in open air basins
(HPC, AODC, Chlorophyll-a);
compare Cl<sub>2</sub> and ClO<sub>2</sub>; and,
chlorite, chlorate, bromate, disinfection byproduct
formation. Results of the study include: both continuous and intermittent ClO<sub>2</sub>
potentially at least as effective as Cl<sub>2</sub> in
controlling biological growth;
about 70 µg/L AOX and 25 µg/L TTHM
due to Cl<sub>2</sub> ; TTHM <10 µg/L for ClO<sub>2</sub>; and,
bromate formation below detection limit. Also, a pilot study is discussed that studied the effect of pre-ClO<sub>2</sub> on:
coagulation,
settled turbidity, UV-absorbance, TOC;
ozonation, UV-absorbance, residual ozone, DBP; and,
filtration, particle count, headloss, turbidity.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 960 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 30 |
| Published : | 11/01/2005 |
