This powerpoint presentation presents a 20-month pilot-scale study to examine the impact of
temperature on the performance of an anaerobic biological contactor used
to treat perchlorate-contaminated water. The contactor was successfully
acclimated with indigenous microorganisms. Influent temperatures varied
from 1.4 to 30 ºC. The objectives of the study were to investigate the
effects of temperature on perchlorate removal, nitrate removal, nitrite
formation, dissolved oxygen consumption, sulfide production, and nutrient
acetate consumption. The results confirmed that consistent biological
perchlorate removal to 2 µg/L is feasible at temperatures above 10 ºC.
Effluent concentrations of perchlorate, nitrate, and dissolved oxygen varied
inversely with temperature, while sulfide varied positively with temperature.
Under the conditions that prevailed during this study, 10 ºC was a threshold
temperature below which microbial activity, including perchlorate reduction,
decreased dramatically. Includes table, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 990 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 15 |
| Published : | 11/01/2009 |
