The objectives of this study were to perform a bench scale evaluation for treating
perchlorate and nitrate in ISEP spent brine. Specific objectives were to:
develop salt (NaCl) tolerant cultures that can reduce
perchlorate and nitrate;
evaluate the capability of cultures to reduce perchlorate in
spent brine produced by ISEP ion-exchange process;
determine the effect of varying brine constituents on
biological reduction of perchlorate and nitrate; and, perform
microbial characterization of the cultures. All the experiments were conducted using
spent brine from the ISEP process.
Modification included:
addition of 3 times the stoichiometric requirement of
acetate;
adjusting of Mg2+/Na+ ratio to 0.11;
flushing with N2 gas for hr; and,
operated as SBR (50-60% replacement) with
22 hrs reaction time and 2 hrs settling time. Information is outlined on further topics that include: analysis of spent ISEP brine; long-term brine treatment; matrix evaluation; pH effects; salt tolerance; and, nitrate and sulfate effects.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 1.3 MB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Published : | 06/17/2005 |
