Hd hydrolysis/biodegradation toxicology and kinetics. Final report, October 1995-June 1996
One technology developed for potential use in the disposal of RD (2,2`-dichlorodiethyl sulfide) from the Aberdeen Proving Ground unitary chemical stockpile is hydrolysis followed by biodegradation. Stockpile RD (89.2% pure) was hydrolyzed in 90 deg C water at a concentration of 3.8 wt %. The reaction was complete (RD undetectable at 200 ppb level), and the product typically contained 90-95% thiodiglycol. The complete product was amended with 1.5 g/L NH4Cl, 0.28 g/L KH2PO4 and trace mineral salts and fed to aerobic sequencing batch reactors, seeded with activated sludge. The efficiency of carbon removal in the bioreactors was typically >90 %, and the effluent was nontoxic as determined by aquatic toxicity tests.
- Research Organization:
- Edgewood Research, Development and Engineering Center, Aberdeen Proving Ground, MD (United States)
- OSTI ID:
- 464226
- Report Number(s):
- AD-A--319798/5/XAB; ERDEC-TR--382
- Country of Publication:
- United States
- Language:
- English
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