Literature Survey: Basic Mechanisms of Explosive Compounds in Wastewater.
Final rept. 13 Dec 82-13 Dec 83,
SUMX CORP AUSTIN TX*
Pagination or Media Count:
In the production, packing, and demilitarization of TNT large volumes of contaminated water containing from 1 to 150 mgL of 2,4,6-trinitrotoluene TNT may be generated. This project studied the mechanisms of oxidative treatment methods for trinitroaromatic-containing wastewaters. The following methods were examined 1 hydrogen peroxide photolysis, 2 direct ozonation, 3 ozone photolysis, 4 catalytic ozone-hydrogen peroxide decomposition, and 5 transition metal catalyzed hydrogen peroxide decomposition. The effects of solution pH, temperature, and the intensity of ultraviolet light irradiation on the removal of the nitroaromatics were examined. The oxidation of 1,3,5-trinitrobenzene TNB was found to be the rate limiting step in the removal of nitroaromatic compounds in TNT-containing waters. Both TNT and TNB in dilute aqueous solution can be removed by methods which generate highly reactive hydroxyl radicals. The ozone photolysis approach is efficient from a reagent usage viewpoint. The combination ozonehydrogen perioxide catalytic method appears to be an attractive nonphotolytic means of eliminating low concentrations of nitroaromatics in solution. Author
- Ammunition and Explosives
- Water Pollution and Control