Literature Survey: Basic Mechanisms of Explosive Compounds in Wastewater.
Abstract
In the production, packing, and demilitarization of TNT large volumes of contaminated water containing from 1 to 150 mg/L 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 ozone/hydrogen perioxide catalytic method appears to be an attractive nonphotolytic means of eliminating low concentrations of nitroaromatics in solution. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1984
- Accession Number
- ADA141703
Entities
People
- A. Viehbeck
- D. A. Meldrum
- D. W. Deberry