Photocatalytic Transformations and Degradation of 2,4,6-trinitrotoluene (TNT) in TiO2 Slurries

by Daniel C. Schmelling, Univ of Notre Dame, Notre Dame, United States,
Kimberly A. Gray, Univ of Notre Dame, Notre Dame, United States,

Document Type: Proceeding Paper

Part of: Critical Issues in Water and Wastewater Treatment


The photodegradation of TNT in a TiO2 slurry reactor was studied as both a potential treatment technique for the remediation of water with munitions contamination and to gain further insight into the behavior of a nitroaromatic compound in a photocatalytic system. Photocatalytic and direct photolytic reactions were compared by evaluating rates and extent of TNT transformation and mineralization in the presence and absence of oxygen. Nitrate, nitrite, and ammonium ion concentrations were determined and mass balances on carbon and nitrogen were performed for the catalytic system.

Subject Headings: Water pollution | Chemical degradation | Water treatment | Sludge | Nutrient pollution | Nitrogen | Mitigation and remediation

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