Details

Autor(en) / Beteiligte

• Thomas, J. Mathew
• Hernandez, Rafael
• Kuo, Chiang-Hai

Titel

Single-step treatment of 2,4-dinitrotoluene via zero-valent metal reduction and chemical oxidation

Ist Teil von

• Journal of hazardous materials, 2008-06, Vol.155 (1), p.193-198

Ort / Verlag

Amsterdam: Elsevier B.V

Erscheinungsjahr

2008

Quelle

MEDLINE

Beschreibungen/Notizen

• Many nitroaromatic compounds (NACs) are considered toxic and potential carcinogens. The purpose of this study was to develop an integrated reductive/oxidative process for treating NACs contaminated waters. The process consists of the combination of zero-valent iron and an ozonation based treatment technique. Corrosion promoters are added to the contaminated water to minimize passivation of the metallic species. Water contaminated with 2,4-dinitrotoluene (DNT) was treated with the integrated process using a recirculated batch reactor. It was demonstrated that addition of corrosion promoters to the contaminated water enhances the reduction of 2,4-DNT with zero-valent iron. The addition of corrosion promoters resulted in 62% decrease in 2,4-DNT concentration to 2,4-diaminotoluene. The data shows that iron reduced the 2,4-DNT and ozone oxidized these products resulting in a 73% removal of TOC and a 96% decrease in 2,4-DNT concentration.