Science and Technology of Energetic Materials

Vol.67, No.2 (2006)

Research paper -Special Issue for ISEM 2005-

Degradation of waste water from TNT manufacturing *
Toshihiko Kitayama, Youichi Sano, Masaru Matsumoto, Toshiyuki Nagaishi, Nobuo Nagayasu, and Youichiro Harada


The degradation of red water from TNT waste water was studied. Three methods were employed in this study: Fenton oxidation; Photo-Fenton oxidation, and Fenton oxidation with TiO2 photo-catalyst. Red water was decolorized by Fenton oxidation within 2 - 3 hours. The reaction rate for Fenton oxidation with TiO2 photo-catalyst > Fenton oxidation under UV radiation > Fenton oxidation.

Organic nitrogen (nitro group) was essentially mineralized to nitrate ion and ammonium ion. The nitrate ion concentration was 2.1 times greater than the ammonium ion concentration for the photo Fenton oxidation method, and 2.3 times greater than the Fenton oxidation with TiO2 photo-catalysis method. For the Fenton oxidation method, UV radiation appeared to be effective. This suggests that the reduction Fe3+→Fe2+ occurs to reproduce Fe2+ ion under radiation.

> Full text (Open access*)


Red water, Degradation, TiO2 photo-catalyst, Fenton, Photo-Fenton

* Selected papers presented at the 2nd International Symposium on Energetic Materials and their Applications (ISEM 2005).

* ISEM 2005に投稿された論文です。

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