Издательство СО РАН

Издательство СО РАН

Адрес Издательства СО РАН: Россия, 630090, а/я 187
Новосибирск, Морской пр., 2

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Яндекс.Метрика

Поиск по журналу

Химия в интересах устойчивого развития

2007 год, номер 2

Mechanochemical Treatment of Contaminated Marine Sediments for PAH Degradation

F. Cangialosi, G. Intini, L. Liberti, M. Notarnicola, T. Pastore and S. Sasso
Department of Environmental Engineering and Sustainable Development, Technical University of Bari, 8 v.le Turismo, 74100 Taranto (Italy)
E-mail: g.intini@poliba.it
Страницы: 139-145

Аннотация

Mechanochemical (MC) treatment for degrading recalcitrant harmful PAH compounds (namely, anthracene and benzo[a]pyrene) adsorbed on marine sediments was investigated in laboratory. Optimal operating conditions (i.e., mill rotation speed, milling time, milling-to-milled mass ratio), together with explanation of their physical effects on sediment particle size and specific surface area were assessed, leading to fast (30-60 min) and very effective (>98 %) degradation of both contaminants under the experimental conditions investigated. Attempts carried out through HPLC analysis and DTA checks before and after MC treatment permitted to envisage likely pathways for chemical reactions occurring during the process, yielding amorphous carbon as final product. Further research is planned to exclude the formation of noxious gaseous by-products.