کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
581611 | 1453159 | 2009 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Ozone treatment of PAH contaminated soils: Operating variables effect
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A three-level full factorial design has been conducted to assess the influence of gas flow-rate, ozone concentration and reaction time on the remediation of soil contaminated with four PAHs (namely acenaphthene, phenanthrene, anthracene and fluoranthene). Under the operating conditions investigated, reaction time and ozone concentration seem to exert a slight positive effect, whereas gas flow-rate does not affect the process efficiency. Average conversions (related to non-ozonated samples) are in the proximity of 50, 70, 60 and 100% for acenaphthene, phenanthrene, anthracene and fluoranthene, respectively. A high conversion percentage is obtained in the first minutes of the process. Ozone decomposition on soil surface can be modelled by its reactions with easily oxidizable organic matter, recalcitrant ozonation intermediates and inorganic active sites.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 169, Issues 1â3, 30 September 2009, Pages 509-515
Journal: Journal of Hazardous Materials - Volume 169, Issues 1â3, 30 September 2009, Pages 509-515
نویسندگان
Javier Rivas, Olga Gimeno, Ruth G. de la Calle, Fernando J. Beltrán,