کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5146322 | 1497370 | 2017 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of microwave and ultrasound irradiations on dark fermentative bio-hydrogen production from food and yard wastes
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
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چکیده انگلیسی
Lignocellulosic materials like food and yard wastes are difficult to hydrolyse and this results in decreased bio-hydrogen yields. As such, this study investigated the potential of microwave (MW) and ultrasound (UtS) irradiations for pre-treating food and yard wastes prior to dark fermentation. The specific energy was varied from 0 to 6946Â kJ/kg total solids for each pre-treatment and the results obtained showed that both pre-treatments generally enhanced solids and organic matter solubilisation, with the effects more significant at high pre-treatment conditions. However, none of the pre-treatment conditions improved bio-hydrogen production. The main reasons identified for the low H2 yields were the possible formation of inhibitors due to pre-treatments while the higher concentrations of propionic acid and ethanol among the end-product metabolites could also have suppressed bio-hydrogen production. Consequently, neither MW nor UtS irradiation is feasible as pre-treatment of food and yard wastes for enhanced bio-hydrogen production under the range of specific energies studied.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 7, 16 February 2017, Pages 4040-4050
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 7, 16 February 2017, Pages 4040-4050
نویسندگان
Zumar M.A. Bundhoo,