کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
682840 888991 2010 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Predicting VFA formation by dark fermentation of particulate substrates
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
Predicting VFA formation by dark fermentation of particulate substrates
چکیده انگلیسی

This study presents a mathematical model for predicting volatile fatty acid (VFA) production by dark fermentation of complex particulate substrates of biomass origin. This model is based on the premise that degradable components of such substrates are first hydrolyzed into soluble monomers, which are then fermented to liquid and gaseous end products. The model considered cellulose and hemicellulose as the degradable components of typical biomass-based organic substrates; and volatile fatty acids, hydrogen, and carbon dioxide as the end products. Hydrolysis of the particulate forms of the components is modeled by a surface-limiting rate equation, and the formation of end products is modeled following the guidelines of the anaerobic digestion model (ADM1). The model was calibrated and validated using experimental COD and VFA data from six batch reactors where, cattle manure was tested as a representative biomass-based substrate. The model predictions agreed well with the temporal trend in the experimental data, with overall r2 of 0.85 for COD, 0.82 for acetic acid, 0.72 for butyric acid, and 0.42 for propionic acid.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 101, Issue 19, October 2010, Pages 7492–7499
نویسندگان
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