کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7081192 1460000 2013 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The steady state anaerobic digestion of Laminaria hyperborea - Effect of hydraulic residence on biogas production and bacterial community composition
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
The steady state anaerobic digestion of Laminaria hyperborea - Effect of hydraulic residence on biogas production and bacterial community composition
چکیده انگلیسی
Methane production by anaerobic digestion (AD) of macroalgae (seaweed) is a promising algal bioenergy option. Work presented here is primarily based on the AD of Laminaria hyperborea using batch and continuously stirred tank reactors. Extrapolation of data from batch studies to long term continuous reactors was unreliable. A conservative organic loading rate (OLR) of 1 g L−1 d−1 was used due to difficulties experienced in achieving steady state performance at an OLR of 1.5 g L−1 d−1. Biogas composition and methane yields (60-70%) were near to values expected from terrestrial feedstocks. Biomass washout, as imposed by the dilution rate (i.e., hydraulic residence), had considerable bearing on the biogas generation profile, particularly at >3 hydraulic residences. Inhibition of methanogen growth was linked to nutrient deficiency and potentially antimicrobial compounds associated with the feedstock. Anaerobic digestion of L. hyperborea proved feasible over extended operational periods.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 143, September 2013, Pages 221-230
نویسندگان
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