Anaerobic Digestion of Food Waste, Brewery Waste, and Agricultural Residues in an Off-Grid Continuous Reactor
نویسندگان
چکیده
Small-scale anaerobic digestion (AD) can be an effective organic waste management system that also provides energy for small businesses and rural communities. This study measured fuel production from digestions of single mixed feedstocks using unheated, 2 m3 digester operated continuously in a temperate climate over three years. Using local food waste, brewery grease agricultural residues, this determined small-scale AD co-digestions were almost always higher yielding than during psychrophilic operation seasonal temperature transitions. Agricultural residues Miscanthus x giganteus had the greatest impact on biomethane co-digestion (4.7-fold greater average biogas %CH4), while mesophilic alone produced most (0.76 gCH4 gVS?1 d?1). Biogas transition to was temporarily maintained at levels similar digestions, particularly co-digestions, but quality declined these shifts. Full-time small-scale, unheated systems could feasible climates if feedstock is intentionally amended stabilize carbon content.
منابع مشابه
Inhibition of Thermophilic Anaerobic Digestion of Waste Food by Long Chain Fatty Acids and Propionate
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Anaerobic digestion of autoclaved and untreated food waste.
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ژورنال
عنوان ژورنال: Sustainability
سال: 2021
ISSN: ['2071-1050']
DOI: https://doi.org/10.3390/su13126509