Thermophilic anaerobic digestion of pasteurised food wastes and dairy cattle manure in batch and large volume laboratory digesters: Focussing on mixing ratios

Mesophilic anaerobic co-digestion of aloe peel waste with dairy manure in the batch digester: Focusing on mixing ratios and digestate stability

“…Until recently, various biomass wastes such as crop waste , forestry waste (Zheng et al, 2015), fruit waste (Dias et al, 2014), vegetable waste (Belle et al, 2015), food waste (Zarkadas et al, 2015;El-Mashad and Zhang, 2010), and municipal solid wastes (Macias-Corral et al, 2008) have been used to perform a anaerobic co-digestion with DM. The codigestion of DM with three crop straw residues (SRs) under five mass mixing ratios (SRs/DM) demonstrated that a high methane content and the highest cumulative biogas yield were achieved at the SRs/DM mass mixing ratios 1:9 and ratio 5:5, respectively .…”

Food Waste Composting in a High Rate Continuous Feed Drum Reactor: Startup and Carbon Balance Analysis

“…Human activities are always generating wastes. For example, for 1 ton of cereal product 1.5–3 tons of cellulose rich waste is left behind, 50% of food produced in the world annually ends up as waste dumped in landfill sites, 30–60% of live weight of an animal is converted, during slaughter, into waste, while for 1 ton of olive oil more than 6 tons of waste is produced . Humans are extracting raw materials from finite sources that are converted into marketable products for their well‐being and to cover, in some cases, imaginary needs.…”

Technical and economic feasibility of a solar-bio-powered waste utilization and treatment system in Central America

“…Based on its operating temperature, AD can be categorized into thermophilic and mesophilic digestion. The thermophilic digestion occurs at a temperature of around 50 C, while the mesophilic digestion is at a temperature of approximately 35 C. Numerous studies have demonstrated that thermophilic cultivation can enhance AD performance by shortening retention time and thus requiring smaller vessel sizes, improving odor control, eliminating pathogens, increasing biogas production, and reducing total solids in the waste streams (Aitken et al, 2005;Sharma et al, 2013;Suryawanshi et al, 2010;Zarkadas et al, 2015). However, thermophilic digestion requires a certain amount of thermal energy to maintain the temperature, which may lead to an unfavorable energy balance for small-scale operations, even in the tropical temperatures of Central America.…”