Recent advances in co-digestion conjugates for anaerobic digestion of food waste

Household biogas technology in the cold climate of low-income countries: a review of sustainable technologies for accelerating biogas generation

“…However, physical pretreatment involving mechanical breakdown, thermal treatment, microwave treatment, ultrasound treatment of substrates, chemical pretreatment using acids or alkaline chemicals, and biological pretreatment employing microbes and enzymatic processes can be utilized to reduce particle size, increase solubility, and increase surface area, which can ultimately result in higher biodegradability and bioavailability for enhanced digestion [84]. Co-digestion enhances biogas yield by balancing the C:N ratio, micronutrients, buffering capacity, and dilution of inhibitory substances present in mono-feedstock [85]. Recent novel approaches for the use of biochars in the psychrophilic AD process have also shown remarkable increases in biogas yield.…”

Enhancement of Anaerobic Digestion from Food Waste via Ultrafine Wet Milling Pretreatment: Simulation, Performance, and Mechanisms

“…As a result, the solubility of carbohydrates is enhanced without the requirement of enzyme addition [16]. Additionally, researchers have found that the grinding pressure minimally affects the growth of existing microorganisms in the original matrix, and smaller particle sizes in reactors result in an increase in the proportion of hydrolytic bacteria such as Porphyomonadaceae and Bacteoidales_UCG-001 through microbial investigations [17][18][19]. However, previous studies have not investigated the changes in particle size during continuous grinding processes or the performance of anaerobic digestion of FW at micron scales.…”