Biomethane generation and CO2 recovery through biogas production using brewers' spent Grains

Lins, Leonardo Pereira; Martinez, Daiana Gotardo; Furtado, Andréia Cristina; Padilha, Janine Carvalho

doi:10.1016/j.bcab.2022.102579

Cited by 8 publications

(2 citation statements)

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“…Some drawbacks limit the potential of anaerobic digestion. An illustrative example is the formation of hydrogen sulfide, a toxic gas, during the anaerobic digestion of sulfur-rich by-products [33], including those from the biochemical biorefinery, such as spent grains [389], stillage [390], or vinasse [391,392]. Hydrogen sulfide and its salts inhibit methanogenesis, due to high toxicity toward methanogenic consortia [393].…”

Section: Nitrogen Sulfur and Phosphate Recovery During The Anaerobic ...mentioning

confidence: 99%

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Closing the Nutrient Loop—The New Approaches to Recovering Biomass Minerals during the Biorefinery Processes

Constantinescu-Aruxandei

Oancea

2023

IJERPH

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The recovery of plant mineral nutrients from the bio-based value chains is essential for a sustainable, circular bioeconomy, wherein resources are (re)used sustainably. The widest used approach is to recover plant nutrients on the last stage of biomass utilization processes—e.g., from ash, wastewater, or anaerobic digestate. The best approach is to recover mineral nutrients from the initial stages of biomass biorefinery, especially during biomass pre-treatments. Our paper aims to evaluate the nutrient recovery solutions from a trans-sectorial perspective, including biomass processing and the agricultural use of recovered nutrients. Several solutions integrated with the biomass pre-treatment stage, such as leaching/bioleaching, recovery from pre-treatment neoteric solvents, ionic liquids (ILs), and deep eutectic solvents (DESs) or integrated with hydrothermal treatments are discussed. Reducing mineral contents on silicon, phosphorus, and nitrogen biomass before the core biorefinery processes improves processability and yield and reduces corrosion and fouling effects. The recovered minerals are used as bio-based fertilizers or as silica-based plant biostimulants, with economic and environmental benefits.

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Section: Nitrogen Sulfur and Phosphate Recovery During The Anaerobic ...mentioning

confidence: 99%

“…grains [389], stillage [390], or vinasse [391,392]. Hydrogen sulfide and its salts inhibit methanogenesis, due to high toxicity toward methanogenic consortia [393].…”

Section: Nitrogen Sulfur and Phosphate Recovery During The Anaerobic ...mentioning

confidence: 99%