Summary
This narrative review examines biogas and biomethane production from agricultural, animal, industrial and food wastes through anaerobic digestion within a circular economy framework. The authors discuss modern trends and control strategies for optimising these processes, with particular emphasis on livestock waste utilisation and digestate reuse as fertiliser. The review highlights environmental advantages including greenhouse gas emission reductions compared to conventional fossil fuels, positioning biogas and biomethane as promising renewable energy sources.
UK applicability
The review's focus on livestock waste valorisation and digestate reuse is highly relevant to UK farming, where anaerobic digestion is an established practice supported by policy incentives. UK applicability depends on whether the review examines temperate climate systems and EU/UK-specific regulatory contexts, which cannot be determined from the abstract alone.
Key measures
Greenhouse gas emissions reductions; biogas and biomethane yield and production efficiency; waste treatment effectiveness; fertiliser value of digestate
Outcomes reported
The review evaluated modern trends, processes and strategies for controlling biogas and biomethane production from various waste streams. It examined the use of livestock waste in anaerobic digestion and the reuse of digestate as fertiliser, alongside the potential of biogas and biomethane as renewable energy sources.
Topic tags
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