Biogas production is an established sustainable process for simultaneous generation of
renewable energy and treatment of organic wastes. The increasing interest of utilizing …

Biogas production is rising in the context of fossil fuel decline and the future circular
economy, yet raw biogas requires purification steps before use. Here, we review biogas …

Biogas is a sustainable energy vector with diverse input sources (eg landfills and anaerobic
digestion of waste materials, wastewater treatment sludge, manure from animal production …

Biogas from anaerobic digestion of organic wastes or energy crops has proven to be a
valuable alternative energy source both climate-neutral and sustainable on a global scale …

Biogas produced from organic wastes contains energetically usable methane and
unavoidable amount of carbon dioxide. The exploitation of whole biogas energy is locally …

Biogas is mainly produced from the anaerobic fermentation of biomass, containing methane
with an extensive range between about 50% and 70%. Higher methane content biogas has …

Ex-situ biomethanation is an emerging technology that facilitates the use of surplus
renewable electricity and valorizes carbon dioxide (CO 2) for biomethane production by …

Biogas upgrading technologies have received widespread attention recently and are
researched extensively. Microbial biogas upgrading (biomethanation) relies on the microbial …

This study investigated in-situ and ex-situ biological methanation strategies for biogas
upgrading potential. The addition and circulation of hydrogen with a ceramic gas diffuser …

Surplus energy out of fluctuating energy sources like wind and solar energy is strongly
increasing. Biological hydrogen (H 2) methanation (BHM) is a highly promising approach to …