Enhancing methane production from food waste fermentate using biochar: the added value of electrochemical testing in pre-selecting the most effective type of biochar

  title={Enhancing methane production from food waste fermentate using biochar: the added value of electrochemical testing in pre-selecting the most effective type of biochar},
  author={Carolina Cruz Viggi and Serena Simonetti and Enza Palma and Pamela Pagliaccia and Camilla Maria Braguglia and Stefano Fazi and Silvia Baronti and Maria Assunta Navarra and Ida Pettiti and Christin Koch and Falk Harnisch and Federico Aulenta},
  journal={Biotechnology for Biofuels},
BackgroundRecent studies have suggested that addition of electrically conductive biochar particles is an effective strategy to improve the methanogenic conversion of waste organic substrates, by promoting syntrophic associations between acetogenic and methanogenic organisms based on interspecies electron transfer processes. However, the underlying fundamentals of the process are still largely speculative and, therefore, a priori identification, screening, and even design of suitable biochar… 

Redox-Active Biochar and Conductive Graphite Stimulate Methanogenic Metabolism in Anaerobic Digestion of Waste-Activated Sludge: Beyond Direct Interspecies Electron Transfer

Graphite and pyrolytic biochar are two electrically active but functionally distinct carbon materials that have been widely used to enhance methanogenic performance of anaerobic digestion (AD) of

Stimulatory effects of biochar addition on dry anaerobic co-digestion of pig manure and food waste under mesophilic conditions

Among the three mechanisms of enhancing methanogenesis by biochar, the first two mechanisms did not function significantly in dry co-AD, while the third mechanism might play an important part in dry AD process.

Application of biochar as an additive to enhance biomethane potential in anaerobic digestion

Golisano Institute for Sustainability Rochester Institute of Technology Degree: Master of Science Program: Sustainable Systems Name of Candidate: Cecilia B. Frias Flores Title: Application of biochar

Biochar promotes methane production during anaerobic digestion of organic waste

Climate change and energy demand are calling for more sustainable fuels such as biomethane produced by anaerobic digestion of organic waste. Biochar addition to waste is presumed to enhance the



Use of biochars in anaerobic digestion.

Promoting Interspecies Electron Transfer with Biochar

The finding that biochar can stimulate DIET may be an important consideration when amending soils with biochar and can help explain why biochar may enhance methane production from organic wastes under anaerobic conditions.

Methanogenesis facilitated by electric syntrophy via (semi)conductive iron-oxide minerals.

It is suggested that Geobacter grew under syntrophic association with methanogens, and IET could occur via electric currents through (semi)conductive iron-oxide minerals (termed 'electric syntrophy') given the ubiquity of conductive minerals in nature.