Review of biochar role as additive in anaerobic digestion processes

RENEWABLE & SUSTAINABLE ENERGY REVIEWS

卷:131

Review

Chiappero, Marco¹  Norouzi, Omid²  Hu, Mingyu³  Demichelis, Francesca¹  Berruti, Franco⁴  Di Maria, Francesco²  Masek, Ondrej³  Fiore, Silvia¹ 

[1] Politecn Torino, DIATI Dept Engn Environm Land & Infrastruct, Corso Duca Abruzzi 24, I-10129 Turin, Italy

[2] Univ Perugia, Dept Engn, LAR Lab, Perugia, Italy

[3] Univ Edinburgh, UK Biochar Res Ctr, Sch Geosci, Edinburgh, Midlothian, Scotland

[4] Western Univ, Inst Chem & Fuels Alternat Resources ICFAR, Chem & Biochem Engn Dept, London, ON, Canada

关键词: Anaerobic digestion;    Biochar;    Bioenergy;    Biomass;    Circular economy;    Waste;   

DOI  :  10.1016/j.rser.2020.110037

来源: Elsevier

【 摘 要 】

Anaerobic digestion (AD) could be considered as a mature technology and nowadays it can still play a pivot role because of the urgent need to provide renewable energy sources and efficiently manage the continuously growing amount of organic waste. Biochar (BC) is an extremely versatile material, which could be produced by carbonization of organic materials, including biomass and wastes, consistently with Circular Economy principles, and tailor-made for specific applications. The potential BC role as additive in the control of the many wellknown critical issues of AD processes has been increasingly explored over the past few years. However, a clear and comprehensive understanding of the connections between BC and AD is still missing. This review paper analyses and discusses significant references (review articles, research papers and international databases and reports), mostly published in the last 10 years. This review is aimed at addressing three key issues related to the better understanding of the BC role in AD processes: 1. Investigation of the influence of BC properties on AD performances and of their ability to counteract its main challenges; 2. Assessment of the optimal BC production chain (i.e. feedstock-pyrolysis-activation) to achieve the desired features; 3. Evaluation of the economic and environmental advantages connected to BC use in AD processes, compared to conventional solutions applied to address AD challenges.

【 授权许可】

Free