Biochar, Tool for Climate Change Mitigation and Soil Management

Simon Shackley, Saran Sohi, Rodrigo Ibarrola Esteinou, Jim Hammond, Ondrej Masek, Peter Brownsort, Andrew Cross, Miranda Prendergast-Miller, Stuart Haszeldine

Research output: Chapter in Book/Report/Conference proceedingChapter (peer-reviewed)


Biochar is the solid remains of any organic material that has been heated to at least 350oC in a zero-oxygen or oxygen-limited environment, which is intended to be mixed with soils. If the solid remains are not suitable for addition to soils, or will be burned as a fuel or used as an aggregate in construction, it is defined as char not biochar. There is a very wide range of potential biochar feedstocks, e.g., wood waste, timber, agricultural residues and wastes (straws, bagasse, manure, husks, shells, fibers, etc.), leaves, food wastes, paper and sewage sludge, green waste, distiller’s grain, and many others. Pyrolysis is usually the technology of choice for producing biochar, though biomass gasification also produces smaller char yields. Syngas and pyrolytic bio-liquids, which have a potential use as energy carriers, are produced alongside biochar.
Original languageEnglish
Title of host publicationEncyclopedia of Sustainability Science and Technology
EditorsRobert Meyers
Place of PublicationNew York
PublisherSpringer-Verlag GmbH
Pages913 - 961
Number of pages48
ISBN (Print)978-0-387-89469-0
Publication statusPublished - 1 Dec 2012


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