WG 1 Abstract - Biochar production and characterisation

Working Group 1 will focus on the relationship between production parameters, material properties and the generalization of effects after soil application that can be deduced from the respective properties. This is imperative given the tremendous variations in input materials, available technologies and production conditions, to achieve predictable effects of well-defined Biochars. Very important is the persistence of Biochars, providing a long-term sink for atmospheric carbon dioxide in the soil. In addition to reducing greenhouse gas emissions, Biochar application to soil has the potential to decrease environmental pollution, such as the emission of ammonia and nitrous oxide or N leaching. Special emphasis will also be paid to the production of potentially toxic compounds such as polycyclic aromatic hydrocarbons or dioxins during Biochar production. A common problem is still the lack of a clear definition of Biochar. The groups involved in this COST Action have a strong background in many analytical methods. It is imperative and an utmost urgent task for further Biochar production, use and implementation, to define basic characteristics and thresholds for Biochar on the basis of selected processing and material properties. Possible parameters for the production of Biochars are temperature, pressure and residence time during the process of carbonization. Elemental composition, element ratios, surface area, aromatic carbon content and absence of toxic compounds are the most important physico-chemical variables to characterize Biochars.

In order to participate in the activities of Work Group 1, please send an email to wg1(at)european-biochar.org