Biochar, a charcoal-like substance made by heating organic material in an oxygen-free environment, contains carbon dioxide captured from the atmosphere and can be recycled for other uses.

Biochar, a form of charcoal produced by heating agricultural waste without oxygen, is being studied as a potential tool for cleaning up chromium pollution at industrial sites, using the natural ...

The local authority wants to turn a former anaerobic digester into a unit producing biochar, a form of charcoal ... to turn a former anaerobic digestion plant in Coder Road, Ludlow, into a ...