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A tent-like kiln is placed over woody waste material to change it into biochar.

A tent-like kiln over woody waste material

A tent-like kiln is placed over woody waste material to pyrolyze it into biochar. Here, a small field unit is being tested for its biochar yield, smoke production, and ease of use. Approximately 250 pounds of biochar was produced in this run.

Credit: Kenneth Faires, University of Washington

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July 2012

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