Thanks Josh for the update and link. It looks like an expanding field of discovery.
Regards Crispin FYI - at Univ. of Colorado-Boulder (USA) we have a consortium of scientists and engineers studying "activated-carbon-type" applications of biochar (e.g. generated from cookstoves, gasifiers, kilns, etc.). We focus primarily on water quality and water treatment applications - e.g. decentralized household and community water treatment systems, in-situ permeable barriers for groundwater remediation, storm water runoff, etc. We look mainly at sorption of synthetic organic compounds (e.g. pesticides, pharmaceuticals, fuel compounds, etc.), and to a lesser extent metals and inorganics (e.g. Hg is well sorbed as you indicate below....). See a recent write-up by the IBI for more info and links: http://www.biochar-international.org/profile/water_filtration and feel free to contact me any time! Josh
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