Biochar generated as a by-product of combined heat and power gasification is classified as waste, for which the UK does not currently have a safety protocol for use in the open environment. The UEA is working with the Environment Agency to determine environmental tolerance limits, in order to assess potential environmental risks (ex: PAH contamination). My preliminary study aimed to measure any negative plant growth effects by amended soil with high concentrations of biochar under controlled laboratory conditions.
Gasifier Charcoal as a Substitute for Vermiculite in Container Growing Media
Tom Miles, August 22, 2009 P Pine Seedlings in 25% Biochar
Our second trial of biochar as a substitute for vermiculite in container media for growing tree seedling has proved successful. These tests are by a private nursery to determine if charcoal from a gasifier heating system can be used in container growing media.
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Conversion of Municipal Solid Waste (MSW) into Charcoal & Producer Gas
Jalaj Kr. Chaturvedi, Shivam Enterprises, Kolkata, April 3, 2007
[img_assist|nid=192|title=Charcoal Pellets from MSW|desc=|link=node|align=center|width=400|height=301]
Phillip Small described how he uses an inverted downdraft gasifier inspired by Tom Reed and Ray Garlington to make charcoal for soil fertility experiments.
