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.
Verve Integrated Wood Processing (IWP) Plant Narrogin, Western Australia
Steve Schuck, Stephen Schuck and Associates Pty Ltd
, Bioenergy Australia Manager, February 12, 2007