Dr Colin Hills Director of the Centre for Contaminated Land Remediation at the University of Greenwich
Scope
In the first part of this occasional series of articles on s/s technology, I introduced stabilisation/solidification (s/s) as a risk management strategy. This was done in the context of the Environment Agency Guidance of 2004 [1] and with reference to recent projects, including the on-going $400M Sydney Tar Ponds remedial operation in Nova Scotia, Canada.
In November 2011 CPRE published a new report: Building on a small island: why we still need the brownfield first approach, produced by the planning consultancy Green Balance. The report presents evidence which demonstrates overwhelmingly that existing national planning policy on prioritising the development of ‘brownfield first’ has been successful and that it should be retained.
Scope
Contaminated soils and wastes may be toxic, carcinogenic or mutagenic and require remediation by an appropriate risk-management strategy. There is a successful track record for treating contaminants by stabilisation/solidification (S/S) spanning more than two decades and this is discussed in this article.
This fifth and final part of an occasional series on the treatment of waste and soil by Dr Colin Hills, Director of the Centre for Contaminated Land Remediation at the University of Greenwich, explores the durability and aging of S/S-treated material under various environmental loads operating in their environment of service and their long-term monitoring requirements. He is joined by Edward Bates, whom has recently retired from the US Environmental Protection Agency, and Dr Peter Gunning of Carbon8 Systems Ltd.
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