Remediation of Brownfield Land

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Remediation of Brownfield Land

Author: Steve Angel, Keith Bradshaw, Dr Chris A Clear, Dr David Johnson, Dr Martyn Kenny, Dr Bill W Price, Michael Southall | Size: 1.87 MB | Format: PDF | Publisher: BCA | Year: 2004 | pages: 63 | ISBN: 0721016030

This document provides guidance on the use of Stabilisation/Solidification (S/S) for the remediation of land affected by contamination, as commonly found on brownfield land or derelict sites. Cement and lime are widely used for stabilising natural soils to improve their engineering properties, and specifications and extensive guidance are available. Although S/S can be considered a natural extension of soil stabilisation techniques, it is more difficult to design, plan and implement: this is because of the potentially complex nature of soils and contaminants within brownfield or derelict sites. Accepting that the use of S/S is not as widespread as soil stabilisation, it has regularly been successful in remediating many types of derelict or contaminated land. A necessary precursor to any remediation is a risk assessment to establish the extent and nature of any hazardous contamination and so develop a remediation strategy to manage the risk. It is at this stage that S/S is assessed as a remediation option. Where S/S is found practicable, a full remediation design is carried out through a combination of laboratory and site trials before full site implementation. This document is an overview of the whole process, from the initial risk assessment to completion of the remediation. It is for general guidance only and must not be considered a substitute for the necessary site-specific documentation. All remediation work undertaken on land affected by contamination must be carried out to a site-specific working plan, drawn up by skilled professionals in liaison with main contractors or specialist subcontractors. This site specific working plan includes a comprehensive set of remediation objectives that are agreed with the Regulator appropriate to the site. S/S is a useful technique for treating particular wastes before disposal to landfill and parts of this document may be helpful for those involved with waste treatment. However, the general use of S/S for waste treatment is such a large and complex topic that it is outside the scope of this guidance.

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