The growing concern over the environmental impact of waste disposal, re-use of waste, recycling of materials, transport of waste, waste treatment, clean-up of contaminated soil, re-use of cleaned soil and utilization of secondary materials in construction has led to an increased demand for leaching and/or extraction procedures that would be able to assess the environmental consequences of these different activities. These operationally-defined procedures are usually developed within a specific field, without much interaction outside that field. When the use and development of such procedures are not coordinated in a wide context and harmonized, it may result in the multiplication of different tests which may lead to an almost unmanageable situation with respect to drafting regulations and evaluating environmental risks.
The overall objective of the work is to provide a technical basis for discussion about harmonization of leaching /extraction tests developed in very diverse fields such as soil, contaminated soil, sediment, sludge, compost, waste, stabilized waste, construction materials, drinking water pipes and impregnated wood, and to provide recommendation for test use, test modification, unified data reporting and presentation, and implementation of tests in the various fields.
The materials for the study have been sampled and prepared for testing. The spreadsheets for data handling have been prepared and distributed to the partners. The experimental programme of carrying out leaching tests has started. The first complete set of information is available for preserved wood.
Funding SchemeCSC - Cost-sharing contracts
SL7 2HD Marlow - Buckinghamshire