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Application of sewage sludge to agricultural land may be beneficial because it can improve the physical, chemical and biological properties of soils which may enhance crop growth (BECK et al. 1996). To achieve this, sludge application cannot just be a way of disposing of the sludges but a deliberate application in order to recycle nutrients and to restitute organic matter to soils in order to prevent over-exploitation of agricultural soils in the Community (MARMO 2000). In addition the use of sludge as a fertilizer would decrease the amounts of chemical fertilizers needed in agriculture (TIDESTRÖM 1997) and supply micro-nutrients which. | Department of the Environment Industry Profile Chemical works organic chemicals manufacturing works Industry Profile sponsored by Contaminated Land and Liabilities Division Industry Profiles together with the Contaminated Land Research Report series are financed under the Department of the Environment s contaminated land research programme. The purpose of these publications is to provide regulators developers and other interested parties with authoritative and researched advice on how best to identify assess and tackle the problems associated with land contamination. The publications cannot address the specific circumstances of each site since every site is unique. Anyone using the information in a publication must therefore make appropriate and specific assessments of any particular site or group of sites. Neither the Department or the contractor it employs can accept liabilities resulting from the use or interpretation of the contents of the publications. The Department s Contaminated Land Research Report series deals with information needed to assess risks procedures for categorising and assessing risks and evaluation and selection of remedial measures. General guidance on assessing contaminated land and developing remedial solutions which is complementary to the Department s publications is provided by the Construction Industry Research and Information Association CIRIA . Crown copyright 1995 ISBN 1 85112 275

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