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Indicators for determination of stability of composts and recycled organic wastes

Abstract : Spreading may constitute a method of organic wastes recycling through agricultural use. Nevertheless organic wastes like green wastes, wastewater treatment sludge, manure or biowaste can sometimes exhibit properties like material heterogeneity, moisture, pathogens concentrations and biodegradable organic matter content, which prevent their storage, their transport and their direct spreading. Composts, which are also concerned by spreading, can also contain biodegradable organic matter that can induce quick development of biochemical transformations, which may lead to harmful effects like odour and gaseous emissions during transport and storage, and depressive effects on plant growth after land application. That is why the characterization of the stability or maturity of compost and recycled organic wastes is an important issue. Stability may be described as a slow down of microbial activity within the product and the achievement of a very low biodegradability of organic matter. On the other hand, maturity is usually associated with plant growth potential and phytotoxicity. Numerous papers in composting literature proposed stability indicators. The aim of this paper is to summarize the existing indicators and to appreciate their reliability in term of the evaluation of organic matter stability.
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Submitted on : Friday, May 15, 2020 - 12:21:22 PM
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  • HAL Id : hal-02587896, version 1
  • IRSTEA : PUB00019756



A. de Guardia, A. Trémier, José Martinez. Indicators for determination of stability of composts and recycled organic wastes. Resource Recovery and Reuse in Organic Solid Waste Management, 2004, pp.338-376. ⟨hal-02587896⟩



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