Recovery operations are those that allow waste to play a useful role by replacing other materials that would otherwise have been used to perform a certain function. Recovery includes material recovery (recycling) and energy recovery.
Recycling is a form of recovery, with the specific aim of recovering material and not energy. In fact, according to the legislation, recycling consists of operations that involve the treatment of waste in order to obtain products, materials or substances, while excluding operations aimed at recovering energy and the treatment of waste to obtain materials to be used as fuels.
Chemical agent that tends to yield electrons to another substance.
Refuse Derived Fuel (RDF)
Solid fuel produced from non-hazardous, urban or special waste, through treatments aimed at maximizing its energy content, reducing the content of non-combustible materials (glass, metals, aggregates, etc.) and the organic fraction, and ensuring compliance with standards regulatory. It can be used in waste-to-energy plants or in co-combustion in cement factories or thermoelectric plants.
Operations through which an asset, which has not yet become waste, is reused for the same purpose for which it was conceived.
Residual Solid Waste (RSW)
When separate collection is carried out, a part of the waste does not find its place in the different fractions collected separately; this amount of material goes under the name of Residual Solid Waste (RSW).
In the composting process, the ripening phase is the final one, in which, once the biological degradation reactions of the organic substance have taken place, the compost stabilizes and the temperature drops down to the ambient value.