Process for exothermal treatment and recovery of solid,...

B - Operations – Transporting – 09 – B

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B09B 3/00 (2006.01) A62D 3/30 (2007.01) B09C 1/08 (2006.01) C02F 11/00 (2006.01) C02F 11/10 (2006.01) C02F 11/14 (2006.01)

Patent

CA 2712100

The present invention refers to a process for exothermal treatment and recovery of masses comprising: urban solid waste (USW-), including differentiated and non-differentiated damp waste and non-differentiated waste of vegetable origin; sludge generated by industrial and non-industrial water treatment; solid, semi- solid, pasty residue and/or sludge residue coming from industrial, agricultural and food-processing operations; soils and inert materials contaminated by organic matrices; solid, semi-solid, pasty residue and/or sludge residue of hydrocarbon compounds, including asphalt and organic-chemical compounds; contaminating animal excrements, such as those of poultry and/or swine. In particular, said process envisages the use of an exothermal reaction produced by mixing the mass to be treated with a mixture of calcium oxides (CaO) and/or calcium hydroxides Ca (OH) 2, in the presence of an inert catalyst moistened with water, in the absence of oxygen using the charcoal-pile technique.

La présente invention concerne un procédé permettant le traitement exothermique et la récupération de masses comprenant des déchets urbains solides, y compris des déchets humides triés et non triés et des déchets non triés d'origine végétale; les boues provenant du traitement des eaux industrielles et non industrielles; les restes pâteux solides et semi-solides et/ou les restes de boues provenant d'opérations de transformation des produits alimentaires, d'opérations agricoles et industrielles; les sols et les matériaux inertes contaminés par des matrices organiques; des restes pâteux solides et semi-solides et/ou des restes de boues de composés d'hydrocarbures, parmi lesquels l'asphalte et des composés organiques-chimiques; les excréments d'origine animale contaminants, tels que les excréments des volailles et/ou des porcs. Plus particulièrement, le procédé décrit dans cette invention consiste à utiliser une réaction exothermique produite par mélange de la masse à traiter avec un mélange d'oxyde de calcium (CaO) et/ou d'hydroxydes de calcium Ca (OH) 2, en présence d'un catalyseur inerte humidifié avec de l'eau, en l'absence d'oxygène selon la technique des piles de charbon.

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