Process and plant for treatment of wet material

Details Process and plant for treatment of wet material Process and plant for treatment of wet material

C - Chemistry, Metallurgy

02

F

C02F 11/12 (2006.01)

Patent

CA 2655281

The invention relates to a process for processing wet material, in particular sewage sludge, having a plurality of drying stages. At least one high-temperature drying stage 2 and at least one low-temperature drying stage 10 are provided, wherein the waste heat of the at least one high-temperature drying stage 2 is used for heating the at least one low-temperature drying stage 10. Great savings in energy and economic efficiency can thereby be achieved. In addition, the invention relates to a plant for carrying out the process.

L'invention concerne un procédé de traitement d'un produit humide, notamment des boues d'épuration, comprenant plusieurs étages de séchage. On utilise au moins un séchage à haute température 2 et au moins un séchage à basse température 10 et la chaleur perdue du ou des séchages à haute température 2 est utilisée pour chauffer le ou les séchages à basse température 10. Ainsi, on peut obtenir une grande économie d'énergie et un bon rendement. De plus, l'invention concerne une installation pour mettre en oevre ce procédé.

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