A method for pretreating sludge of petroleum origin in readiness for destruction in an incinerator, and a system for implementing the method.

摘要

A method and a system for pretreating sludge of petroleum origin which includes solid aggregates (25), organics and water, to separate a product which can be disposed of in an incinerator, wherein the sludge (2) is fluidized by heating it to a temperature in the 70 to 90 centigrade degrees range and keeping it in a stirred state, and the solid matter (25) is separated from the sludge (2) and scrubbed in countercurrent until the water content drops to a proportion of 20% or less of its weight. Among the advantages afforded is a reduction of the risk of thermal shock to the incinerator burning furnace.