C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 17/00 (2006.01) C02F 1/02 (2006.01) C02F 11/12 (2006.01) C02F 11/14 (2006.01) C02F 11/18 (2006.01) C05F 3/00 (2006.01) C05F 3/02 (2006.01) C05F 7/00 (2006.01)
Patent
CA 2084846
A method and product for sterilizing and drying waste products such as plant sludge, animal excrement and process wastes wherein the waste material is first settled or dewatered to a moisture content between 4% to 60% and then blended in blender (1) and reacted in reaction chamber (3) with alkaline earth metal oxides in the presence of an atmosphere of carbon dioxide, and in the absence of the oxygen. After the sludge is blended with the alkaline earth oxides, the carbon dioxide is removed so that air or oxygen will contact the blended constituents. A violent exothermic reaction takes place between the water in the constituents and the alkaline earth oxides, causing a rapid rise in temperature of the constituents and thus sterilizing the constituents to produce a safe and usable end product.
Mcfadden Fincham
Willow Technology Inc.
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