Stabilization of bio-organic sludges

Details Stabilization of bio-organic sludges Stabilization of bio-organic sludges

C - Chemistry, Metallurgy

02

F

C02F 11/00 (2006.01) A01K 1/01 (2006.01) C02F 3/12 (2006.01) C02F 11/16 (2006.01) C05F 1/00 (2006.01) C05F 7/00 (2006.01)

Patent

CA 2215667

The stabilization of bio-organic sludges such as those derived from sewage, meat works or dairy works effluent, against putrefication or microbial decomposition is disclosed. The stabilization is achieved by adding a bio- organic material, such as coir fibre, straw, flax and/or ground bark and/or a source of carbohydrate. Preferably, the final concentration of water in the product is at least 15 % by weight water, with a preferred upper limit of 70 % by weight water.

L'invention porte sur la stabilisation de boues bio-organiques telles que celles dérivées des effluents d'égouts, des déchets de la transformation de la viande ou des produits laitiers, dans le but d'éviter la putréfaction ou la décomposition microbienne. On obtient la stabilisation en ajoutant une substance bio-organique, telle que la fibre de coir, la paille, le lin et/ou l'écorce pilée et/ou une source d'hydrate de carbone. De préférence, la concentration finale d'eau dans le produit est d'au moins 15 % en poids, la limite supérieure étant de préférence 70 % en poids.

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