Dike building material comprising sand and treated sludge

Details Dike building material comprising sand and treated sludge Dike building material comprising sand and treated sludge

C - Chemistry, Metallurgy

02

F

196/24, 362/52

C02F 1/56 (2006.01) B01D 36/04 (2006.01) C02F 1/52 (2006.01) E02B 7/06 (2006.01) E02D 17/18 (2006.01)

Patent

CA 1123977

ABSTRACT OF THE DISCLOSURE An improvement to the basic concept of storing sludge (i.e., fines) in the interstices between the sand grains of a dike associated with a tailings pond is disclosed. The sludge is first treated with hydrolyzed starch flocculant to obtain improved permeability and shear strength characteristics. Thereafter, the treated sludge is mixed with sand to obtain the fines-containing dike building material which is stronger than that obtained by mixing untreated sludge with sand and thus permits a higher dike in which to store increased quan- tities of fines.

338919

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