Method of sludge disposal related to the hot water extraction of

Details Method of sludge disposal related to the hot water extraction of Method of sludge disposal related to the hot water extraction of

1975-05-27

1977-02-15

Gantz, Delbert E.

Mineral oils: processes and products

Products and compositions

Lubricating oils

210 83, C10G 104

Patent

active

040081460

ABSTRACT:
A method for reducing the sludge content of a retention pond associated with the hot water process for extracting bitumen from tar sands which comprises admixing a sludge stream containing at least 12% solids by weight with a hot water extraction process waste water stream containing at least 20% sand; settling the mixture in a settling zone to form an upper layer substantially reduced in mineral matter and a lower layer comprised of a sand-sludge mixture and dispersing said lower layer over a sand pile zone to provide additional sand layers thereon containing at least a part of the sludge in the interstices of said additional sand layers.

REFERENCES:
patent: 3392833 (1968-07-01), Baillie
patent: 3502566 (1970-03-01), Raymond et al.
patent: 3526585 (1970-09-01), Camp

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