Method of creating landfill from red mud

Details Method of creating landfill from red mud Method of creating landfill from red mud

1980-06-03

1981-06-02

Leppink, James A.

Hydraulic and earth engineering

Subterranean waste disposal, containment, or treatment

With treatment of waste

405271, B09B 500, G21F 900

Patent

active

042708753

ABSTRACT:
This invention relates to a method of using "red mud", i.e., slurry by-products from the Bayer process for extracting alumina from bauxite, for creating landfill. The red mud is first filtered to reduce its water content in the conventional manner and then mechanically compressed and dewatered until it has a void ratio less than 1.5, preferably, 1.0 to 1.5, and has the form of solid cakes or other bodies. The red mud cakes are easy to handle and are useful as a landfill material for reclaiming land when applied with light tamping or compacting.

REFERENCES:
patent: 2768120 (1956-10-01), Rietema
patent: 2904835 (1959-09-01), Thomas
patent: 3714792 (1973-02-01), Murphy et al.
patent: 3852967 (1974-12-01), Stewart et al.
Kirk-Othmer Encyclopedia of Chemical Technology, vol. 21, Second Edition, 1968, pp. 648-649.

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