Mine tailings replacement

Details Mine tailings replacement Mine tailings replacement

1995-08-22

1996-08-06

Bentley, Stephen C.

Hazardous or toxic waste destruction or containment

Containment

Geologic, marine, or extraterrestrial storage and containment

B09B 100

Patent

active

H00015849

ABSTRACT:
Mine tailings and similar materials are disposed of by replacing the tailings in underground mineworks including the shafts, adits and drifts by forming a slurry of tailings using dredging or similar mixing processes and pumping the slurry to the mineworks. Cementitious materials may be added to selected quantities of the tailings slurries to form cement plugs for placement at selected intervals in the mineworks to minimize connectivity of the mineworks shafting, adits and drifts. The mineworks may be dewatered to provide a source of water for the slurrification process and the water may be reused after separation from the slurry. The disposal process provides a convenient way of replacing mine tailings in a repository of similar mineralogy and at least partially eradicates abandoned mineworks, including shafting, adits and drifts, which otherwise might require continual monitoring and dewatering.

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