Electrochemical cover for inhibiting diffusion/infiltration...

Details Electrochemical cover for inhibiting diffusion/infiltration... Electrochemical cover for inhibiting diffusion/infiltration...

2005-03-15

2005-03-15

King, Roy (Department: 1742)

Chemistry: electrical and wave energy

Apparatus

Electrolytic

C204S263000, C204S284000

Reexamination Certificate

active

06866754

ABSTRACT:
Acidity in water leaching from a mass of sulphide tailings is prevented by de-oxygenating the water prior to entering the mass. A cover comprising an electrolytic cell, either galvanic or impressed-current, gives rise to a cathode reaction in which the redox voltage of the water drops to 003 volts or less. The cover can be thinner, and much less expensive, than an equally-effective non-reactive cover. The electrolyte is water contained in water-retaining soil, or a depth of water, lying over the cathode. The cathode is steel mesh, or a layer of graphite, spread over the whole mass of tailings.

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