Removal of oxygen from water
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United States of America Patent
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-
Oct 30, 2001
Grant Date -
N/A
app pub date -
Sep 22, 1999
filing date -
Mar 24, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
For alleviating acid mine drainage arising from oxygenated water passing through pyrite, the water is de-oxygenated in an intercepting protective layer, which comprises a mixture of grains of pyrite and grains of iron. The grain sizes, concentrations, etc are selected to create an ensemble of galvanic cells at the points of contact between the iron grains and the pyrite grains. The pyrite cathode material becomes cathode-protected, and the water becomes de-oxygenated, by the electrolytic action.
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