Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1975-07-15
1976-01-20
Wyse, Thomas G.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
423510, 75121, C02C 502
Patent
active
039336352
ABSTRACT:
Selenium is removed from solution in acidic waste water by treatment of the water with a metallic reducing agent. The invention is particularly effective for removal of selenium from zinc smelter effluent by reaction of the effluent with powdered zinc.
REFERENCES:
patent: 2889206 (1959-06-01), Hobin
patent: 2930678 (1960-03-01), Oberbacher et al.
patent: 3130012 (1964-04-01), Prater et al.
patent: 3433596 (1969-03-01), Wagenmann et al.
patent: 3575853 (1971-04-01), Gaughan et al.
Brown William S.
Fraser Donald R.
The United States of America as represented by the Secretary of
Wyse Thomas G.
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