Method for simultaneous removal of arsenic and fluoride from aqueous solutions
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United States of America Patent
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-
Sep 2, 2003
Grant Date -
Aug 22, 2002
app pub date -
Jun 27, 2001
filing date -
Jul 7, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of removing arsenic and fluoride from aqueous solutions in the same process is provided. Specifically, the pH of the aqueous solution is adjusted to a pH in the range of about 5 to 8. A combination of calcium salts, and ferric or aluminum salts are added to form insoluble arsenic and fluoride bearing solids. The solids are then removed from the aqueous solution.
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