Treating liquids with pH adjuster-based system
AssigneeMagnesium Elektron Limited
InventorsAnatoly I. Bortun, Mila N. Bortun, Francis J. Fischer
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Abstract
The invention features a system for treating liquid including a liquid treatment device comprising adsorbent media for removing a substance from liquid and a pH adjuster device located upstream of the liquid treatment device relative to a direction of flow of the liquid. The pH adjuster device contains particulate or solid state pH adjuster material capable of releasing H or OH groups into the liquid or consuming H or OH groups from the liquid effective to raise or lower the pH of the liquid while it passes through the media. The pH adjuster may include acidifier or basifier material. Also featured is a method of using the device to remove a substance from liquid by adsorption and/or ion exchange.
Claims13
A method for removing a substance from liquid, comprising:
- passing liquid containing a substance to be removed into a pH adjuster device, said pH adjuster device containing solid state pH adjuster material;
- releasing from said pH adjuster material H or OH groups into the liquid or consuming with said pH adjuster material H or OH groups from the liquid effective to raise or lower the pH of the liquid, at a generally fixed location relative to a liquid treatment device;
- passing the liquid having the raised or lowered pH into said liquid treatment device that is located downstream of said pH adjuster device relative to a direction of flow of the liquid, said liquid treatment device comprising adsorbent media;
- and
- removing the substance from the liquid with said media by a mechanism selected from the group consisting of adsorption, ion exchange and combinations thereof.
Dependencies are inferred from the claim text.