Method for removing anions from water

Details Method for removing anions from water Method for removing anions from water

1994-02-10

1995-10-10

Spear, Frank

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210651, B01D 6116

Patent

active

054568404

ABSTRACT:
A method for removing anions from water is provided. A complexing agent, such as a cationic polyelectrolyte, is added to untreated water. The cationic polyelectrolyte complexes with anions, such as chromate, and the complex if filtered out of the water. The complex is then treated with a regeneration agent, such as barium chloride or lead chloride to precipitate ions and to regenerate the complexing agent. The regenerated complexing agent can be reused for water treatment.

REFERENCES:
patent: 4089778 (1978-05-01), Gauger
patent: 5302290 (1994-04-01), Tucker et al.

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