Process for the removal of pentavalent arsenic from water

Liquid purification or separation – Processes – Ion exchange or selective sorption

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210669, 210670, 210683, 210758, 210911, B01D 1500, C02F 128

Patent

active

059085576

ABSTRACT:
A process for the separation of pentavalent arsenic from an aqueous solution using an N-alkyl pyridinium-containing adsorption medium is disclosed. An oxidizing medium and process for the oxidation of trivalent arsenic to pentavalent arsenic with removal of the pentavalent arsenic so formed is also disclosed.

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Frey, Michelle M. et al., National Compliance Assessment and Costs for the Regulation of Arsenic in Drinking Water, University of Colorado at Boulder (Jan. 7, 1997).

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