Arsenic Removal with Iron(II) and Iron(III) in Waters with High Silicate and Phosphate Concentrations

C. Roberts, Linda; J. Hug, Stephan; Ruettimann, Thomas; Morsaline Billah, Md; Wahab Khan, Abdul; Tariqur Rahman, Mohammad

doi:10.1021/es0343205

Public

Arsenic Removal with Iron(II) and Iron(III) in Waters with High Silicate and Phosphate Concentrations

Published in Environmental Science & Technology • Nov 18, 2003

Authors:

Linda C. Roberts

Stephan J. Hug

Thomas Ruettimann

Abstract

Arsenic removal by passive treatment, in which naturally present Fe(II) is oxidized by aeration and the forming iron(III) (hydr)oxides precipitate with adsorbed arsenic, is the simplest conceivable water treatment option. However, competing anions and low iron concentrations often require additional...

Subject

Chemistry

Arsenic

Coprecipitation

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