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Competitive effects of phosphate, silicate, sulfate, and carbonate on As(III) and As(V) removal at pH ∼7.2 have been investigated to test the feasibility of Fe(II) aq and hydroxylapatite crystals as inexpensive and potentially efficient agents for remediation of contaminated well-water, using Bangladesh as a type study. Arsenic(III) removal ∼50–55% is achieved, when Fe(II) aq oxidizes...
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