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Updated: Aug 8, 2026

Removal of Arsenic Using a Cationic Polymer Gel Impregnated with Iron Hydroxide
Published on: June 28, 2019
[Removal of arsenic (II) by ferrate oxidation-coagulation from drinking water]
Bao-ling Yuan1, Kun-lin Li, Lin-li Deng
1College of Environment & Resources, Fuzhou University, Fuzhou 350002, China.
Abstract:
Ferrate is multi-function agent in water treatment and shows great oxidizing ability and excellent purifying effect. This experiment evaluated the performance of ferrate for arsenic removal. Experimental results show that the best rate of ferrate and arsenic (III) is 15:1, the efficiency of As removal can be achieved 98%, and the residual concentration of As3 + is < 0.05 mg/L. The optimum pH is 5.5 to approximately 7.5. The oxidative and coagulation time is 10 min and 30 min respectively. The salinity and hardness did not interfere with removal arsenic. This method is easy, very effective comparing with ferric method and KMnO4-Ferric method.
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