Figure 1. Effect of pH on the removal of arsenic species; (a) As(V), (b) As(III)

From

Effect of pH and Treatment Time on the Removal of Arsenic Species from Simulated Groundwater by Using Fe3+ and Ca2+ Impregnated Granular Activated Charcoals

P. Mondal, B. Mohanty, C. B. Majumder

Chemical Engineering and Science. 2013, 1(2), 27-31 doi:10.12691/ces-1-2-3