De Dieu, R.J., Oliva, A.J. and Rijalalaina, R. 2017. Valorization of the Pyrite in View of the Synthesis of Ferrate of Potassium and Sulphate Ferric Wall Lamps in the Treatment of the Drinking Waters. International Journal For Research In Applied And Natural Science. 3, 10 (Oct. 2017), 01–23. DOI:https://doi.org/10.53555/ans.v3i10.86.