Fig. 6: Quantitative composition of the solid precipitates for real solution.

Composition obtained before (A, B) and after (C, D) basic treatment of real mine wastewater at different temperatures, in terms of crystalline phases detected by PXRD (A, C) and corresponding relative elemental composition (excluding C, O and H atoms) (B, D) in the starting solution (Feed), recovered crystals (Cryst.) and mother solution after removal of crystals by filtration (Ret.).