traitement de l'eau (1) eau de surface (1) acide sulfurique (1) sulphate (1) roche (1) oxygène (1) modélisation (1) minéral (1) métal (1) gestion (1) laboratoire (1) gypse (1) géologie (1) activité minière (1) abords (agglomération) (1) Language (1) Treatment (1) Bodies (1) Rich people (1) Minerals (1) Water--Purification (1) Water (1) Sulfuric acid (1) Sewage--Purification (1) Reproduction (1) Oxygen (1) Must (1) Models and modelmaking (1) Modeling (1) Mining engineering (1)