Prediction of Acid Mine Drainage: Importance of Mineralogy and the Test Protocols for Static and Kinetic Tests

摘要: Static tests, which compare the acid-generating potential and acid-neutralizing for a given mine waste (tailings or rocks), are characterized by wide uncertainty zone in it is impossible to accurately predict (AGP). Then, better assess long-term AGP, kinetic tests usually performed provide more information about reaction rates of minerals. The present work compares classic Sobek static test with three mineralogical importance sample mineralogy acid drainage (AMD) prediction. We also investigated how experimental procedures related can influence prediction results. used synthetic tailings samples made mixing well-characterized pure minerals calibrated proportions. Although basically different their principles procedures, modified gave similar These AGP predictions were then validated use test. protocol was this study results obtained correlated well results, contrast standard protocol. highlights limitations provides recommendations these reliable AMD