This book is the result of a research project on the piloting of small-scale artificial wetlands using Scirpus Californicus and Festuca dolichophylla, which was developed with the objective of evaluating the efficiency of removal of heavy metals present in mining effluents; also to determine the efficiency of treatment in places with geographical and climatological characteristics similar to the District of Morococha - Junín - Peru. It contains the procedures carried out based on previous studies, in addition to results validated by laboratory analysis.