RT Journal Article T1 Hydrochemical Characterization of an Acid Mine Effluent from Concepcion Mine Using Classical Statistic and Fuzzy Logic Techniques A1 Santisteban Fernández, María A1 Luís, Ana Teresa A1 Grande Gil, José Antonio A1 Aroba Páez, Javier A1 Dávila Martín, José Miguel A1 Miguel Sarmiento, Aguasanta A1 Fortes Garrido, Juan Carlos A1 Córdoba García, Francisco A1 Rodríguez Pérez, Ángel Mariano AB This work focuses on the physical-chemical characterization of a mining effluent affected byacid mine drainage (AMD) from its source to the confluence in the Odiel river, one of the most pollutedrivers by AMD worldwide, in order to understand the reactions involved in the modifications in thechemical characteristics of water and precipitates resulting from water–rock–atmosphere interactionin an environment highly affected by mining activity without corrective measures. The channelstarts in an open pit lake through one of the Concepción Mine main galleries, located in the IberianPyrite Belt, about 10 km northwest of Rio Tinto mining complex (southwest Spain). This galleryintercepts one of the largest and oldest underground mining work locations called “gallery Carmen”,allowing the exit of AMD affected waters. This channel is the first AMD polluting source in the Odielbasin. Thus, at the end of the rainy season, we conducted water sampling along this channel, from itssource to its mouth, to further analyse its characterization and interpret the cause–effect relationshipsthrough the application of Fuzzy Logic and classical statistics tools. The interdependent relationshipbetween the measured physicochemical parameters are set in order to propose a model, capable ofdescribing the evolution of contaminants in response to the processes and reactions taking placewithin the affected channel and the Odiel river. The present work concluded the existence of naturalattenuation processes for the mining channel, despite the entrances of other drainages in the AMDchannel with different hydrochemical characteristics imposing modifications on it. This indicates thatthese media have a high vulnerability to external stimuli PB MDPI SN 2075-163X (electrónico) YR 2022 FD 2022 LK http://hdl.handle.net/10272/20888 UL http://hdl.handle.net/10272/20888 LA eng NO Santisteban, M., Luís, A. T., Grande, J. A., Aroba, J., Dávila, J. M., Sarmiento, A. M., Fortes, J. C., Cordoba, F., & Rodriguez-Pérez, Á. M. (2022). Hydrochemical Characterization of an Acid Mine Effluent from Concepcion Mine Using Classical Statistic and Fuzzy Logic Techniques. In Minerals (Vol. 12, Issue 4, p. 464). MDPI AG. https://doi.org/10.3390/min12040464 DS Repositorio Institucional de la Universidad de Huelva RD 13 jun 2026