Treatment of Acid Mine Drainage (AMD) through filters made with mining tailings.

Date
Asesores
Journal Title
Journal ISSN
Volume Title
Publisher
Politécnico Colombiano Jaime Isaza Cadavid
Date
2022-09-30
Abstract
Description
Acid Mine Drainage poses a risk to human health and the environment when not managed properly; therefore, to promote an innovative and economic strategy for its adequate treatment focused on pH neutralization, five filters were made with mining tailings and other materials following the Design Thinking methodology. The main results show that it is possible to neutralize AMD with a pH of 2.5 from a mine in California, Santander, Colombia, and leave its effluent with pH values in a range of 6.0 to 8.1. The conclusion is that the clayey composition with the presence of calcium and carbonates made with the mentioned material in the mining, allows filters to neutralize AMD to such an extent that it is feasible to develop a large-scale project where these are included, which will allow treating AMD and mitigating environmental liabilities related to the accumulation of solid waste.
Los Drenajes Ácidos de Mina representan un riesgo para la salud humana y el medio ambiente cuando no se gestionan adecuadamente; con el fin de promover una estrategia innovadora y económica para su adecuado tratamiento enfocado en la neutralización del pH, se elaboraron cinco filtros con relave minero y otros materiales siguiendo la metodología de Desing Thinking. Los principales resultados muestran que es posible neutralizar los DAM con pH de 2,5 procedentes de una mina en  California, Santander y dejar su efluente con valores de pH en un rango de 6,0 a 8,1. La conclusión es que la composición arcillosa con presencia de calcio y carbonatos en el relave minero permite que los filtros elaborados con este material puedan neutralizar los DAM a tal punto que es viable desarrollar un proyecto a gran escala en donde se incluyan estos filtros, lo cual permitirá tratar los DAM y mitigar los pasivos ambientales relacionados con la acumulación de residuos sólidos. Acid Mine Drainage represents a huge risk to people’s health and the environment when is not managed properly. Therefore, in order to promote an innovative and economic strategy that involves an adequate treatment focused on pH neutralization, five filters were made with mining tailings and other materials following the Design Thinking methodology. One of the main results show that it’s possible to neutralize AMD with a pH of 2.5, this, from a mine in the town of California, Santander, Colombia, leaving its effluent with pH values in a range of 6.0 to 8.1. The conclusion was that the clayey composition having the presence of calcium and carbonates, made with the mentioned material in the mining, allows filters to neutralize AMD to such an extent that it is feasible to develop a large-scale project where these are included, which in the future will allow treating AMD and mitigating environmental liabilities related to the accumulation of solid waste.
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Keywords
Acid mine drainage, acid pH neutralization, mining tailings, environmental passives, mining, Drenajes ácidos de mina, neutralización de pH ácido, relave minero, pasivos ambientales, minería
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