Diagnosis of accidents in the small and medium mining of Boyacá de réir González-Sierra, Miguel Alfonso, Lara-González, Luis Ángel

Ábhair:

A Technical and Environmental Study of Fortified Structures Used in Coal Mining in Norte de Santander de réir Bolívar-León, Rafael, Triviño-Jaimes, Neyl Richard, García-Mogollón, Javier Mauricio

Ábhair:

Productivity and competitiveness determination of the small-scale mining at the northern mining district in the state of Boyacá de réir Bernal, Martha Stella Martínez

Ábhair:

Automatized system of control and monitoring of gases from coal mines de réir Carreño Bodensiek, Carlos Guillermo

Ábhair: “…Coal mines…”

Performance of packed - bed corncob (Zea mays) in the removal of iron contained in acid mine drainage de réir Hernández, Angie Lorena, Vásquez-Ochoa, Olga Yaneth, Roldan-García, Fabio Augusto, Lobo, Jairo Antonio Cubillos, Pineda, Gerardo Andrés Caicedo

Ábhair: “…Chemical conditioning, adsorption, biomass, coal mine, remediation.…”

Evaluation of techniques to reduce the concentration of sedimentable solids in the wastewater produced in the coal mining in the municipality of Guachetá, Cundinamarca de réir Chaparro Alba, Sandra Liliana

Ábhair: