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

الموضوعات:

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

الموضوعات:

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

الموضوعات:

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

الموضوعات: "…Coal mines…"

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

الموضوعات: "…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 حسب Chaparro Alba, Sandra Liliana

الموضوعات: