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Mostrando ítems 371-380 de 550
Evaluación de la oxidación química en el tratamiento del drenaje ácido producto de la actividad minera carbonífera
Con el propósito de evaluar la oxidación química como método de tratamiento
para disminuir el impacto ambiental adverso de los drenajes ácidos generados por
la actividad minera carbonífera, se llevaron a cabo ensayos ...
Heavy metal resistance mechanisms in actinobacteria for survival in AMD contaminated soils
(Elsevier Gmbh, Urban & Fischer Verlag, 2005-09)
A site in the former uranium mining area of Eastern Thuringia near Ronneburg was investigated with regard to effects of acid mine drainage (AMD) on reactive transport and bioattenuation. Processes involved in this attenuation ...
Reagent-free flow-injection amperometric sensor for quantification and speciation of iron for bio-hydrometallurgical applications
(Elsevier Science Sa, 2015-12)
Iron ions are monitored in processes such as bio-leaching, bio-oxidation, ferric leaching, passivation control, and others. The role of iron in different hydrometallurgy processes is very important because it affects ...
Estudio de filtraciones utilizando tritio como radiotrazador en mina polimetálica del norte de Perú
(Lima (Perú)PE, 2008-11)
El presente estudio es la continuación de uno previo realizado por el IPEN en el año 2006, el propósito es establecer la probable conexión entre el drenaje de agua ácida de mina, ubicado en un nivel de galería de mina y ...
Origin and geochemistry of arsenic in surface and groundwaters of Los Pozuelos basin, Puna region, Central Andes, Argentina
(Elsevier Science, 2019-12-20)
Los Pozuelos is a closed basin in the Puna region of NW Argentina, Central Andes. This is a semi-arid region where closed basins are the most important feature for the hydrologic systems. The center of the basin is occupied ...
Origin, distribution, and geochemistry of arsenic in the Altiplano-Puna plateau of Argentina, Bolivia, Chile, and Perú
(Elsevier Science, 2019-05)
Elevated concentrations of arsenic in water supplies represent a worldwide health concern. In at least 14 countries of South America, high levels have been detected relative to international standards and guidelines. Within ...
Chemical precipitation and adsorption in the treatment of effluents containing dissolved metalsPrecipitación química y adsorción en el tratamiento de efluentes conteniendo metales disueltos
(Universidad Nacional Mayor de San Marcos, Facultad de Ingeniería Geológica, Minera, Metalúrgica y Geográfica, 2002)
AHL communication is a widespread phenomenon in biomining bacteria and seems to be involved in mineral-adhesion efficiency
(ELSEVIER SCIENCE BV, 2008-11)
Biofilm development plays a pivotal role in the bioleaching process. Quorum sensing (QS) is recognized as
one of the main regulatory ways of extracellular polymeric substances (EPS) production and biofilm
formation in ...
Nanoparticles in fossil and mineral fuel sectors and their impact on environment and human health: A review and perspective
(Corporación Universidad de la Costa, 2021)
Revegetação de Áreas de Mineração com Presença de Substratos SulfetadosRevegetation of Mining Areas with Presence of Sulphide Substrates
(Universidade Federal de ViçosaBRFertilidade do solo e nutrição de plantas; Gênese, Morfologia e Classificação, Mineralogia, Química,Mestrado em Solos e Nutrição de PlantasUFV, 2015)