Water is needed at mine sites for dust suppression, mineral processing, coal washing, and
hydrometallurgical extraction. For these applications, water is mined from surface water …

Adsorption of Pb2+, Cd2+, Cu2+ and Cr3+ from aqueous solutions onto titanate nanotubes
(TNTs) in multiple systems was systematically studied. Particular attention was paid to …

Complete hydrochemical data are rarely reported for coal-mine discharges (CMD). This
report summarizes major and trace-element concentrations and loadings for CMD at 140 …

Water-quality data for discharges from 140 abandoned mines in the Anthracite and
Bituminous Coalfields of Pennsylvania reveal complex relations among the pH and …

Drainages from abandoned coal mines in the Appalachian Basin represent a potential
source of rare earth elements and yttrium (REY), many of which are considered to be critical …

Acid-mine drainage (AMD) is difficult and costly to treat. We investigated a new approach to
AMD treatment using fuel cell technologies to generate electricity while removing iron from …

Bioreactors represent an emerging technology for removing metals and sulfate commonly
found in acid mine drainage (AMD). Six continuously fed anaerobic bioreactors employing …

Acid mine drainage (AMD) has been proposed as a novel source of rare earth elements
(REE), a group of elements that includes critical metals for clean energy and modern …

Mining and mineral processing industries have generated a large amount of polymineral
wastes, causing the destruction and degradation of huge areas of landscapes at extensive …

Rare earth elements (REE) are critically important in clean energy technologies, but their
mining and refining is energy intensive and generates significant quantities of …