نتایج جستجو برای: acid rock drainage

تعداد نتایج: 822838  

2006
Warwick A. Stewart Stuart D. Miller Roger Smart

Research was carried out to improve acid rock drainage (ARD) prediction methodologies, focussing on resolving uncertainties in acid base accounting (ABA) methods. Advancements, their application, and interpretation are reported. Consideration of both net acid production potential (NAPP) and net acid generation (NAG) test results provide a more reliable routine screening technique than either te...

Journal: :Journal American Society of Mining and Reclamation 2006

Journal: :International Journal of Geo-Engineering 2021

2014
Boris P. Ilyashuk Elena A. Ilyashuk Roland Psenner Richard Tessadri Karin A. Koinig

Despite the fact that rock glaciers are one of the most common geomorphological expressions of mountain permafrost, the impacts of their solute fluxes on lakes still remain largely obscure. We examined water and sediment chemistry, and biota of two neighboring water bodies with and without a rock glacier in their catchments in the European Alps. Paleolimnological techniques were applied to trac...

Journal: :FEMS microbiology letters 2016
Irene Sánchez-Andrea Alfons J M Stams Jan Weijma Paula Gonzalez Contreras Henk Dijkman Rene A Rozendal D Barrie Johnson

The metal mining industry faces many large challenges in future years, among which is the increasing need to process low-grade ores as accessible higher grade ores become depleted. This is against a backdrop of increasing global demands for base and precious metals, and rare earth elements. Typically about 99% of solid material hauled to, and ground at, the land surface currently ends up as was...

2013
Erika Levei Tiberiu Frentiu Michaela Ponta Claudiu Tanaselia Gheorghe Borodi

UNLABELLED BACKGROUND The objective of this study was to examine the potential environmental risk of tailings resulted after precious and base metal ores processing, stored in seven impoundments located in the Aries river basin, Romania. The tailings were characterized by mineralogical and elemental composition, contamination indices, acid rock drainage generation potential and water leachab...

Journal: :Journal American Society of Mining and Reclamation 2006

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