Essays about: "Acid mine drainage"
Showing result 6 - 10 of 16 essays containing the words Acid mine drainage.
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6. Evaluating the effective oxygen diffusion coefficient in blends of till and green liquor dregs (GLD) used as sealing layer in mine waste covers
University essay from Luleå tekniska universitet/Geovetenskap och miljöteknikAbstract : Dry covers can be used to limit the generation of acid mine drainage from sulphidic mine waste exposed to air and water. For the covers to act efficiently a high degree of saturation should be maintained in the cover, as the diffusion of oxygen is substantially reduced in water compared to that in air. READ MORE
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7. Geochemical processes in mine waste subjected to a changing chemical environment: Fe speciation in leachate water from column experiments
University essay from Luleå tekniska universitet/Geovetenskap och miljöteknikAbstract : Oxidation of sulfidic mine waste is of significant environmental concern due to the consequent formation of acid rock drainage (ARD), deteriorating the water quality of natural water systems. Iron (Fe) and sulfur (S) are two major redox elements involved in these reactions and typically the major redox-sensitive elements (whose solubility, speciation, and mobility are affected by pH and Eh) in water affected by ARD. READ MORE
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8. OIL SHALE ASH UTILIZATION IN INDUSTRIAL PROCESSES AS AN ALTERNATIVE RAW MATERIAL
University essay from KTH/Industriell ekologiAbstract : Oil shale is a fine-grained sedimentary rock with the potential to yield significant amounts of oil and combustible gas when retorted. Oil shale deposits have been found on almost every continent, but only Estonia, who has the 8th largest oil shale deposit in the world has continuously utilized oil shale in large scale operations. READ MORE
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9. Evaluation of Long-term Impact of Coal Mining in Zambezi River Basin in Mozambique
University essay from Lunds universitet/Avdelningen för Teknisk vattenresursläraAbstract : Zambezi River Basin is an international river basin which sustains life of about 30 million people in its riparian countries: Angola, Botswana, Malawi, Mozambique, Namibia, Tanzania, Zambia and Zimbabwe. The main stream of the river enters to Mozambique with average flow of about 2330 m3/s and reaches the outfall in the Indian Ocean with about 4134 m3/s. READ MORE
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10. Treatment methods for water pollution from coal mining in Moatize (Mozambique)
University essay from Lunds universitet/Avdelningen för Teknisk vattenresursläraAbstract : Moatize district located in Tete province in the center of Mozambique has one of the largest unexploited coal deposits of the world with a capacity of 2.5 billions of tones. Recently many multinational coal mine companies started exploitation of coal in Moatize. Coal exploitation has economical, social and environmental impacts. READ MORE
