Essays about: "mine leachate"
Showing result 1 - 5 of 9 essays containing the words mine leachate.
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1. Some Like It Hot: Pre-heating Prior to Bioreactor Treatment Enhances Nitrogen Removal From Mine Drainage
University essay from Uppsala universitet/Luft-, vatten- och landskapsläraAbstract : Ammonium-nitrate based explosives (NH4NO3) used within the operations of Kiruna iron ore mine release nitrate (NO3-) into the environment, potentially having adverse effects on local river-systems. One way of reducing NO3- impacts to the environment is through a woodchip denitrifying bioreactor (DBR). READ MORE
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2. Simulation of Leachate Generation from a Waste Rock Dump in Kiruna Using HYDRUS-1D
University essay from Uppsala universitet/Institutionen för geovetenskaperAbstract : The percolation of water through waste rock dumps at mine sites can lead to the production of a leachate with high concentrations of dissolved metals, sulfate and nitrogen compounds. It is important to understand how water flows in waste rock dumps in order to predict the environmental impact of this leachate on recipients. READ MORE
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3. 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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4. Treatment of Historic, Sulphide-rich Mine Waste from Ljusnarsberg Using Alkaline By-products
University essay from Örebro universitet/Institutionen för naturvetenskap och teknikAbstract : Alkaline by-products were used in a leaching test to study their effect on highly weathered, sulphide-rich mine waste from Ljusnarsberg for the attempt to neutralize the leachate and immobilize trace metals through precipitation of secondary minerals. Leaching was performed at liquid/solid ratio of 0.5-20 with 10 % alkaline material. READ MORE
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5. 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