Essays about: "backfilling"
Showing result 1 - 5 of 10 essays containing the word backfilling.
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1. Extraction of Backfilled Tailings in the Dannemora Mine – Economic Potential and Rock Stability Assessment
University essay from Uppsala universitet/Institutionen för geovetenskaperAbstract : The cut-off grade determines what rock mass are economic to mine. At the Dannemora mine, in eastern Bergslagen, Sweden, previously processed ore generated tailings (enrichment sand) with an iron content of 21-22 % that was backfilled into large open bodies (stopes) in the mine between 2013-2015. READ MORE
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2. Geochemical tracing of Arsenic sources in groundwater at the remediated Storliden mine, Skellefte district
University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurserAbstract : The Swedish mining industry has changed from the historical situation with several smaller mines to the present situation with a few, bigger mines. This results in presence of abandoned mines around Sweden. Remediation of mines is regulated by legislation and the present demands are considerably higher than it was some decades ago. READ MORE
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3. Simulation of THz Quantum Cascade Lasers
University essay from Lunds universitet/Matematisk fysik; Lunds universitet/Fysiska institutionenAbstract : Quantum Cascade Lasers (QCLs) have since their invention in 1994 become a crucial source for mid-infrared and THz radiation. Mid-infrared QCLs have achieved room temperature operation while THz QCLs have not. As such, simulations are an important tool in order to achieve a THz QCL operational at room temperature. READ MORE
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4. Circular economy in the construction industry: An insight into the difficulties and possibilities with improving the concrete recycling rate for housing in Sweden
University essay from Uppsala universitet/Institutionen för geovetenskaperAbstract : In accordance with the Paris Agreement and the national goal of climate neutrality by 2045, Sweden needs to lower its greenhouse gas emissions. The second-largest source of CO2 emissions in the country comes from the production of cement, one of the main ingredients of concrete. READ MORE
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5. Sustainability Assessment for Strategic Material Flows Between Planned Construction Projects in the Stockholm County
University essay from Högskolan i Halmstad/EnergivetenskapAbstract : Urban development demands on construction aggregates are set to rise dramatically over the coming years within the Stockholm region and a significant environmental challenge will be associated with the large flows of construction aggregates and excavated materials in and out of future development projects respectively. Material banks receive construction and demolition waste (CDW), process this waste and supply recycled aggregates to the construction industry helping to reduce the demand on natural construction minerals. READ MORE