Results 41 to 50 of about 3,316 (202)
Kuangchan zonghe liyongThis is an article in the field of mining engineering. Aiming at the raw ore mined from Hushugou iron mine, Hushugou copper mine and Xiaoliugou tungsten mine of Jiuquan Iron and Steel Co., Ltd., the experimental study of pre separation and tailing is ...
Lei ZHANG +3 more
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Tailings From Mining Activities, Impact on Groundwater, and Remediation
Sultan Qaboos University Journal for Science, 2001 Effluent wastes from mining operations and beneficiation processes are comprized mostly of the following pollutants: total suspended solids (TTS), alkalinity or acidity (pH), settleable solids, iron in ferrous mining, and dissolved metals in nonferrous ...
Khalid Al-Rawahy
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Impact assessment of mine drainage water and municipal wastewater on the surface water in the vicinity of Bor [PDF]
Hemijska Industrija, 2015 Mining and copper production in Bor, in the past hundred years, had a huge impact on the environment of town, but also in a wide region. In the area of Bor, in the zone of Mining and Smelting Company (RTB) activity, over 29,000 ha of land under ...
Gardić Vojka R. +4 more
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Heating Pre-Treatment of Copper Ores and Its Effects on the Bond Work Index
Minerals, 2022 Comminution is the stage with the largest energy consumption in the mining process. Therefore, several pre-treatments have been proposed to reduce the energy requirements of this stage. This work analyzed the effect of a heating pre-treatment on the Bond index. A conventional heating pre-treatment was applied to a Chilean copper ore. The ore was heated
Nataly Cisternas +5 more
openaire +2 more sources
Advanced Intelligent Systems, EarlyView.We report a biodegradable electrolyte‐gated synaptic phototransistor that combines low‐power UV sensing with memory functionality, offering a sustainable platform for AI vision systems and health‐monitoring technologies. Presented here is a biodegradable, bioinspired synaptic phototransistor (SPT) based on an electrolyte‐gated field‐effect transistor ...
Theodoros Serghiou +5 more
wiley +1 more source
Yankuang ceshi, 2023 BACKGROUND Tin is widely distributed in the crust, and more than 20 kinds of tin minerals are known, mainly in the form of cassiterite SnO2.Cassiterite is insoluble in hydrochloric acid, nitric acid and aqua regia.Even when sulfuric acid is heated for a ...
WANG Guan +3 more
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Energy Science &Engineering, EarlyView.Using density functional theory (CASTEP, GGA–PBE), the structural, electronic, optical, and mechanical properties of YSeO₃X (X = F, Cl, Br, and I) compounds are systematically investigated. The materials have exhibited structural stability, tunable band gaps, strong optical absorption, anisotropic ductile behavior, and promising potential for ...
Nawishta Jabeen +5 more
wiley +1 more source
Archives of Environmental Protection, 2014 The subject of the research is one of the largest World’s mine tailings disposal sites, i.e. Żelazny Most in the Legnica-Głogów Copper Mining District (south-western Poland), where flotation tailings are poured out after copper ore treatment.
Duda Robert
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Applied Sciences, 2023 Mining is a significant industrial and economic activity, but it can also result in ore waste that contains several potentially toxic elements (PTEs). Furthermore, the wide range of observed transfer and accumulation factors suggests that not only the ...
Veronika Mihaylova +5 more
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Recent Developments in Sustainable Composites for Printed Circuit Boards (PCBs): A Review
Macromolecular Materials and Engineering, EarlyView.This review presents the potential of using natural plant fibers and biodegradable polymers as sustainable printed circuit boards (PCBs). This review provides future directions in innovation and sustainable PCBs development. Bio‐composites PCBs are both environmentally friendly and sustainable due to the natural fibres they contain.
Erdem Selver +7 more
wiley +1 more source