Although the models have proved applicable in deter- mining the coal utilization technology to implement for those particular coals, they were specifically developed for coals rich in minerals hence difficult to beneficiate for coals Table 6 Coal utilization basing on hydrogen and carbon contents as ...
According to this analysis, the pore pressure adjacent to the working face may be lowered by drainage in a measurable way to reduce the likelihood of an outburst. This model is capable of predicting the potential risk ahead of the working face during mining and can be adapted to different ...
A field trial to stimulate methane production was carried out in a gas-free sulfate-rich subbituminous coal-seam reservoir located in the western coalfields of New South Wales, Australia. Our aim was to assess the impact of basic nutrient addition and an oxic/anoxic treatment regime on the bi...
North of Huelva on the Iberian Peninsula, the mines at the headwaters of the Rio Tinto had drawn Phoenician merchants to Spain and were a major sources of copper for the Roman Empire. There was little mining activity in the Rio Tinto region after Roman mining ceased around the year 400 unti...
Therefore, combining in situ engineering geological factors for on-site experiments is urgent. 7. Conclusions The underground dispersed organic matter left over by China’s coal mining, such as goaves and thin coal layers with no industrial development value, provides a rich material source for ...
Coalmining tunnels can be categorized according to their functio2nof: 21haulage roahdawulaagyes,romadaiwnayr)e.tuCronalmaiirnwinagystu, ndneevlselcoapnmbeenctatreogaodriwzeadysa,ccaonrddinpgretopatrhaetiirofnunrcotaiodnw: ahyaus.lagHe aulage roardoawdawyasysa,remuaisnedreftourrntraainrwspao...
2 Beijing Key Laboratory for Precise Mining of Intergrown Energy and Resources, China University of Mining and Technology, Beijing 100083, China 3 Department of Chemical Engineering, School of Engineering, The University of Western Australia, 35 Stirling Highway, Perth, WA 6009, Australia 4 School...
Due to the withdrawal of coal from power generation in the EU, mining companies in Poland are forced to adapt their production to the decreasing demand. Forecasting the volume of demand plays an important role in planning the volume of the mine’s output. The demand for coal is constantly ch...
The levels of contamination of these heavy metals in soils were compared to those in street dust, and the difference between the railway's and mining's impacts on dust's heavy-metal concentrations was explored. The results indicated that Cr and Pb in street dust were mainly affected by coal...