scholarly journals Illinois No. 6 Underground Bituminous Coal Mine Site, Construction

2010 ◽  
Author(s):  
Timothy J Skone
Keyword(s):  
Coal Mine ◽  
Bituminous Coal ◽  
Mine Site

Evaluation of pollution levels at an abandoned coal mine site in Turkey with the aid of GIS

2011 ◽  
Vol 86 (1) ◽  
pp. 12-19 ◽  
Author(s):  
Firdes Yenilmez ◽  
Nazan Kuter ◽  
Mustafa Kemal Emil ◽  
Aysegul Aksoy
Keyword(s):  
Coal Mine ◽  
Mine Site ◽  
Pollution Levels ◽  
Abandoned Coal Mine

Reserves of aluminium and mineral nutrients in seeds ofEucalyptus calophylla(Myrtaceae) with reference to the globoid inclusions

1995 ◽  
Vol 5 (1) ◽  
pp. 53-57
Author(s):  
Louise M. Egerton-Warburton ◽  
Brendon J. Griffin ◽  
John Kuo
Keyword(s):  
Soil Ph ◽  
Forest Soils ◽  
Coal Mine ◽  
Mineral Nutrients ◽  
Soil Conditions ◽  
Forest Site ◽  
Parent Plant ◽  
Mine Site ◽  
X Ray ◽  
Germinating Seeds

AbstractAmounts of mineral nutrients and aluminium (Al) were assessed in the globoid inclusions, proteinaceous matrix and druse crystals ofEucalyptus calophyllaseeds collected from trees grown in coal-mine (mean soil pH 4.3, Al 260 μg g−1) and forest soils (pH 5.3, Al 10 μg g−1). Energy-dispersive X-ray microanalysis (EDX) of bulk frozen hydrated samples indicated that significantly higher amounts of Mg, P, S, K and Ca occurred in the globoid inclusions of mine- than forest-site seeds. In both seedstocks, Al was detected in the globoid inclusions but not in the proteinaceous matrix or druse crystals. Significantly higher amounts of Al occurred in mine-site samples of dry and germinating seeds than in forest-site seeds. It was concluded that globoid inclusions may be useful as indicators of the soil conditions in which the parent plant was grown.

scholarly journals Experimental study of the moisture content influence on CH4 adsorption and deformation characteristics of cylindrical bituminous coal core

2018 ◽  
Vol 36 (7-8) ◽  
pp. 1512-1537 ◽  
Author(s):  
Dingyi Hao ◽  
Lei Zhang ◽  
Mingxue Li ◽  
Shihao Tu ◽  
Cun Zhang ◽  
...  
Keyword(s):  
Moisture Content ◽  
Adsorption Capacity ◽  
Exponential Decay ◽  
Coal Mine ◽  
Bituminous Coal ◽  
Gas Adsorption ◽  
Decay Function ◽  
Exponential Decay Function ◽  
Adsorption Deformation ◽  
Original Moisture

Moisture content in coal is an important factor affecting the coal seam gas extraction. It directly affects the storage and flow of gas in bituminous coal. In this paper, the cylindrical bituminous coal cores of Xutuan coal mine in Huaibei coal mine group were studied as experimental objects, using the laboratory self-designed experimental device Gas Adsorption and Strain Testing Apparatus system. The influence of the bituminous coal moisture content on gas adsorption characteristics was studied. Drying experiments of coal samples showed that they lose the original moisture content following the exponential decay function of time. At wetting, the saturated moisture content in coal samples increased following the Exponential Association function of time. The experimental results show that the average original moisture content and average saturated moisture content of raw coal samples are 1.3 and 2.4%, respectively. On this basis, the gas adsorption experiments on samples with different moisture contents under different gas pressures were carried out. With the moisture content increase, the gas adsorption capacity and saturation value decreased and the decrease rate gradually reduced. The single exponential decay function describes the gas adsorption capacity dependence on moisture content. Moisture content also affects the adsorption deformation of bituminous coal. At high moisture content, the adsorption deformation of bituminous coal is less.

scholarly journals Ombilin Coal Mine Site: History and Potential as a Learning Source for the History of the Economy Based on Outdoor Learning

2020 ◽  
Vol 3 (3) ◽  
pp. 1343-1352
Author(s):  
Rosmati Rosmiati ◽  
Anny Wahyuni ◽  
Amir Syarifuddin
Keyword(s):  
Coal Mining ◽  
Coal Mine ◽  
Outdoor Learning ◽  
Learning Resource ◽  
Mine Site ◽  
Secondary Sources ◽  
History Of ◽  
Descriptive Approach ◽  
The City ◽  
Site History

This study aims to determine the history of the Ombilin Sawahlunto coal mine, the use of this site as a historical learning resource based on outdor learning and the obstacles it faces in its utilization. The method used in this research is qualitative with a descriptive approach. The sources used were interviews, literature and newspapers. After collecting the sources and separating the primary and secondary sources, rewrite them. The research results found that government projects in the city of sawahlunto consist of three projects including first, exploitation of coal mines, second, construction of railways, third, construction of the port of Emmahaven (Teluk Bayur). Traces of Dutch heritage that still exist today are the railway museum, Goedang Ranseum, Mbah Soero Mine Hole, and the Coal Mining Museum. This legacy can be used as a source of historical learning based on outdor learning.

Bur oak (Quercus macrocarpa) biomass production on a former coal mine site: positive effects of coppicing on rapid recovery of growth and yield

2019 ◽  
Vol 49 (9) ◽  
pp. 1060-1068
Author(s):  
A. Mosseler ◽  
J.E. Major ◽  
D. McPhee
Keyword(s):  
Biomass Production ◽  
Coal Mine ◽  
Dry Mass ◽  
Height Growth ◽  
The Other ◽  
Rapid Recovery ◽  
Stem Height ◽  
Quercus Macrocarpa ◽  
Mine Site ◽  
Bur Oak

Ten-year-old bur oak (Quercus macrocarpa Michx.) saplings established on the exposed, infertile, treeless barrens of a former coal mine site in New Brunswick, Canada, were harvested to assess the effects of subsequent coppicing on regrowth parameters and biomass production. Two years after harvesting, coppice height growth exceeded that of the original 10-year-old saplings by 20%. Mean stem numbers were 1.2 and 6.7 for 10-year-old and coppiced trees, respectively. Mean dry mass recovered after 2 years with 214, 112, and 207 g for 10-year-old saplings and the 1- and 2-year-old coppices, respectively. Site quality of the broken shale rock overburden was similar across four of the five sites, with the exception that one site had twice the soil nitrogen (N) at 0.123% than the other four site types, which had an average of 0.064% N. This high N site had 2.3-fold the productivity of the mean for the other four sites. Mean coppice stem height showed the strongest predictive relationship to total coppice dry mass when compared with the greatest stem height, greatest or mean stem basal diameter, or coppice stem number. The most dramatic result of this bur oak coppicing experiment was the rapid recovery of height growth, biomass production, and observable stem quality within coppices over the 2-year period following harvesting of the original, 10-year-old saplings.

ASSESSMENT FOR TREATMENT OPTIONS AT THE YOUNG DONG COAL MINE SITE, SOUTH KOREA

2009 ◽  
Vol 2009 (1) ◽  
pp. 1063-1075
Author(s):  
J. F. Ranville ◽  
P. L. Sibrell ◽  
T. R. Wildeman ◽  
B. T. Lee ◽  
M. Jang ◽  
...  
Keyword(s):  
South Korea ◽  
Coal Mine ◽  
Treatment Options ◽  
Mine Site
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