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Co-firing of blends of sugarcane bagasse and coal: Thermal and kinetic behaviors
(2018-05-01)
The interaction effects between sugarcane bagasse and a Brazilian coal during co-firing were investigated by means of thermal decomposition behavior, comparison between theoretical and experimental results, activation ...
Radon exhalation rate and indoor exposure in a Brazilian coal mine
(2019-06-15)
Radionuclides in mineral coal and related rocks are of great concern to the human health, among them the radon gas, as it has been considered the second largest cause of lung cancer by the World Health Organization (WHO). ...
Underground mining of coal versus community around it: an example of Santa Catarina State - Brazil
(Escola De Minas, 2007-07-01)
Usually, mining activities and their neighborhoods are at odds, with huge losses to the latter, who for lack of other housing options must live right in the area, with dust, sound and vibration problems. Using the data ...
Determination of in situ uniaxial compressive strength of coal seams based on geophysical data
(SPRINGER HEIDELBERG, 2009)
The central issue for pillar design in underground coal mining is the in situ uniaxial compressive strength (sigma (cm)). The paper proposes a new method for estimating in situ uniaxial compressive strength in coal seams ...
The studies on coal in the mineral-mineralogical magazines of Mexico City, 1870-1879
(Instituto de Investigaciones Históricas, 2017)
Study of the treatment of subbituminous coals by NaOH solutions
(1981)
A subbituminous coal from La Union (Chile) has been treated with aqueous NaOH solutions. The quantity of coal solubilized and the elimination of ash was found to increase with increase in hydrolysis time, temperature and ...
Coal mining on pastureland in Southern Chile; challenging recognition and participation as guarantees for environmental justice
(Elsevier, 2016)
Coal mining in Chile has grown significantly from virtually nonexistent in the late 1990s to become a
profitable business in 2014. This paper explores the consequences of such revival from a post-political
environmental ...
Comparative study on combustion and oxy-fuel combustion environments using mixtures of coal with sugarcane bagasse and biomass sorghum bagasse by the thermogravimetric analysis
(2018-01-01)
Biomass and coal have different physicochemical properties and thermal behavior. During the co-combustion of coal-biomass mixtures, their thermal behavior varies according to the percentage of each fuel in the mixture. ...
Natural radionuclides in lichens, mosses and ferns in a thermal power plant and in an adjacent coal mine area in southern Brazil
(2017-02-01)
The radio-elements 234U, 235U, 238U, 230Th, 232Th and 210Po were characterized in lichens, mosses and ferns species sampled in an adjacent coal mine area at Figueira City, Paraná State, Brazil, due to their importance for ...
Modification of Lotic Environments for Open Pit Coal Extraction: Effects on Biota and Recommendations
(Univ Nac Colombia, Fac Ciencias, Dept Biol, 2018-01-01)
Open coal mining will cause a series of modifications to different lotic environments in Colombia. In this paper we analyzed the case of an open pit coal mine located in the Department of La Guajira, Colombia, focusing on ...