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A thermogravimetric analysis of the combustion of a Brazilian mineral coal
(Sociedade Brasileira de Química, 2008)
Knowledge of coal combustion kinetics is crucial for burner design. This work aims to contribute on this issue by determining the kinetics of a particular Brazilian bituminous coal. Non-isothermal thermogravimetry was ...
The studies on coal in the mineral-mineralogical magazines of Mexico City, 1870-1879
(Instituto de Investigaciones Históricas, 2017)
Atmospheric bubbling fluidized bed combustion: Application to high ash coals and approach to scientific research
(1996-06-01)
This work is concerned with research on atmospheric bubbling fluidized bed combustion (AFBC) applied to mineral coals of high ash content. Coals is considered in a scenario of power generation both domestic and world-wide, ...
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). ...
Natural radionuclides in plants, soils and sediments affected by U-rich coal mining activities in Brazil
(Elsevier B.V., 2017-10-01)
Mining activities can increase the mobility of metals by accelerating the dissolution and leaching of minerals from the rocks and tailing piles to the environment and, consequently, their availability for plants and ...
Natural radionuclides in plants, soils and sediments affected by U-rich coal mining activities in Brazil
(2017-10-01)
Mining activities can increase the mobility of metals by accelerating the dissolution and leaching of minerals from the rocks and tailing piles to the environment and, consequently, their availability for plants and ...
Occupational airborne contamination in south Brazil: 1. Oxidative stress detected in the blood of coal miners
(SPRINGER, 2009)
Reactive oxygen species and nitrogen species have been implicated in the pathogenesis of coal dust-induced toxicity. The present study investigated several oxidative stress biomarkers (Contents of lipoperoxidation = TBARS, ...
Utilização do coque verde de petróleo da Petrobras em substituição parcial ao carvão mineral das misturas injetadas em altos fornos
(2010-04-01)
The Petrobras produced green petroleum coke (GPC) is a carbon rich fuel, virtually ash-free, with low sulfur content, and is a fuel suitable to replace metallurgical coke in blast furnaces. The GPC was tested in a pulverized ...
Full-scale anaerobic sequencing batch biofilm reactor for sulfate-rich wastewater treatment
(DESALINATION PUBL, 2011)
This paper describes the performance and biofilm characteristics of a full-scale anaerobic sequencing batch biofilm reactor (ASBBR; 20 m(3)) containing biomass immobilized on an inert support (mineral coal) for the treatment ...
Anaerobic treatment of sulfate-rich wastewater in an anaerobic sequential batch reactor (AnSBR) using butanol as the carbon source
(ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2011)
Biological sulfate reduction was studied in a laboratory-scale anaerobic sequential batch reactor (14 L) containing mineral coal for biomass attachment. The reactor was fed industrial wastewater with increasingly high ...