Reclaimed mine soils (RMS) which develop on post-mining sites play significant role in Carbon sequestration in new ecosystems, especially in local range on areas disturbed by human activity. This study presents the potential for Carbon sequestration in RMS developing on 3 post surface mining areas in Poland (Central Europe) reforested with Scots pine (Pinus sylvestris L). Research was conducted...

The purpose of this study was to determine physical fitness level of lignite miners in the Czech Republic. The authors have examined a representative group of 152 active lignite miners by bicycle spiroergometry. The duration of employment in coal mines ranged between 5 and 32 years. The average age was 43.1 •} 4.7 years. The miners had an average peak oxygen consumption 2.9 •} 0.5 1.min-1, corr...

In this research, effect of demineralization and solvent swelling on pyrolysis kinetics was investigated. The experiments were carried out to investigate theeffects of solvent swelling with different solvents, such as THF, Pyridine and DMSO after demineralization with HCl, HNO3 and HF successively. To calculate the activation energies of lignite sample during pyrolysis, TGA analyses were perfor...

Coal spontaneous combustion (CSC) is a serious threat to the safe mining of coal resources, and selection suitable gas indicators predict CSC state crucial for prevention control mine fires. In this paper, temperature-programmed experiment was first carried out analyze components compositions in oxidative pyrolysis process three samples (lignite, long-flame coal, lean coal) with different coali...

The emissions of carbon dioxide and nitrogen and sulphur oxides for electricity generation with coal and biomass co-firing are investigated and the furnace gas temperature assessed. The study uses simulation and considers fuel combinations based on two coals (bituminous coal, lignite) and four types of biomass (rice husk, sawdust, chicken litter, refused derived fuel). With increasing biomass, ...

Over the last several decades, the US electric utility industry has come to rely, increasingly, on Powder River Basin coals (PRB) and lignite for electric power generation. This increase in the use of these fuels stems, in part, from their being relatively inexpensive and low in sulfur. However, both types of fuel are high in moisture—25 to 40% for lignite and 15 to 30% for PRB – and this resul...