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Abstract Methane content in a coal seam is necessary parameter for evaluating bed gas, and it poses an environmental risk to underground mining activities. Keeping pace with comprehensive studies of 12 samples were selected from the Sitarampur block Raniganj Coalfield analysis. The Petrographic examination illustrated that significant values reactive macerals present demonstrate organic matter ...

Abstract Coal briquette is expected to be able become low-cost alternative energy source. However, coal combustion produces gas emission such as SO 2 , NO x CO, and CO that cause air pollution. The objective of this research minimize flue by using activated carbon made from low level lignite, obtained South Sumatera. Activated formation conducted chemical activation method, with ZnCl compositio...

it is known that native oil-degrading microorganisms are ubiquitous. they can be isolated from contaminated soils. in this study, biodegradation experiments were carried out to evaluate the efficiency of pollutant removal by adding the selected microorganisms. five mixed cultures and 3 single bacteria strains, pseudomonas sp., arthrobacter sp. and mycobacterium sp. were isolated from hydrocarbo...

The simultaneous improvement of the melting temperature (T(m) = 224 °C) and the decomposition temperature (T(10) = 359 °C) of poly(lactide)s was achieved by the stereocomplex formation of poly(l-lactide) and poly(d-lactide) with bio-based aromatic groups at both initiating and terminating chain ends.