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- W4313887764 abstract "Abstract Underground coal extraction at Coal Mine Velenje occasionally gives rise to odour complaints from local residents. This manuscript describes a robust quantification of odorous emissions of mine sources and a model-based analysis aimed to establish a better understanding of the sources, concentrations, dispersion, and possible control of odorous compounds during coal extraction process. Major odour sources during underground mining are released volatile sulphur compounds from coal seam, that have characteristic malodours at extremely low concentrations at µg/m 3 levels. Analysis of 1028 gas samples taken over a six-year period (2008-2013) reveal that dimethyl sulphide ((CH 3 ) 2 S) is the major odour active compound present in the mine, being detected on 679 occasions throughout the mine. While hydrogen sulphide (H 2 S) and sulphur dioxide (SO 2 ) were detected 5 and 26 times. Analysis of gas samples has shown that main DMS sources in the mine are coal extraction locations at longwall faces and development headings and that DMS is releasing during transport from main coal transport system. The dispersion simulations of odour sources in the mine have shown that the concentrations of DMS at median levels can represents relatively modest odour nuisance. While at peak levels the concentration of DMS remained sufficiently high to create an odour problem both in the mine and on the surface. Overall, dispersion simulations have shown that ventilation regulation on its own is not sufficient as an odour abatement measure." @default.
- W4313887764 created "2023-01-10" @default.
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- W4313887764 date "2023-01-09" @default.
- W4313887764 modified "2023-10-10" @default.
- W4313887764 title "Assessment of dimethyl sulphide odorous emissions during coal extraction process in Coal mine Velenje" @default.
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- W4313887764 doi "https://doi.org/10.21203/rs.3.rs-2279834/v1" @default.
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