Coal Mine Velenje, Partizanska 78, 3320, Velenje, Slovenia.
Jožef Stefan International Postgraduate School Ljubljana, Jamova 39, 1000, Ljubljana, Slovenia.
Environ Monit Assess. 2023 Oct 4;195(11):1269. doi: 10.1007/s10661-023-11755-z.
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 micrograms per cubic metre (μg/m) levels. Analysis of 1028 gas samples taken over a 6-year period (2008-2013) reveals that dimethyl sulphide ((CH)S) is the major odour active compound present in the mine, being detected on 679 occasions throughout the mine, while hydrogen sulphide (HS) and sulphur dioxide (SO) 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 represent 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.
维利纳煤矿（Coal Mine Velenje）的地下采煤偶尔会引起当地居民对异味的投诉。本文描述了对煤矿源恶臭排放的强有力量化，并进行了基于模型的分析，旨在更好地了解在采煤过程中恶臭化合物的来源、浓度、分散和可能的控制。地下采煤过程中的主要异味源是从煤层中释放出挥发性硫化合物，其特征臭味极其微弱，浓度在微克/立方米（μg/m）水平。对 2008 年至 2013 年期间采集的 1028 个气体样本进行分析表明，二甲基硫（(CH)S）是矿中主要的异味活性化合物，在整个矿区共检测到 679 次，而硫化氢（HS）和二氧化硫（SO）分别检测到 5 次和 26 次。对气体样本的分析表明，矿中主要的 DMS 源是长壁工作面和掘进工作面的采煤地点，并且 DMS 在从主煤运输系统运输过程中释放。对矿中异味源的扩散模拟表明，DMS 的中值浓度可以代表相对适度的异味滋扰。而在峰值水平时，DMS 的浓度仍然足够高，在井下和地表都会产生异味问题。总的来说，扩散模拟表明，仅靠通风调节不足以作为一种减轻异味的措施。
