Closed coal mine shaft as a source of carbon dioxide emissions

The closure of coal mines does not terminate their impact on the environment. Gas emissions into the atmosphere are the one of the problems. The closed “Gliwice II” shaft has been selected for a series of measurements to assess greenhouse gas emissions from the closed mine; however, only CO 2 emissi...

Full description

Saved in:
Bibliographic Details
Published in:Environmental earth sciences 2016-08, Vol.75 (15), p.1, Article 1139
Main Authors: Wrona, Paweł, Różański, Zenon, Pach, Grzegorz, Suponik, Tomasz, Popczyk, Marcin
Format: Article
Language:English
Subjects:
Analysis
Biogeosciences
Carbon dioxide
Coal gasification
Coal mining
Earth and Environmental Science
Earth Sciences
Emissions
Environmental Science and Engineering
Geochemistry
Geology
Hydrology/Water Resources
Original Article
Studies
Terrestrial Pollution
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The closure of coal mines does not terminate their impact on the environment. Gas emissions into the atmosphere are the one of the problems. The closed “Gliwice II” shaft has been selected for a series of measurements to assess greenhouse gas emissions from the closed mine; however, only CO 2 emission has been detected. The article compromises obtained knowledge about the rate of emissions and the influence of meteorological parameters on this phenomenon—baric tendency, difference in dry-bulb temperature between flowing gas and the atmosphere (buoyancy effect) and wind speed. In the course of the conducted research, it was detected that the highest amount of carbon dioxide emission was V CO 2  = 0.023 m 3 /s (which is 82.8 m 3 /h) when baric tendency of pressure drop was 0.57 hPa/h, and the difference between dry-bulb temperatures gas and atmosphere was +4.4 °C (the highest difference in the obtained results). The rate of CO 2 emissions varied from 12.7 to 162.3  kg CO 2 / h . Carbon dioxide was detected up to 43 m from the shaft. The results can be considered as a general conclusion about gas behavior when it flows from the underground sites to the surface in natural conditions and about gas concentrations near a point of emission, especially in the case of former mines. However, it may also be useful for other applications, e.g., the leakages from installations of underground coal gasification, or gas drainage.
ISSN:1866-6280
1866-6299
DOI:10.1007/s12665-016-5977-7