DBPapers
DOI: 10.5593/sgem2012/s03.v1046

PROTECTION OF ENVIRONMENT DURING ESCAPING OF METHANE FROM ABANDONED MINES IN CZECH REPUBLIC

K. DOLINKOVA, K. OZANA, L. SNOPEK, K. CERNA, V. DORAZIL
Wednesday 1 August 2012 by Libadmin2012

References: 12th International Multidisciplinary Scientific GeoConference, www.sgem.org, SGEM2012 Conference Proceedings/ ISSN 1314-2704, June 17-23, 2012, Vol. 1, 749 - 756 pp

ABSTRACT

This paper deals with the release of gas from closed underground mines. This
phenomenon has a very adverse impact on the environment. It mainly affects air
pollution; however,it also brings about the possibility of creating an explosive mixture
of gas in the vicinity of closed mines. To resolve this issue, different countries in the
world use different methods. This article describes the method applied in the Ostrava-
Karviná district in the Czech Republic. As a passive form of protection, degasification
wells are the most commonly used method. According to the results of measurements
made in the course of a few years, it can be proven that using degassing wells leads to
the reduction in the concentration of leaking methane. Methods utilizing cogeneration
units have also been described. These units can contribute to the utilization of the
energy from these gases.

Keywords: closed mines, methane, coal, degasification wells, cogeneration.