DBPapers

USE OF PHYTODECONTAMINATION PROCESS IN REGENERATION MEASURES TO DECREASE CONTENT OF UNDESIRABLE MATTERS IN DISCHARGED MINING WATERS OF THE NORTH BOHEMIAN BROWN COAL BASIN

AUTHOR/S: HALÍŘ, J.
Sunday 1 August 2010 by Libadmin2005

5th International Scientific Conference - SGEM2005, www.sgem.org, SGEM2005 Conference Proceedings/ ISBN: 954-918181-2, June 13-17, 2005, 365- 371pp

ABSTRACT

The former mine Obránců Míru and its inner dump is the area of interest situated in the
North-bohemian Brown Coal Basins at the North-western border of the Czech Republic. In
the course of the mine opening and continuous operation the hydrogeological conditions of
the outer environment were significantly impacted or totally changed by previous long-term,
first underground, later opencast coal mining. At the turn of the 20th and 21st century
abundant effluents of underground waters with low pH and high contents of dissolved
substances, sulphates, manganese and iron were recorded in the Southern part of the residual
pit. The waters from these effluents were carried off to the pools of the local pump station and
from here pumped to the recipient which is a waste runway of the river Bilina. By changing
the valid legislation to stipulate mine waters discharging into recipients it was necessary to
comply with the set valid limits. The aforementioned sulphates, manganese and iron were the questionable water quality indicators. In the year 2003 the set of regeneration measures was
implemented in the area of interest also using the process of phytodecontamination so the
discharged waters would conform to the set quality limits.