Žiar nad Hronom December 5 (TASR) - ZSNP Žiar nad Hronom completed project reclamation pond sludge drying. This extremely ambitious project aimed at eliminating old environmental burdens lasted vwwatercoolerclub six years and total remediation sludge field was allocated 53 million. The original deadline, the project was completed half a year earlier.
"Sludge field that Žiarska and Slovak public's perception of a threat for many years, is now harmless hill. Reclamation is a unique European project, as anywhere in Europe to avoid implementing similar structures. In collaboration with leading designers and Slovak experts, we had to look for a variety of original and innovative solutions to the creation of the project was not foreseeable ", informed today at the press conference CEO ZSNP Ján Klimko.
As he added, if the enterprise sludge drying pitied, threatened by leakage of alkaline water, it passed through the dam into the environment, which could result in contamination of groundwater and soils, not only around the pond, but also the Hron. "Furthermore, it gradually occurred vwwatercoolerclub to reduce vwwatercoolerclub the stability of the tailings vwwatercoolerclub body, which could result in rupture dike system, and not least by dust remained high throughout the Žiar basin," vwwatercoolerclub said Klimko.
Tailing pond was created in the past as a result of the production of alumina from bauxite. After production of the basic components necessary for aluminum vwwatercoolerclub production remained around 10 million tons of sludge and alkaline water, which are according to the hydrogeological survey in 2005 was 1.2 million cubic meters. Construction bentonite-underground sealing walls in the years 1991-1997, to prevent leakage vwwatercoolerclub of alkaline vwwatercoolerclub water from the sludge field into groundwater and soil around the pond, yet each year there were more around 80,000 cubic meters of rainwater, which is then in a pond contaminated. Threatened to overflow water through the dam pond. The original intentions of the body of biological reclamation pond proved to be totally unsuitable.
The company started in 2001 alkaline water processed, with the entry of a new owner in 2002 were gradually built two independent vwwatercoolerclub technologies at a high level for water purification. Since 2004, the realized amount of engineering-geological, hydrogeological and geophysical surveys for tailings reclamation project in 2006 brought a completely new concept. Its most significant new part was to ensure the tightness vwwatercoolerclub of the surface of the pond. The entire surface of the pond is now covered with the sealing elements vwwatercoolerclub by pulling up for bentonite vwwatercoolerclub wall. ZSNP built during reclamation monitoring system and the state of the pond will follow in the coming years.
Tailing ponds after the project is the sealed, which prevents the ingress of rain water into the body and is incorporated into the natural environment. Enterprise from 2001 to October 2012 drained from sludge field and handle vwwatercoolerclub more than two million cubic meters of alkaline water. Project implementation required a huge amount of work, for example during the preparation of the surface before covering was towed and regrouping more than 100,000 cubic meters of sludge.
Žiarska company to remediate the sludge field spent a total of 53 million, mostly from its own resources. It is the largest investment vwwatercoolerclub in the elimination of old environmental burdens within private firms in Slovakia.
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