Pollution causes
The pollution of the Industrial Park in Eger was caused by various industrial and commercial activities carried out on the site, as well as by the waste that was illegally disposed there. The pollution detected in 2003 was also caused decades before, but its source cannot be identified at this time. Chlorinated hydrocarbons and hydrocarbons have contaminated the geological layers and subsurface waters on an area of almost 15 hectares.
The recultivation project
The project goal is the on-site purification of groundwater from acidic chlorinated hydrocarbons. The general disposal technology of this pollution — which can be easily localised because of its type — is carried out by injecting microbiological, as well as nano and micro iron reagents in the polluted area, which chemically transform the pollution and make it decomposable under natural conditions. As a result, the cleaned industrial zone becomes suitable for further development, and the current risks to the groundwater in the area cease to exist.
Special project features
The remediation is carried out in an industrial park that is under continuous operation and requires special cooperation between the contractor and companies working there.
Injection of (iron containing) chalybeate reagents in groundwater using 1800 injection lances.
Main project data
Purification of groundwater polluted by industrial activity.
Treatment of VOCl (chlorinated hydrocarbon) pollution in 80,000 m3 groundwater.
Treatment of TPH (hydrocarbon type polluting agent) in 10,000 m3 groundwater.
Operation of 34 monitoring wells for 21 months.
Break-up and sorting of 12,500 m3 concrete pavement.
Time period: from 2013 to 2015
Financing: EU support: 100%
Project codename: KEOP-2.4.0/2F/09-11-2011-0008
Client: The City Council of Eger City with County Rights
Total project value: approx. €2.6 million
Pollution causes
The pollution of the Industrial Park in Eger was caused by various industrial and commercial activities carried out on the site, as well as by the waste that was illegally disposed there. The pollution detected in 2003 was also caused decades before, but its source cannot be identified at this time. Chlorinated hydrocarbons and hydrocarbons have contaminated the geological layers and subsurface waters on an area of almost 15 hectares.
The recultivation project
The project goal is the on-site purification of groundwater from acidic chlorinated hydrocarbons. The general disposal technology of this pollution — which can be easily localised because of its type — is carried out by injecting microbiological, as well as nano and micro iron reagents in the polluted area, which chemically transform the pollution and make it decomposable under natural conditions. As a result, the cleaned industrial zone becomes suitable for further development, and the current risks to the groundwater in the area cease to exist.
Special project features
The remediation is carried out in an industrial park that is under continuous operation and requires special cooperation between the contractor and companies working there.
Injection of (iron containing) chalybeate reagents in groundwater using 1800 injection lances.
Main project data
Purification of groundwater polluted by industrial activity.
Treatment of VOCl (chlorinated hydrocarbon) pollution in 80,000 m3 groundwater.
Treatment of TPH (hydrocarbon type polluting agent) in 10,000 m3 groundwater.
Operation of 34 monitoring wells for 21 months.
Break-up and sorting of 12,500 m3 concrete pavement.
Time period: from 2013 to 2015
Financing: EU support: 100%
Project codename: KEOP-2.4.0/2F/09-11-2011-0008
Client: The City Council of Eger City with County Rights
Total project value: approx. €2.6 million
