TVK_Akzo - Environmental remediation, fitoremediation - Biocentrum Ltd.

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    In the territory of the AKZO-NOBEL, in Tiszaújváros, where used to be paint, synthetic resin, solvent and diluent production, several environmental assessments were carried out in accordance of the assignments given by the Tisza Vegyi Kombinát Inc. The prior environmental geological report was prepared by KGI, in the area of a yet to be built 3000 m2 warehouse the survey was carried out by Geohidroterv Ltd., and a bigger-scale study of the area was prepared by the Földtani kutató és Fúró Ltd. (Geological Investigation and Drilling Ltd.). The final, more detailed surveys were made by our company during the planning and establishment phase of the remediation system.
    As a result of the surveys a significant hydrocarbon contamination was found in two areas in the shallower sandy, gravelly formations. The contaminations were assumed to be originated from the synthetic resin factory and the north-eastern part of the tank farm.
    Groundwater treatment was carried out with a sand and emulsion separator tank, air-stripping technology, and a special pump used with compressed air to skim the floating free phase hydrocarbons. Soil treatment was accomplished with soil-degassing, and the injection of enzymatic fluids with the help of injection and air-sparging wells.
    During our operations 4 045 062 m3 groundwater was yielded and purified, and more than 60 m3 floating oil was skimmed. The contamination was completely eliminated, which was confirmed by the follow-up monitoring as well.
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