Combined Hydraulic and Microbiological In-Situ Remediation on Vienna Central Station

In the course of the complete teardown of the area of the former southern and eastern railway stations of Vienna and its complete redesign as a new central railway station of Vienna a substantial diesel contamination was detected. In the perspective of a sustainable solution ÖBB decided to eliminate this spill. For this purpose, initially around 4,500 m³ pollutant-containing soil were excavated and disposed. The remaining area was cleaned by an in situ remediation.

Due to a very restrained time frame for the in situ treatment a combined hydraulic and biologicalsolution seemed the best choice. Therefore a combination of pump and treat, several oilphase skimmers, a bioventing, a biosparging and an in situ soil wash was implemented within a period of two years only! A total of around 20,500 liters pure liquid diesel could be removed from the groundwater.



Copyright: © Lehrstuhl für Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben
Source: Depotech 2014 (November 2014)
Pages: 1
Price: € 0,00
Autor: Judith Engel
Hans-Peter Weiss

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