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Wednesday 20 November 2019
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Falda - Zona Satura

Pozzo di Ricircolazione della falda

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Thursday 05 November 2009

Ground Water Circulation Wells (GCWs) can be used in conjunction with other in situ remediation technologies to treat halogenated VOCs, semi-VOCs (SVOCs), pesticides, and petroleum products and their constituents such as benzene, toluene, ethyl benzene, and xylene (BTEX).

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DNAPL-Recovery

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Tuesday 29 July 2008

With a GCW it is possible to remove non-miscible liquids of higher density than water (DNAPL) from an aquifer. In order to remove dense non aqueous phase liquids (DNAPL) that have accumulated on the bottom of the aquifer, the GCW is operated in standard mode.  The DNAPL is  removed by means of a sensor-controlled, pneumatically-driven submersible pump. Thus it is made sure that just pure phase and no groundwater is extracted.

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LNAPL-Recovery

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Tuesday 29 July 2008
With a GCW it is possible to remove non-miscible liquids of lower density than water (LNAPL) from an aquifer.  In order to remove light non aqueous liquids floating on the groundwater, the GCW is operated in a reverse mode.  The LNAPL is  removed by means of a sensor-controlled, pneumatically-driven submersible pump. Thus it is made sure that just pure phase and no groundwater is extracted.
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Pozzo di Ricircolo (microbiologicamente assistito)

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Wednesday 02 April 2008

By means of different techniques oxygen, gas mixtures but also nutrient solutions can be added to the GCW circulation water. Thus, more oxygen-rich and contaminant-reduced groundwater circulates through the aquifer and stimulates microbiological degradation respectively creates better bio-availability. Metabolites impeding the growth of autochthonic microorganisms or the CO2 produced by the biological decomposition can be transported to the well with the groundwater and can be selectively removed there.

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Circolazione multipla

Stampa E-mail
Wednesday 02 April 2008
The achievable sphere of influence of a GCW-System depends on the distance of the two active screen sections, the anisotropy of the aquifer, the groundwater flow velocity and the selected pumping rate. The bigger the circulation cell is, the longer a water molecule needs to pass through the cell.
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Further Information iz
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To discuss IEG Technologie GmbH | Soil and Groundwater Remediation Specialists - Falda - Zona Satura or your individual in situ remediation requirements in detail, please click here to contact Dr. Eduard J. Alesi, Managing Director.

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