 |
|
|
Friday, 12. March 2010 |
|
|
Groundwater - Saturated Zone
|
Thursday, 5. November 2009 |
|
Beim klassischen "Pump-and-Treat"-Verfahren wird üblicherweise das Grundwasser aus einem oder mehreren Brunnen entnommen, in einer oberirdischen Anlage gereinigt und über die Kanalisation oder einen Vorfluter abgeleitet.
|
|
weiter … [Allgemeine Grundlagen der vertikalen Grundwasserzirkulation]
|
|
|
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.
|
|
weiter … [DNAPL-Recovery]
|
|
|
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.
|
|
weiter … [LNAPL-Recovery]
|
|
|
Wednesday, 2. April 2008 |
|
Biologische Sanierungstechniken unterstützen die natürlich ablaufenden Abbauprozesse im Untergrund und beeinflussen die Umwelt in der Regel daher nur wenig. Die Schadstoffe werden vollständig mineralisiert, eine Abluftbehandlung entfällt.
|
|
weiter … [Mikrobieller Abbau]
|
|
|
Wednesday, 2. 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.
|
|
weiter … [Stacked GCW]
|
|
|
Monday, 19. February 2007 |
|
A GCW can also be operated in a way that a certain quantity of water passing through the well shaft is pumped-off or infiltrated into it. Extracting exactly the same amount of water as the upstream into the well, the groundwater downstream from the well is blocked.
|
|
weiter … [GCW - Partial Extraction Technology]
|
|
|
|
| |
|
|
Applications 
