NO752615L

An oil storage tank above ground level rests on porous layers surrounded by an airtight vertical partition wall. A vacuum pump and a vacuum container outside are connected by a pipe to the centre of the concave tank bottom so that a vacuum can be created under it to extract air, ground water and any...

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Bibliographische Detailangaben
1. Verfasser: ANDERSEN LARS JORGEN
Format: Patent
Sprache:eng
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Zusammenfassung:An oil storage tank above ground level rests on porous layers surrounded by an airtight vertical partition wall. A vacuum pump and a vacuum container outside are connected by a pipe to the centre of the concave tank bottom so that a vacuum can be created under it to extract air, ground water and any leakage oil. This is a simple and reliable method of eliminating any contamination of ground water supplies.