Realization
Permeable reactive barriers (PRB) - sustainable management of contaminated water flow
Article REF: G2641 V1
Realization
Permeable reactive barriers (PRB) - sustainable management of contaminated water flow

Authors : Annette ESNAULT-FILET, Bertrand SOYEZ

Publication date: April 10, 2007 | Lire en français

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2. Realization

2.1 Continuous drainage trench

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2.1.1 Production method

The method used depends on the depth of the aquifer to be intercepted.

If the depth is less than 10 meters, one method is to excavate a "dry" trench with a backhoe and fill it with filter material. However, this method reaches its operating limits depending on :

  • the stability of the trench walls, which may require the excavation to be lined;

  • the size of the...

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