KEOpS - SITA REMEDIATION

Keops
®
reactive barrier
Innovative technology does not require energy
Until 1992, the basement of a solvent regerneration plant located in Switzerland has been
polluted by leaks of chlorinated solvents.
The origin of the pollution was under control but the water continued to be polluted by a
mixture of chlorinated solvents that authorities wanted to eliminate in agreement with the
Swiss Federal department
Méthodology
The solution is the construction of a
physical barrier with doors (Keops ®
process).
This procedure guarantees the absence
of pollution below the barrier and allows
the in situ treatment of groundwater at
a reduced cost, including land of low
permeability and complex configurations.
Doors installed in the barrier is
composed of three parts:
• Pre-treatment
• Treatment
• post-treatment
SITA REMEDIATION
la terre au sens propre®
the expert
in soil remediation
Processing solution in the long key datas
term pollution by chlorinated
80
compounds.
m length
2
m3 de volume of reagent
Abatements levels :
• Vinyl chloride :
• Laboratory testing to determine the
performance of a catalytic reagent.
• Modelling of water (water flow and
spread of pollutants) to determine the
flow of water passing through the gates
and the concentrations of pollutants.
3 0,2
199 2
25 0,2
9 0,2
to
μg/l
• Dichlorethylene :
to
• Perchlorethylene :
• Trichlorethane :
to
to
barrier construction
• Implementation of the barrier wall with
installation of sheet piles and grouting.
• Installation of doors.
• Installation of water treatment reactors.
• Measurement and control of flows
and concentrations upstream and
downstream of the barrier.
μg/l
Contact
SITA Remediation SAS
17, rue du Périgord
F-69330 MEYZIEU - FRANCE
Tel : +33 (0)4 72 45 02 22
Fax : +33 (0)4 78 04 24 30
www.sitaremediation.fr
μg/l
μg/l
Document non contractuel - 10/08 - photo, illustration : SITA - ®Liber Mundi.
studies
SITA REMEDIATION
la terre au sens propre®