- Client: DuPont Polymers Powder Switzerland
- Completion date: 2010
PROJECT DESCRIPTION AND CHARACTERISTICS
A multi-species reactive transport model was developed to estimate the time required for attenuation of chlorinated solvents that pollute an industrial site.
Two main variants were modeled:
(1) natural attenuation of pollution by biodegradation and
(2) active treatment of the sources of pollution by injection of a stimulating solution
ASSIGNMENT
GEOS was in charge of:
- statistical processing of concentration data,
- validation of a permanent flow pattern in free groundwater,
- calibration of reactive multi-species transport parameters,
- sensitivity analysis on PCE degradation constants, TCE, TCE and CV,
- predictive simulations of evolution of the pollution for various scenarios including active treatment of all pollution source zones by injection of a substrate stimulating bacterial activity, responsible for the degradation of the chlorinated solvents.
- the feasibility study of active treatment.
