Initiatives & Projects
IN SITU STIMULATION AND REMEDIATION OF CONTAMINATED FRACTURED SOILS
- This project proposes pre-normative work aiming to design on site soil
stimulation techniques for the cost-effective in situ remediation of
NAPL-contaminated fractured soils of low permeability. Field-scale studies
will be performed on fractured clay till site that has been heavily
contaminated by NAPL. Integrated methods of multi-scale characterisation of
fractured media will be employed to establish
regional and local hydrological/geological models, and quantify the existing
fracture networks. Chemical analyses on soil and groundwater samples and
predictions of an existing macroscopic simulator of NAPL transport in
fractured media (SIMUSCOPP) will set the initial conditions of
contamination.
Project number | 4017 | ||
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Subject(s) | ANALYSIS AND TESTS , HEALTH - HYGIENE - PATHOGENIC MICROORGANISM , HYDRAULICS - HYDROLOGY , PREVENTION AND NUISANCES POLLUTION | ||
Acronym | STRESOIL | ||
Geographical coverage | Denmark, Greece, France, Poland | ||
Budget (in €) | 2124430 | ||
Programme | INCO MED (FP6) | ||
Web site | http://www.stresoil.com/ | ||
Objectives | - The microbiological activity will be identified to evaluate the soil/water
capacity for NAPL biodegradation. Hydraulic fracturing on three sites will
be made and three soil stimulation scenarios differing with respect to the
remediation methodology, will be carried out on all sites. The most adequate
strategy will be recommended. From micro-structural properties/hydrodynamic
conditions /fluid properties, and using lab-scale techniques/computational
methods of the statistical physics of disordered media, the effective
transport coefficients of four soil components will be determined: clay
till, sand, natural fractures, artificial hydrau- lic fractures. From the
local properties, the up-scaled transport coefficients will be determined
and introduced as input data in the SIMUSCOPP simulator. The SIMUSCOPP will
be extended to take into account (i) the artificial hydraulic fractures, and
(ii) various remediation scenarios. Monitoring of the chemical status of
soil and groundwater, and numerical predictions of the updated simulator will form databases which, in combination with cost benefit analysis, will enable us to set the criteria for the selection of the most cost-effective strategy of stimulation/remediation on similar NAPL contaminated sites. |
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Period | [01/06/2004 - 01/06/2007] |