Schlüsselwörter
(Englisch)
|
Bioremediation; natural attenuation; chlorinated ethenes; reductive dechlorination; anaerobic oxidation; molecular ecology;
Environmental Protection; Waste Management
|
Alternative Projektnummern
(Englisch)
|
EU project number: EVK1-CT-2001-00087
|
Forschungsprogramme
(Englisch)
|
EU-programme: 5. Frame Research Programme - 1.4a.1 Sustainable management and quality of water
|
Kurzbeschreibung
(Englisch)
|
See abstract
|
Weitere Hinweise und Angaben
(Englisch)
|
Full name of research-institution/enterprise:
EPF Lausanne
ENAC-ISTE /
Laboratoire de biotechnologie environnementale (LBE)
|
Partner und Internationale Organisationen
(Englisch)
|
University of Sheffield (UK), University of Tübingen (D), Technical University of Denmark, Copenhagen (DK), Universita degli Studi di Ferrara (I), TNO Appeldoorn (NL), Charles University of Prague (CZ), Queen's University of Belfast (IRL), Delft Technical University, (NL), Geosyntec (UK)
|
Abstract
(Englisch)
|
Short summary:
The goal of CORONA is to increase confidence in assessment and forecasting of natural attenuation (NA) of groundwater pollution by strengthening the scientific basis which supports the use of NA as risk assessment tool; providing simple but robust engineering tools for assessment and quantification of NA as a remedial approach for groundwater pollution; and by promoting the use of these tools in the end-user community of problem holders, regulators and advisors. To reach these goals the project will test new hypotheses on plume behaviour arising from recent research. For this, multi-disciplinary research will be carried out on 6varied field sites and in the laboratory and numerical modelling will be used to link scales and transfer results to non-research sites. The project will work with end-users to transfer the research results to user-friendly guidelines and models, including an interactive training package based on the project results.
Scientific objectives and approach:
The quantifiable objectives, which will enable us to do this, are as follows:
1. Collect high-resolution, high quality data from the 'corona' zones of different several plumes.
2. Identify and quantify the controlling corona zones and processes at the field sites. 3. Confirm the controlling processes and parameter values at lab scale.
4. Develop and validate numerical tools for site interpretation and extrapolation to new sites.
5. Validate the corona conceptual model and parameter values against data from sites outside the project.
6. Create a performance model for forecasting natural attenuation in a range of scenarios from limited data.
7. Develop guidelines to encourage the appropriate use of natural attenuation as a risk-management strategy.
8. Actively disseminate the project results to end-users.
Problems to be solved:
The goal of CORONA is to increase confidence in assessment and forecasting of natural attenuation (NA) of groundwater pollution by strengthening the scientific basis which supports the use of NA as risk assessment tool; providing simple but robust engineering tools for assessment and quantification of NA as a remedial approach for groundwater pollution; and by promoting the use of these tools in the end-user community of problem holders, regulators and advisors. To reach these goals we propose to confirm new hypotheses on plume behaviour arising from our recent research. For this we will carry out multi-disciplinary research on 6 varied field sites and in the laboratory and to use numerical modelling to link scales and transfer results to non-research sites. We will work with end-users to transfer the research results to user-friendly guidelines and models, including an interactive training package based on the project results.
Expected Impacts:
The complete cleanup of groundwater pollution by interventionist technologies has many technical difficulties and incurs high costs. The natural processes of sorption, chemical reaction, biodegradation, volatilisation and dispersion have the potential to reduce concentrations/fluxes to such low levels that the risks from the pollution are insignificant, and active cleanup can be avoided. These processes are collectively called natural attenuation. NA would be more widely accepted if its effects could be forecast more reliably. This project will establish robust long-term tools for forecasting natural attenuation for a range of scenarios. A common pattern of biodegradation activity can be found in most plumes. Certain zones - here called the CORONA - have better conditions for biodegradation, have more rapid degradation, and make a significant contribution to the overall rate of mass loss. The project will collect high-resolution data from 6 varied field sites. Parallel laboratory studies will include a model plume for analysis of transverse dispersion and detailed study of a corona zone. There will be microbiological and microcosm studies in support. Numerical modelling tools will be developed to link scales and transfer results to non-research sites. We will work with end-users to transfer the research results to user-friendly guidelines and models.
|
Datenbankreferenzen
(Englisch)
|
Swiss Database: Euro-DB of the
State Secretariat for Education and Research
Hallwylstrasse 4
CH-3003 Berne, Switzerland
Tel. +41 31 322 74 82
Swiss Project-Number: 01.0119
|
