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4. Laboratory-scale experimentation
Laboratory-scale experimentation is designed first and foremost to select the oxidant and quantify the doses of reagents required, thus providing the first essential elements for sizing. On this scale, if possible, the oxidant consumption by the NOD water or soil matrix can also be evaluated. Finally, we can measure various parameters under controlled conditions, such as pH or temperature variations, or even quantify the release of metals if the soil is highly polluted with metals.
4.1 Evaluation of oxidizer efficiency
For a given pollution situation, one or more oxidants are chosen according to the pollutant's reactivity. The preceding paragraph gives an initial overview of the correspondences between pollutants and common oxidants. If necessary, additional...
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Unit operations. Chemical reaction engineering
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Laboratory-scale experimentation
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Bibliography
- ITRC - Technical and regulatory guidance for in situ chemical oxidation of contaminated soil and groundwater (Guide technique et réglementaire pour l'oxydation chimique in situ des sols et nappes contaminés). - 2 nd ed., ISCO-2, DC, Interstate Technology and Regulatory Council, in situ Chemical Oxidation...
Websites
Agence de l'Environnement et de la Maîtrise de l'Énergie, polluted sites and soils section http://www2.ademe.fr/
Agence de l'Environnement et de la Maîtrise de l'Énergie, polluted sites and soils/groundwater treatment techniques/chemical oxidation/examples
Events
International congress-exhibition on soils, sediments and water: Intersol, Paris every year at the end of March http://www.intersol.fr
Contaminated Site Management in Europe conference, held every year in a European city at the end of November http://www.redoxtech.com
...Standards
- Standard test method for estimating the permanganate natural oxidant demand of soil and aquifer solids - ASTM-D7262 - 2007
- Soil quality – services for polluted sites and soils Part 4: requirements for remediation services - NF X 31-620 - 2011
Regulations
There are no specific regulations governing soil and aquifer treatment techniques. The decree of 17/07/09 on measures to prevent or limit the introduction of pollutants into groundwater specifies that the introduction of certain substances into the environment is prohibited. These substances are listed in appendices 1 and 2. However, a paragraph specifies that :
"The provisions of article R. 212-9-1...
Directory
Companies
A number of companies in France use chemical oxidation treatment. Consult the Union des Professionnels de la Dépollution des Sites (Union of Site Remediation Professionals), the trade association for professionals in the polluted sites and soils sector. http://www.upds.org/
Organizations
French Environment and...
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