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2. Phytoextraction: an opportunity for catalytic green chemistry
Phytoremediation is the use of living green plants to reduce, eliminate or contain in situ pollutants in soil, water, sediment or air. Several processes are possible:
phytoextraction: pollutants are extracted by plants and stored in their tissues (leaves or roots);
phytostabilization: this consists in covering soils with plant species capable of immobilizing pollution;
phytostimulation: root exudates encourage the development of microorganisms (bacteria and fungi) capable of biodegrading pollutants;
phytodecomposition: pollutants are transformed into less toxic compounds;
phytovolatilization: volatile pollutants are eliminated by evapotranspiration;
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Phytoextraction: an opportunity for catalytic green chemistry
Conclusion
Bibliography
Websites
EU pesticide database http://ec.europa.eu/sanco_pesticides/public/index.cfm
Rotterdam Convention – Share Responsibility (Feb. 2011) [Online] http://www.pic.int/home_fr.php?type=t=86=50=86
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Regulations
Council Directive 91/414/EEC concerning the placing of plant protection products on the market lays down rules and procedures for approval of the active substances at EU-level and for the authorisation at Member State level of plant protection products (PPP) containing these substances
Pollutec 2010 Lyon, 23rd edition http://www.pollutec.com/
...Patents
Utilisation de plantes accumulatrices de métaux lourds pour la mise en œuvre de réactions chimiques, CNRS international patent filed on November 26, 2009, n° PCT/FR2009/052312 ; Extensions internationales brevet CNRS filed on November 18, 2010, n° PCT/FR2010/052451 C. Grison, J. Escarré.
Events
The work presented in this article was selected by ADEME as part of the Innovative Techniques for the Environment program at Pollutec 2010.
Thanks
The authors would like to thank Eddy Petit (IEM UMR 5635) for producing the 31 P NMR spectra.
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