Phytoremediation of metals

Details Phytoremediation of metals Phytoremediation of metals

C - Chemistry, Metallurgy

12

N

C12N 15/82 (2006.01) A01H 5/00 (2006.01) B09C 1/00 (2006.01) B09C 1/10 (2006.01) C12N 5/10 (2006.01)

Patent

CA 2163665

A process for removal of metal ions from soil and methods for effecting such removal are described. The process is based on manipulating the growth of crop and crop-related members of the plant family Brassicaceae in metal-containing soils so that the metal in the soils is made more available to the plants. These particular plants will absorb metals into their roots making the metals non-leachable from the soils or will absorb the metal into their roots and transfer them to the shoots and/or roots which can be easily harvested.

Procédé d'extraction des ions métal contenus dans de la terre et procédés d'extraction associés. Le procédé consiste à manipuler la croissance des cultures et des éléments liés aux cultures de la famille de plantes Brassicaceae dans des sols contenant des métaux afin que le métal présent dans ces sols soit plus disponible pour les plantes. Ces plantes spécifiques absorbent les métaux dans leurs racines, les métaux ne pouvant plus par conséquent être lessivés des sols, ou bien elles absorbent le métal dans leurs racines et les transfèrent aux pousses et/ou aux racines qu'on peut facilement récolter.

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