Elimination of lead and copper from water by Juncus fontanesii
Written by sctunisie no commentsWe have used Juncus fontanesii to eliminate the lead and copper from pure aqueous solutions containing these metals at 50, 100, 150 and 300mg/l. The densities of the fresh biomass were 2.8 and 5.6 kg/m2. This study, without adding nutritive elements, shows that we can eliminate more than 99% of lead within 3 to 12 days and copper within 12 to 21 days. 50 to 80 % of the metal are fixed by the roots, the remaining is located at the leafs and stems. When the concentration is higher than 100 mg/I, plant releases part of the copper to the medium. During the experiment the plants did not display any visual sign of perturbation.
M.A. Oueslati, M. Haddad
lead, copper, heavy metals, Juncus fontanesii, aquatic plants
Pages 37-45
