Dépollution des eaux usée des métaux lourds par un ligand de synthèse.

Abstract

The objective of the work carried out in this thesis is the elimination of heavy metals by complexation / adsorption using a new organic ligand N, N '- (Iminodi-2,1-ethanediyl) bis (2-hyd roxybenzamide) (H4L1) . The choice of ligand synthesized was made for its polydentate structure, with several potential donor sites capable of chelating heavy metals in water. The kinetic studies of adsorption studied on N, N '- (Iminodi-2,1-ethanediyl) bis (2- hyd roxybenzamide) (H4L1) show that these last ligand are good adsorbents of metallic pollutants in aqueous solution . This result has been confirmed in the context of depollution of waste water.