APLICACIÓN DE LA BIOMASA DE Eichhornia crassipes EN LA REMOCIÓN DE Cd+2 EN AGUAS CONTAMINADAS POR DESECHOS INDUSTRIALES

Abstract

The objective of this work was to determine the removal of Cadmium (II) in solution aqueous by the biomass of the aquatic lily or water hyacinth (Eichhornia crassipes) by the Dithizone colorimetric method, under laboratory conditions, with different parameters such as pH, incubation time, temperature, concentration of the metal and biomass. The optimum conditions for removal were found to be a pH of 6.0, 28°C, and a concentration of 50 mg/L of the metal, 5 g of biomass and 32 hours of incubation. In addition, 5 g of biomass removes 54.2% of Cadmium (II) from water contaminated with 100 mg/L of the metal after 7 days of incubation at 28oC, while the living plant removes 16.2% of the metal (50 mg/L) after 4 weeks at 28°C under static conditions.

Keywords

• removal
• aquatic lily
• cadmium (ii)
• dithizone