Removal of Cobalt (II) from Waters Contaminated by the Biomass of Eichhornia crassipes

Due to the increase in contamination of aquatic niches by different heavy metals, technologies have been studied eliminate these pollutants from contaminated sources. So objective this work was determine removal cobalt (II) aqueous solution biomass lily or water hyacinth (Eichhornia crassipes) which, is one main weeds present fresh water, due its rapid reproduction, growth, and high competitiveness, colorimetric method methyl isobutyl ketone. The evaluated at pHs (4.0–8.0) for 28 h. effect temperature range 20 °C 50 initial concentrations 100 500 mg/L also studied. highest bioadsorption (100 mg/L) h, pH 5.0 °C, with a capacity 73.1%, which like some reports literature. Regarding temperature, 89%. At metal analyzed, 82% 400–500 mg/L, 100% 5 g natural In addition, completely removes situ 7 days incubation, 10 mL). So, can be used remove it industrial wastewater, even if vivo, only 17.3% 4 weeks.