Environmental & Analytical Toxicology

Odey Emmanuel Alepu

Publications

• Research Article
  Adsorption and Desorption of Lead (Pb) in Sandy Soil Treated by Various Amendments
  Author(s): Loissi Kalakodio, Odey Emmanuel Alepu and Abraham Amenay ZewdeLoissi Kalakodio, Odey Emmanuel Alepu and Abraham Amenay Zewde
  
  The ability of sandy soil to adsorb lead (Pb) to limit its dispersion in environmental compartments and its adverse effects on humans and ecological receptors depends on certain reaction parameters. The sandy soil has a low Pb retention capacity, but treatment of this soil with amendments such as bentonite, crabmeal and eggshells could significantly improve its ability to adsorb the Pb. To this end, various sorbent tests of Pb by sandy soils, soil amendments and soil+amendments have been carried out in a static mode in the laboratory. The adsorption parameters tested are: reaction time, volume/mass ratio, temperature, increasing Pb (II) concentrations, nature and type of amendment. Furthermore, it was under thermodynamic control and was endothermic in the case of an increase in adsorbed and exothermic Pb levels as they decreased. Moreover, the adsorption of Pb obeys the Langmuir model.. Read More»
  DOI: 10.4172/2161-0525.1000514

  Abstract PDF