• The Removal of Pb(II) by River Watari Sediment, Kano, Nigeria: A Thermodynamic and Kinetic Approach   [EPPH 2015]
  • Author(s)
  • Ayuba Abdullahi
  • The presence of heavy metals in the aquatic environment has been a big deal of problem to scientists due to their increased discharge, toxic nature, and other adverse effects on receiving waters. Even a very low concentration of lead in water is very toxic to aquatic life. The main sources of lead in water are the effluents of processing industries. It has been established that lead poisoning in human causes severe damage to the kidney, nervous system, reproductive system, liver, and brain resulting to sickness or death. The present research was aimed at modelling the use of sediment as an adsorbent for the removal of Pb2+ ions by adsorption to obtain equilibrium, kinetics and thermodynamic parameters through the use of batch equilibrium techniques. The experimental results show that the equilibrium contact time was obtained within 60 minutes and the maximum adsorption capacity was found at 2g sediment dosage and 1M Pb(NO3)2 system. The dynamic data fitted the pseudo-second-order kinetic model well. The Linear and Freudlich isotherms model agrees well with the equilibrium experimental data. The thermodynamic parameters were also deduced for the adsorption of Pb2+ ions onto sediment and the results show that the adsorption was spontaneous and exothermic, while the mechanism was proposed to be physisorption.
  • Pb(II) , River Watari Sediment, Kano, Nigeria
  • References

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