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Adsorption Process for Wastewater Treatment by using Coconut Shell

Author Affiliations

  • 1CivilEngineering Department Z.H. College, Faculty of Engineering and Technology. A.M.U.,Aligarh. INDIA
  • 2Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, IRAN

Res.J.chem.sci., Volume 4, Issue (12), Pages 1-8, December,18 (2014)


Adsorption of heavy metal on the solid surfaces is an important technique to remove them from the industrial wastewaters. The purpose of the present study is to evaluate the ability of agro-waste material coconut shell to remove Cr (VI) from wastewater. The extant of removal was found to be dependent on pH, contact time, adsorbent dose, concentration of metal and particle size. The adsorption follows a first order kinetics. The adsorption process is endothermic with a maximum adsorption of 83 percent at 30oC for an initial concentration of 50 mg/l at pH 1.5. Thermodynamics parameters indicate the feasibility of the process. Column studies have been carried out to compare these with batch capacities.


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