Using Generation 3 Polyamidoamine Dendrimer as Adsorbent for the Removal of Pentavalent Arsenic from Aqueous Solutions

Authors

  • Farzaneh Mohamadi Environment Research Center, Isfahan University of Medical Sciences, Isfahan, Iran, and Department of Environmental Health Engineering, Faculty of Health, Isfahan University of Medical Sciences, Isfahan, Iran.
  • Hassan Izanloo Research Center for Environmental Pollutants and Department of Environmental Health Engineering, Health Faculty, Qom University of Medical Sciences, Qom, Iran.
  • Mohammad Mehdi Amin Environment Research Center, Research Institute for Primordial Prevention of Non-communicable disease, Isfahan University of Medical Sciences, Isfahan, Iran.
  • Somayeh Rahimi Environment Research Center, Isfahan University of Medical Sciences, Isfahan, Iran, and Department of Environmental Health Engineering, Faculty of Health, Isfahan University of Medical Sciences, Isfahan, Iran.
  • Zeynab Yavari Environment Research Center, Department of Environmental Health Engineering, Faculty of Health, Isfahan University of Medical Sciences, Isfahan, Iran.
Abstract:

Introduction: Arsenic is known as a carcinogenic compound in drinking water. It can cause acute and chronic effects on human health. In this study, the effect of polyamidoamine dendrimer generation 3 (PAMAM G3) as adsorbents for removal of arsenic (V) from aqueous solutions was evaluated. Materials and Methods: Adsorption experiment was studied in batch system and the effect of different variables such as pH, contact time, concentrations of arsenic and adsorbent dosage on adsorption was studied. Therefore, absorption kinetics and equilibrium isotherms were determined. Results: The results showed that adsorption process is affected by some parameters such as initial concentration, adsorbent dose and contact time. The three models of isotherm including Langmuir, Freundlich and Dubinin- Radeshkuvich were studied while Freundlich and Langmuir isotherms were more compliant with results. Conclusion: According to the results, it can be concluded that adsorption with dendrimer is an appropriate method with high efficiency for arsenic removal from aqueous solutions.

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Journal title

volume 1  issue 1

pages  28- 36

publication date 2016-06

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