using generation 3 polyamidoamine dendrimer (pamam g3)as adsorbent for the removal of pentavalent arsenic fromaqueous solutions

Authors

zeynab yavari environment research center, department of environmental health engineering, , school of health, isfahan university of medical sciences, isfahan, iran

mohammad mehdi amin environment research center, research institute for primordial prevention of non-communicable disease, isfahan university of medical sciences, isfahan, iran, and department of environmental health engineering, school 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

somayeh environment research center, isfahan university of medical sciences, isfahan, iran, and department of environmental health engineering, student research center , school 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.     methods: adsorption experiment was studied in batch system and the effect of different variables like 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 and contact time. the three models of isotherm included langmuir, freundlich and dubinin- radeshkuvich were studied that freundlich and langmuir isotherms were more compliant with results.     conclusion: according to results, can be concluded that adsorption with dendrimer is an appropriate method with high efficiency for removal arsenic from aqueous solutions.

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Journal title:
مجله بهداشت محیط و توسعه پایدار

جلد ۱، شماره ۱، صفحات ۳۳-۴۲

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