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Determination of Fluoride Biosorption From Aqueous Solutions Using Sargassum Hystrix Algae Publisher



Dobaradaran S1, 2, 3 ; Babaei AA4, 5 ; Nabipour I6 ; Tajbakhsh S1 ; Noshadi S2 ; Keshtkar M2 ; Khorsand M2 ; Esfahani NM7
Authors
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Authors Affiliations
  1. 1. The Persian Gulf Marine Biotechnology Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr, Iran
  2. 2. Department of Environmental Health Engineering, Faculty of Health, Bushehr University of Medical Sciences, Bushehr, Iran
  3. 3. Systems Environmental Health, Oil, Gas and Energy Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr, Iran
  4. 4. Environmental Technologies Research Center (ETRC), Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
  5. 5. Department of Environmental Health Engineering, School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
  6. 6. The Persian Gulf Tropical Medicine Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr, Iran
  7. 7. Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran

Source: Desalination and Water Treatment Published:2017


Abstract

The aim of this study was to determine Sargassum hystrix algae’s efficiency in fluoride removal from aqueous solutions. In a series of batch experiments, the experimental parameters were studied using the dried algae: initial biosorbent dose (0.8–64 g/L), initial fluoride concentration while the mass of biosor-bant dose (g/L) ratio to initial fluoride concentration (mg/L) was fixed at 5 ratios in the range of 400–8,000, contact time, pH, activation temperature and the presence of competing anions. The highest removal biosorption was at 40 g/L of biosorbent at 60 min contact time and initial fluoride concentration of 5 mg/L (100% fluoride removal); competing anions and activation temperature had no significant effect on the fluoride biosorption by biosorbent. The biosorption was found to be better fitted to the Freundlich model and follows a pseudo-second-order kinetic model. Finally, it was concluded that the Sargassum hystrix algae can be used as an environmental friendly, cheap and effective biosorbent from aqueous solutions. © 2017 Desalination Publications. All rights reserved.
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