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Nitrate Removal From Aqueous Solutions Using Granular Activated Carbon Modified With Iron Nanoparticles



Kamarehie B1 ; Aghaali E2 ; Musavi SA3 ; Hashemi SY4 ; Jafari A1
Authors
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Authors Affiliations
  1. 1. Nutrition Health Research Center, Department of Environment Health, School of Health and Nutrition, Lorestan University of Medical Sciences, Khorramabad, Iran
  2. 2. Department of Environment Health, Lorestan University of Medical Sciences, Khorranabad, Iran
  3. 3. Department of Environment Health, Faculity of Health, Kermanshah University of Medical Sciences, Kermanshah, Iran
  4. 4. Department of Environment Health, Faculity of Health, Tehran University of Medical Sciences, School of Health, Tehran, Iran

Source: International Journal of Engineering# Transactions B: Applications Published:2018

Abstract

Nitrate contamination of water resources and the growing concentration of nitrate endanger human health and the environment and considering its reduction strategies from water resources is important. The aim of this study was to investigate the possibility of granular activated carbon from grape wood coated with iron nanoparticles to remove nitrate from aqueous solutions. The results showed that more than 99% of the nitrate was removed from the solution using granular activated carbon/nanoparticles zero valence iron (GAC/NZVI). The nitrate adsorption process by GAC followed the Freundlich isotherm (R2 = 0.95) and NZVI and GAC/NZVI followed Langmuir isotherm (R2 = 0.96). Furthermore, the kinetic studies of all three adsorbents in the nitrate adsorption showed the highest correlation with the pseudo-second order equation. According to the results of this study, it can be stated that activated carbon derived from grape wood coated by iron nanoparticles as a relatively cheap and abundant adsorbent is efficient in nitrate removal from water. © 2018 Materials and Energy Research Center. All rights reserved.
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