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Removal of Nitrate From Aqueous Solution Using Nanocrystalline Cellulose Publisher



Azadbakht P1, 2 ; Pourzamani H1, 3 ; Petroudy SRJ4 ; Bina B1, 3
Authors
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Authors Affiliations
  1. 1. Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
  2. 2. Student Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran
  3. 3. Environment Research Center, Research Institute for Primordial Prevention of Non-communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
  4. 4. Department of Cellulose and Paper Technology, Faculty of Energy and New Technologies Engineering, Shahid Beheshti University, Zirab Scientific and Research Campus, Tehran, Iran

Source: International Journal of Environmental Health Engineering Published:2016


Abstract

Aims: In this study, the removal of nitrate was investigated using nanocrystalline cellulose (NCC) extracted from sugarcane bagasse. Materials and Methods: NCC was extracted by acid hydrolysis of bagasse at 40°C for 45 min and then used as an absorbent for the removal of nitrate. The properties of absorbent were evaluated by atomic force microscopy and dynamic light scattering. The effect of various parameters including pH, initial concentration of nitrate, adsorbent dose, and exposure time was investigated on the removal of nitrate. Results: NCC was obtained in a diameter and length of <14.7 and 500 nm, respectively. Optimal conditions for removal of nitrate were determined in the initial nitrate concentration, adsorbent dose, pH, and exposure time of 100 mg/L, 6, 3 g/L, and 100 min, respectively. In optimal conditions, the maximum adsorption of nitrate was 8.33 mg/g. Conclusion: The highest efficiency of nitrate removal at pH, 6 was obtained as 25%. The results showed that the NCC, extracted from bagasse, could be used as a very effective adsorbent to remove nitrate from water and wastewater resources. © 2016 Medknow. All rights reserved.
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