1- Research Center for Environmental Determinants of Health, Kermanshah University of Medical Sciences, Kermanshah, Iran Department of Environmental Health Engineering, School of Health, Iran University of Medical Sciences, Tehran, Iran 2- Department of Environmental Health Engineering, School of Health, Iran University of Medical Sciences, Tehran, Iran 3- Department of Environmental Health Engineering, School of Health, Iran University of Medical Sciences, Tehran, Iran Student’s Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran , email@example.com 4- Department of Environmental Health Engineering, School of Health, Jundishapur University of Medical Sciences, Ahvaz, Iran 5- Pars Logistic Service. HSE officer. Mehr Petrochemical Co. Pars Especial Economic Energy Zone. Assaluyeh. Iran
Abstract: (1708 Views)
Background: Fluoride in low concentrations is useful for human health. However, high concentrations of this substance is associated with problems such as fluorosis and Alzheimer's. Adsorption is efficient technique in removal of this pollutant. The aim of this study was to extraction and optimization of Chitosan as a natural biosorbent in fluoride removal.
Materials and Methods: In present study, magnetized chitosan-iron oxide nano particles was prepared by co-precipitation method and its characteristics were determined by SEM, XRD, TEM and FTIR analyzes. Subsequently, the effect of magnetized chitosan was assessed as an adsorbent in fluoride removal from water solution in the batch system with considering various parameters included pH, contact time, adsorbent dosage, initial Fluoride concentration and solution temperature. The Langmuir and Freundlich isotherm models and pseudo first-order and pseudo second-order kinetics were used to examine experimental data.
Results: The results showed that the Fluoride adsorption have followed Langmuir (R2>0.982) and kinetic model of pseudo second-order (R2>0.931). The maximum adsorption capacity of Fluoride was 22.756 mg/g at optimized condition, pH 50 adsorbent dose of 1g/L at 500C. Investigation of thermodynamically parameters and positive value of ΔH0 indicatethat this process was endothermic.
Conclusion: Generally, we can report that t he magnetic chitosan was used as a useful sorbent for the removal of pollutants from water and wastewater due to advantages such as easy and rapid separation from solution and high removal efficiency.
Type of Study: Original |
Subject: Public Health Received: 2016/09/7 | Accepted: 2016/09/7 | Published: 2016/09/7
1. Namavar S, Nasseri S, Mahvi AH, et al. Fluoride removal from water by reverse osmosis membrane. Water Wastewater 2013; 24(3): 137-42. (Persian) [Google Scholar]
2. Prabhu SM, Meenakshi S. Synthesis of metal ion loaded silica gel/chitosan biocomposite and its fluoride uptake studies from water. J Water Proc Eng 2014; 3: 144-50. [Google Scholar]
3. Kalantary R, Jorfi S, Esrafili A, et al. Comparison the efficiency of alum and commercial poly aluminum chloride for fluoride removal from water. Iran Occu Health J 2010; 6(4): 55-61. (Persian) [Google Scholar]
4. Mohseni-Bandpi A, Kakavandi B, Rezaei Kalantary R, et al. Development of a novel magnetite-chitosan composite for the removal of fluoride from drinking water: adsorption modeling and optimization. RSC Advances 2015; 5(89): 73279-89. [Google Scholar]
5. Shahriari T, Azizi M, Sharifzadeh GR, et al. Evaluation of fluorine concentration in drinking-water sources in South Khorasan (2008-2009). J Birjand Univ Med Sci 2010; 17(1): 33-41. (Persian) [Google Scholar]
6. Dobaradaran S, Ranjbar Vakil Abadi D, Mahvi H, et al. The Effect of Fluoride Drinking Water Content and Elevation above Sea on Child Dental Caries in Borazjan Villages. Iran South Med J 2010; 13(2): 102-7. (Persian) [Google Scholar]
7. Rahmani H, Rahmani A, Rahmani K, et al. Adsorption of fluoride from water by activated zeolite with lanthanum(La3). J North Khorasan University Med Sci 2011; 3(4): 63-70. (Persian) [Google Scholar]
8. Samadi MT, Nourozi R, Azizan S, et al. Servey impact of activated alumina in fluoride concentration peresent in water and appointment adsorption isotherm and kinetics. Iran J Health Environ 2009; 2(3): 224-31. (Persian) [Google Scholar]
9. Viswanathan N, Meenakshi S. Enhanced fluoride sorption using La(III) incorporated carboxylated chitosan beads. J Coll Interface Sci 2008; 322(2): 375-83. [PubMed] [Google Scholar]
10. Jorfi S, Rezaei Kalantary R, Mohseni Bandpi A, et al. Fluoride removal from water by adsorption using bagasse, modified bagasse and chitosan. Iran J Health Environ 2011; 4(1): 35-48. (Persian) [Google Scholar]
11. Viswanathan N, Sundaram CS, Meenakshi S. Sorption behaviour of fluoride on carboxylated cross-linked chitosan beads. Colloids Surfaces B Biointerfaces 2009; 68(1): 48-54. [PubMed] [Google Scholar]
12. Wang J, Chen C. Chitosan-based biosorbents: Modification and application for biosorption of heavy metals and radionuclides. Bioresource Technol 2014; 160: 129-41. [PubMed] [Google Scholar]
13. Mi FL, Wu SJ, Lin FM. Adsorption of copper (II) ions by a chitosan–oxalate complex biosorbent. Int J Bio Macromol 2015; 72: 136-44. [PubMed] [Google Scholar]
14. Wu FC, Tseng RL, Juang RS. Enhanced abilities of highly swollen chitosan beads for color removal and tyrosinase immobilization. J Hazardous Mat 2001; 81(1-2): 167-77. [PubMed] [Google Scholar]
15. Jagtap S, Thakre D, Wanjari S, et al. New modified chitosan-based adsorbent for defluoridation of water. J Colloid Interface Sci 2009; 332(2): 280-90. [PubMed] [Google Scholar]
16. Kakavandi B, Kalantary RR, Esrafily A, et al. Isotherm, Kinetic and Thermodynamic of Reactive Blue 5 (RB5) Dye Adsorption Using Fe3O4 Nanoparticles and Activated Carbon Magnetic Composite. J Color Sci Technol 2013; 7: 237-48. (Persian) [Google Scholar]
17. Azari A, Gholami M, Torkshavand Z, et al. Evaluation of Basic Violet 16 Adsorption from Aqueous Solution by Magnetic Zero Valent Iron-activated Carbon Nanocomposite using Response Surface Method: Isotherm and Kinetic Studies. J Mazandaran Univ Med Sci 2015; 25(121): 333-47. (Persian) [Google Scholar]
18. Younes I, Rinaudo M. Chitin and Chitosan Preparation from Marine Sources. Structure, Properties and Applications. Marine Drug 2015; 13(3): 1133-74. [PubMed] [Google Scholar]
19. Rezaei Kalantry R, Jonidi Jafari A, Esrafili A, et al. Optimization and evaluation of reactive dye adsorption on magnetic composite of activated carbon and iron oxide. Desalination Water Treat 2015; 57(14): 1-12. [Google Scholar]
20. Karthikeyan G, Ilango SS. Fluoride sorption using Morringa Indica-based activated carbon. Iran J Enviorn Health Sci Eng 2007; 4(1): 21-8. [Google Scholar]
21. Ma W, Ya FQ, Han M, et al. Characteristics of equilibrium, kinetics studies for adsorption of fluoride on magnetic-chitosan particle. J Hazardous Materials 2007; 143(1-2): 296-302. [PubMed] [Google Scholar]
22. Jagtap S, Yenkie MK, Das S, et al. Synthesis and characterization of lanthanum impregnated chitosan flakes for fluoride removal in water. Desalination 2011; 273(2-3): 267-75. [Google Scholar]
23. Salahi AMA, Asjedi F. The study of kinetics and thermodynamics remove fluoride ions from aqueous solutions using nanostructured HA. Ceramic Sci Eng 2014; 3: 21-34. (Persian) [Google Scholar]
Azari A, Rezaei Kalantary R, Keramati A, Dehghan S, Kakavandi B, Bahramifar H et al . Extraction and optimization of chitosan from shrimp shell: preparation, characterization and application in fluoride removal (isotherm, kinetic and thermodynamic studies). Iran South Med J. 2016; 19 (4) :644-661 URL: http://ismj.bpums.ac.ir/article-1-821-en.html