Experimental Study of Removal Heavy Metal of Arsenic from Water Using Nano Absorber Iron Oxide/N- Isopropyl Acrylamide/Chitosan

Document Type : Research Paper

Authors

1 MSc Student, Dept. of Environmental Engineering, Bandar Abbas Islamic Azad University, Faculty of Engineering, Bandar Abbas, Iran

2 Assoc. Prof. Department of Environmental Engineering, Bandar Abbas Islamic Azad University, Bandar Abbas, Iran

Abstract

Heavy metals are among the environmental pollutants that human exposure to some of them through water and food can cause chronic and dangerous poisoning. The problem of poisoning drinking water to arsenic is a pervasive problem and has been seen in almost all countries, whether developed or developing, which endangered the lives of many people. In the present study, the removal of arsenic from water using iron / N-isopropyl acrylamide / chitosan nano-adsorbent was studied and evaluated. In this research, a magnetic nanoparticle was used to absorb arsenic, which is an innovative method. In order to increase the absorption capacity, we use polymer grafting operations on the surface of the nanoparticles, which will greatly increase the specific surface of the adsorbent. In fact, by placing polymers on the adsorbent, the combined desire increases. The results show that synthesized nano-adsorbants have the ability to absorb arsenic at different concentrations. But its concentration varies in different concentrations. Langmuir, Freundlich, Tamkin and Dobbin Radhushev isotherms were fitted with arsenic adsorption at 45 °C, pH = 7.5 at different concentrations. And the results show that a high (R = 0.995) R2 value for Langmuir model confirms that this model is suitable for fitting experimental data. The percentage of arsenic removal in optimal conditions at pH= 7.5, the amount of adsorbent 10 mg, contact time 60 min, temperature 45 °C and concentration of 10 μg/ml was 82.2%.

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References

Ahmad Panahi, H., Morshedian, J., Mehmandost, N., Moniri, E. & Galaev, I. Y. 2010. Grafting of poly[1-(N,N-bis-carboxymethyl)amino-3-allylglycerol-co-dimethylacrylamide] copolymer onto siliceous support for preconcentration and determination of lead (II) in human plasma and environmental samples. Journal of Chromatography A, 1217, 5165-5172.
Chih, Y.C., Tsu, H.C., Jong, T.K., Yu, F.C. & Ying, C.C. 2008. Characteristics of molybdate-impregnated chitosan beads (MICB) in terms of arsenic removal from water and the application of a MICB-packed column to remove arsenic from wastewater. Bioresource Technology, 12(6), 7487-7494.
Jafari-Mansoorian, H., Farzadkia, M., Ansari, M., Ahmadi, E., Majidi, Gh., Amraie, A. et al. 2016. Evaluating the activated carbon prepared from walnut in removal of arsenic from aqueous solution. Journal of Safety Promotion and Injury Prevention, 3(4), 287-294. (In Persian)
Kayal, S. & Ramanujan, R. V. 2010. Doxorubicin loaded PVA coated iron oxide nanoparticles for targeted drug delivery. Materials Science and Engineering, 30(3), 484-490.
Luo, X., Lei, X., Cai, N., Xie, X., Xue, Y. & Yu, F. 2016. Removal of heavy metal ions from water by magnetic cellulose-based beads with embedded chemically modified magnetite nanoparticles and activated carbon. ACS Sustainable Chemistry and Engineering, 4, 3960-3969.
 Lasheen M.R., Iman Y. El-Sherif, Shaimaa T.El-Wakeel, DinaY. Sabry & El-Shahat M.F. 2017. Heavy metals removal from aqueous solution using magnetite Dowex 50WX4 resin nanocomposite. Journal of Materials and Environmental Sciences, 8(2), 503-511.
 Li, P., Zhu, A. M., Liu, Q. L. & Zhang, Q. G. 2008. Fe3O4/poly(N-Isopropylacrylamide)/chitosan composite microspheres with multiresponsive properties. Industrial and Engineering Chemistry Research, 47, 7700-7706.
Osaka, T., Matsunaga, T., Nakanishi, T., Arakaki, A., Niwa, D. & Iida, H. 2006. Synthesis of magnetic nanoparticles and their application to bioassays. Analytical and Bioanalytical Chemistry, 384(3), 593-600.
Qiao, L. Z., Lin, Y.C., Chenc, X, & Nai, Y.G. 2017. A method for preparing ferric activated carbon composites adsorbents to remove arsenic from drinking water. Journal of Hazardous Materials, 148(4), 671-678.
Shokoohi, R., Ehsani, H.R. & Tarlaniazar, M. 2009. Removal of heavy metals lead and cadmium by calcareous granules from the blue coral. 12th National Conference on Environmental Health, Tehran, Shahid Beheshti University of Medical Sciences, Tehran, Iran. 34-48. (In Persian)
Scenihr. 2007. The existing and proposed definitions relating to products of nanotechnologies. Scientific Committee on Emerging and Newly Identified Health Risks, European Commission.
 Tanzeife, M. & Kianoush, K. 2016. The study of langmuir and freundlich isotherms in the adsorption of cadmium by polypyrrole modified with titanium dioxide nanoparticles. The 2nd International Conference on Recent Findings in Chemistry and Chemical Engineering, Tehran, Iran. (In Persain).
 Wan Ngah, W. S., Teong, L. C., Toh, R. H. & Hanafiah, M. A. K. M. 2012. Utilization of chitosan–zeolite composite in the removal of Cu(II) from aqueous solution: adsorption, desorption and fixed bed column studies. Chemical Engineering Journal, 209, 46-53.
Journal of Water and Wastewater; Ab va Fazilab ( in persian )
Volume 30, Issue 6 - Serial Number 124
November and December 2019
Pages 78-89

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