Preparation And Characterization Of Novel Iron (III) HydroxidePaper Mill Sludge Composite Adsorbent For Chromium Removal

Yıl 2019, Cilt: 23 Sayı: 6, 1019 - 1026, 01.12.2019

Ali Yaraş , Hasan Arslanoğlu

https://doi.org/10.16984/saufenbilder.469464

Öz

This work deals with
the removal of Cr (III) and Cr (VI) from synthetic solutions via a novel
composite adsorbent prepared by precipitating iron (III) hydroxide on paper
mill sludge (PMS). To obtain Fe(OH)₃ loaded PMS, -8+16 mesh fraction
of PMS was saponified with NaOH solution, then iron (III) chloride was
impregnated, hydrolyzed in NaOH solution and dried. The influences of pH, time,
initial concentration and temperature on removal of Cr (III) and Cr (VI) were
examined and it was determined that Cr (VI) removal occurs simultaneously with
a reduction reaction. Maximum removal yields for Cr (III) and Cr (VI) occurred
at approximately pH = 5 and the adsorption achieved equilibrium in 90 min. Cr
(VI) adsorption ratio decreases while Cr (III) removal percentage increases
with raising in temperature. Experimental results are consistent with Langmuir
isotherm. Adsorption capacities of Cr (III) and Cr (VI) were calculated as
8.49, 10.14, 12.62 mg/g and 7.64, 5.39 and 4.17 mg/g for 25, 40 and 55 °C,
respectively. Enthalpy changes for Cr (III) and Cr (VI) were calculated as
24.67 kJ/mol and -12.46 kJ/mol, respectively. These results demonstrated that
the adsorption phenomenon of Cr (III) and Cr (VI) are endothermic and
exothermic.

Anahtar Kelimeler

Cr (VI) reduction, iron (III) hydroxide

Kaynakça

• [1] U. Förstner and G. T. W. Wittmann, Metal pollution in the aquatic environment. Springer Science & Business Media, 2012.
• [2] M. Sittig, “Pollutant removal handbook,” 1973.
• [3] W. W. Eckenfelder, Industrial water pollution control. McGraw-Hill, 1989.
• [4] M. Erdem, H. S. Altundogan, A. Özer, and F. Tümen, “Cr (VI) reduction in aqueous solutions by using synthetic iron sulphide,” Environ. Technol., vol. 22, no. 10, pp. 1213–1222, 2001.
• [5] T. Aoki and M. Munemori, “Recovery of chromium (VI) from wastewaters with iron (III) hydroxide—I: adsorption mechanism of chromium (VI) on iron (III) hydroxide,” Water Res., vol. 16, no. 6, pp. 793–796, 1982.
• [6] V. M. Dronnet, M. A. V Axelos, C. Renard, and J.-F. Thibault, “Improvement of the binding capacity of metal cations by sugar-beet pulp. 1. Impact of cross-linking treatments on composition, hydration and binding properties,” Carbohydr. Polym., vol. 35, no. 1–2, pp. 29–37, 1998.
• [7] M. R. Unnithan and T. S. Anirudhan, “The kinetics and thermodynamics of sorption of chromium (VI) onto the iron (III) complex of a carboxylated polyacrylamide-grafted sawdust,” Ind. Eng. Chem. Res., vol. 40, no. 12, pp. 2693–2701, 2001.
• [8] G. Cimino, A. Passerini, and G. Toscano, “Removal of toxic cations and Cr (VI) from aqueous solution by hazelnut shell,” Water Res., vol. 34, no. 11, pp. 2955–2962, 2000.
• [9] S. Lagergren, “Zur theorie der sogenannten adsorption geloster stoffe,” K. Sven. vetenskapsakademiens. Handl., vol. 24, pp. 1–39, 1898.
• [10] G. Sposito, “Soil particle surface,” The Chemistry of Soils. Oxford University Press: New York, pp. 136–141, 1989.
• [11] S. Ghorbani-Khosrowshahi and M. A. Behnajady, “Chromium (VI) adsorption from aqueous solution by prepared biochar from Onopordom Heteracanthom,” Int. J. Environ. Sci. Technol., vol. 13, no. 7, pp. 1803–1814, 2016.
• [12] M. Mirabedini, M. Z. Kassaee, and S. Poorsadeghi, “Novel magnetic chitosan hydrogel film, cross-linked with glyoxal as an efficient adsorbent for removal of toxic Cr (VI) from water,” Arab. J. Sci. Eng., vol. 42, no. 1, pp. 115–124, 2017.
• [13] W. Wang et al., “Cr (VI) removal from aqueous solution with bamboo charcoal chemically modified by iron and cobalt with the assistance of microwave,” J. Environ. Sci., vol. 25, no. 9, pp. 1726–1735, 2013.
• [14] T. Altun and Y. Kar, “Removal of Cr (VI) from aqueous solution by pyrolytic charcoals,” New Carbon Mater., vol. 31, no. 5, pp. 501–509, 2016.
• [15] E. Rosales, J. Meijide, T. Tavares, M. Pazos, and M. A. Sanromán, “Grapefruit peelings as a promising biosorbent for the removal of leather dyes and hexavalent chromium,” Process Saf. Environ. Prot., vol. 101, pp. 61–71, 2016.
• [16] R. Kumar, M. Ehsan, and M. A. Barakat, “Synthesis and characterization of carbon/AlOOH composite for adsorption of chromium (VI) from synthetic wastewater,” J. Ind. Eng. Chem., vol. 20, no. 6, pp. 4202–4206, 2014.
• [17] M. Jain, V. K. Garg, and K. Kadirvelu, “Adsorption of hexavalent chromium from aqueous medium onto carbonaceous adsorbents prepared from waste biomass,” J. Environ. Manage., vol. 91, no. 4, pp. 949–957, 2010.
• [18] D. Song et al., “Adsorptive removal of toxic chromium from waste-Water using wheat straw and Eupatorium adenophorum,” PLoS One, vol. 11, no. 12, p. e0167037, 2016.
• [19] G. Huang, J. X. Shi, and T. A. G. Langrish, “Removal of Cr (VI) from aqueous solution using activated carbon modified with nitric acid,” Chem. Eng. J., vol. 152, no. 2–3, pp. 434–439, 2009.
• [20] S. Babel and T. A. Kurniawan, “Cr (VI) removal from synthetic wastewater using coconut shell charcoal and commercial activated carbon modified with oxidizing agents and/or chitosan,” Chemosphere, vol. 54, no. 7, pp. 951–967, 2004.
• [21] K. Mohanty, M. Jha, B. C. Meikap, and M. N. Biswas, “Removal of chromium (VI) from dilute aqueous solutions by activated carbon developed from Terminalia arjuna nuts activated with zinc chloride,” Chem. Eng. Sci., vol. 60, no. 11, pp. 3049–3059, 2005.
• [22] Z. A. Al-Othman, R. Ali, and M. Naushad, “Hexavalent chromium removal from aqueous medium by activated carbon prepared from peanut shell: adsorption kinetics, equilibrium and thermodynamic studies,” Chem. Eng. J., vol. 184, pp. 238–247, 2012.
• [23] G. J. Alaerts, V. Jitjaturunt, and P. Kelderman, “Use of coconut shell-based activated carbon for chromium (VI) removal,” Water Sci. Technol., vol. 21, no. 12, pp. 1701–1704, 1989.