Adsorption of Mercury(II) Ion in Aqueous Solution by Using Bentonite-Based Monolith

Abstract:

The removal of mercury from the waterbody remains a severe challenge in ensuring environmental safety due to its highly toxic and non-biodegradable properties. Adsorption is an evidently effective method for heavy metal removal in water. This research aims to study the mercury (II) ion adsorption behavior in aqueous solution onto extruded natural bentonite in monolithic structure, bentonite-based monolith (BBM) adsorbent. BBM was characterized by XRD, BET, and SEM, the results verify BBM could improve adsorption performance assumed on its structure. Adsorption efficiency, isotherm model, and adsorption kinetic were investigated. Experiments were performed in a lab-scale batch reactor with mercury solution concentration varied from 1 to 5 mg/L. The maximum adsorption efficiency discovered to be 63,9%. The experimental data fitted well to Langmuir isotherm (non-linear) and kinetic model pseudo first order (non-linear), revealing the maximum monolayer capacity (Q_o) of BBM to be 0,187 mg/g with Langmuir constants K_L and a_L are 0,215 L/g dan 1,151 L/mg respectively. These value confirms that BBM adsorbent encompasses tremendous potential for mercury (II) ion removal in a solution.

• Periodical: Key Engineering Materials (Volume 885)
• Pages: 77-84
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.885.77
• Online since: May 2021
• Authors: Darmadi Darmadi*, Mahidin Mahidin, Siti Syifa Azzahra, Munadiya Masrura
• Keywords: Adsorbent, Adsorption, Bentonite, Heavy Metals, Isotherm, Kinetic Adsorption, Mercury, Monolith, Wastewater Treatment

References

[1] Y.P. Teoh, M.A. Khan, T.S.Y. Choong, Kinetic and isotherm studies for lead adsorption drom aqueous phase on carbon coated monolith, Chemical Engineering Journal. 217 (2013) 248-255.

DOI: 10.1016/j.cej.2012.12.013

[2] F. Fu, Q. Wang, Removal of heavy metal ions from wastewaters: a review, J. Environ. Manage. 92 (2011) 07–18.

[3] A. Kausar, M. Iqbal, A.Javed, K.Aftab, Z.H. Nazli, H.N. Bhatti, S.Nouren, Dyes adsorption using clay and modified clay A review, Journal of Molecular Liquids 256 (2018) 395-407.

DOI: 10.1016/j.molliq.2018.02.034

[4] B. Crittenden, S. Perera, T. Mays, O. Camus, S. Tennison, Monolithic Adsorbents in Sustainable Development, World Congress of Chemical Engineering 7th (2005).

[5] F. Akhtar, L. Andersson, S. Ogunwumi, N. Hedin, L. Bergström, Structuring adsorbents and catalysts by processing of porous powders, J. of the European Ceramic Society. 34 (2014) 1643–1666.

DOI: 10.1016/j.jeurceramsoc.2014.01.008

[6] A. Benhouria, M.A. Islam, H. Zaghouane-Boudiaf, M. Boutahala, B.H. Hameed, Calcium alginate-bentonite-activated carbon composite beads as highly effective adsorbent for methylene blue, Chem. Eng. J. 270 (2015) 621–630.

DOI: 10.1016/j.cej.2015.02.030

[7] Y. Bentahar, C. Hurel, K. Draoui, S. Khairoun, N. Marmier, Adsorptive properties of Moroccan clays for the removal of arsenic(V) from aqueous solution, Appl. Clay Sci. 119 (2016) 385–392.

DOI: 10.1016/j.clay.2015.11.008

[8] M. Ahrouch, J.M. Gatica, K. Draoui, D. Bellido, H. Vidal, Lead removal from aqueous solution by means of integral natural clays honeycomb monolith, J. Hazard. Mater. 365 (2019) 519–530.

DOI: 10.1016/j.jhazmat.2018.11.037

[9] E. Wibowo, M. Rokhmat, Sutisna, R. Murniati, Khairurrijal, M. Abdullah, Identification of natural zeolite from Sukabumi, West Java, Indonesia: structure, chemical composition, morphology and molecular vibration, Materials Research Express, 4(6) (2017).

DOI: 10.1088/2053-1591/aa731d

[10] K. Silas, W. A. W. A. K. Ghani, T. S. Y. Choong, U. Rashid, Activated Carbon Monolith CO3O4 Based Catalyst: Synthesis, Characterization and Adsorption Studies, Environ. Tech. and Innovation. 12 (2018) 273-285.

[11] A.E. Pirbazari, E. Saberikhah, M. Badrouh, M.S. Emami, Alkali treated Foumanat tea waste as an efficient adsorbent for methylene blue adsorption from aqueous solution, Water Resources and Industry. 6 (2014) 64–80.

DOI: 10.1016/j.wri.2014.07.003

[12] N. Delgado, A. Capparelli, A. Navarro, D. Marino, Pharmaceutical emerging pollutants removal from water using powdered activated carbon: Study of kinetics and adsorption equilibrium, J. Environ. Manage. 236 (2019) 301–308.

DOI: 10.1016/j.jenvman.2019.01.116

[13] B.K. Martini, T.G. Daniel, M.Z. Corazza, A.E. Carvalho, Methyl orange and tartrazine yellow adsorption on activated carbon prepared from boiler residue: Kinetics, isotherms, thermodynamics studies and material characterization, J. of Environ. Chem. Eng. 6 (2018) 6669–6679.

DOI: 10.1016/j.jece.2018.10.013

[14] P. B. Vilela, C. A. Matias, A. Dalalibera, V. A. Becegato, A. T. Paulino, Polyacrylic acid-based and chitosan-based hydrogels for adsorption of cadmium: Equilibrium isotherm, kinetic and thermodynamic studies, J. of Environ. Chem. Eng. 7 (2019) 103327.

DOI: 10.1016/j.jece.2019.103327

[15] Y. Kong, L. Wang, Y. Ge, H. Su, Z. Li, Lignin xanthate resin–bentonite clay composite as a highly effective and low-cost adsorbent for the removal of doxycycline hydrochloride antibiotic and mercury ions in water, J. of Hazard. Mater. 368 (2019) 33–41.

DOI: 10.1016/j.jhazmat.2019.01.026

[16] R. R. Karri, J. N. Sahu, N.S. Jayakumar, Optimal isotherm parameters for phenol adsorption from aqeous solutions onto coconut shell based activated carbon: Error analysis of linear and non-linear methods, J. of the Taiwan Institute of Chem. Eng. 80 (2017) 427–487.

DOI: 10.1016/j.jtice.2017.08.004

[17] M. R. Malekbala, M. A. Khan, S. Hosseini, L. C. Abdullah, T. S. Y. Choong, Adsorption/desorption of cationic dye on surfactant modified mesoporous carbon coated monolith: Equilibrium, kinetic and thermodynamic studies, J. of Industrial and Eng. Chemistry 21 (2015) 309–377.

DOI: 10.1016/j.jiec.2014.02.047

[18] Darmadi, T.Y. Choong, T.G. Chuah, Y. Robiah, Y.H.T. Yap, Adsorption of Methylene Blue from Aqueous Soluyions on Carbon Coated Monolith, AJChE. 8 (2009) 27–38.

[19] S. Mallakpour, S. Rashimoghadam, Poly(vinyl alcohol)/Vitamin C-multi walled carbon nanotubes composites and their applications for removal of methylene blue: Advanced comparison between linear and nonlinear forms of adsorption isotherms and kinetics models, Polymer 160 (2019) 115–125.

DOI: 10.1016/j.polymer.2018.11.035

[20] X. Guo, X. J. Wang, A general kinetic model for adsorption: Theoretical analysis and modeling, J. of Molecular Liquids. 228 (2019) 111100.

DOI: 10.1016/j.molliq.2019.111100

[21] Y. S. Ho, Review of second-order models for adsorption systems, J. of Hazardous Materials B136 (2006) 681–689.