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Inhibitory effect on the uptake and diffusion of Cd(2+) onto soybean hull sorbent in Cd-Pb binary sorption systems.
J Environ Manage. 2015 May 01; 154:22-32.JE

Abstract

The uptake of Cd(2+) and Pb(2+) ions by a soybean hull (SH) biosorbent in single and binary systems has been investigated. Sorption tests regarding SH in natura and chemically treated were carried out testing a suitable value range of solution pH, sorption temperature and shaking velocity. Sorption capacity is improved at pH 4, 30 °C temperature and 100 rpm. When a strong base is applied, a related-to-untreated SH increasing of 20% in the sorption capacity of Pb(2+) ions was observed, but with poor results for Cd(2+) uptake. Additionally, a relatively strong decreasing in both sorption capacities of Pb(2+) and Cd(2+) ions was evidenced for all acidic treatments. Regarding untreated SH, kinetic sorption data of both metals were well-interpreted by a pseudo second-order model and a rate-limiting step on the basis of an intra-particle diffusion model was suggested to occur. An inhibitory effect of Pb(2+) diffusion over Cd(2+) one was observed, limiting to reach the obtained maximum sorption capacity in single system. Maximum adsorption capacities of 0.49 and 0.67mequivg(-1) for Cd(2+) and Pb(2+), respectively, were predicted by the Langmuir isotherm model that reproduced well the equilibrium sorption data for single systems. The inhibitory effect of one metal over the other one was verified in equilibrium sorption data for binary systems interpreted on the basis of a modified extended Langmuir isotherm model, predicting changes in metal affinity onto the SH surface. Finally, SH is an alternative biosorbent with a great potential for the wastewater treatment containing cadmium and lead ions.

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Authors+Show Affiliations

Módenes AN
Department of Chemical Engineering - Postgraduate Program, West Parana State University - UNIOESTE, Campus of Toledo, rua da Faculdade 645, Jd. Santa Maria, 85903-000 Toledo, PR, Brazil. Electronic address: anmodenes@yahoo.com.br.
Espinoza-Quiñones FR
Department of Chemical Engineering - Postgraduate Program, West Parana State University - UNIOESTE, Campus of Toledo, rua da Faculdade 645, Jd. Santa Maria, 85903-000 Toledo, PR, Brazil.
Colombo A
Department of Chemical Engineering - Postgraduate Program, West Parana State University - UNIOESTE, Campus of Toledo, rua da Faculdade 645, Jd. Santa Maria, 85903-000 Toledo, PR, Brazil.
Geraldi CL
Department of Chemical Engineering - Postgraduate Program, West Parana State University - UNIOESTE, Campus of Toledo, rua da Faculdade 645, Jd. Santa Maria, 85903-000 Toledo, PR, Brazil.
Trigueros DE
Department of Chemical Engineering - Postgraduate Program, West Parana State University - UNIOESTE, Campus of Toledo, rua da Faculdade 645, Jd. Santa Maria, 85903-000 Toledo, PR, Brazil.

MeSH

AdsorptionBiodegradation, EnvironmentalCadmiumDiffusionElectrolytesKineticsLeadSoybeansSpectroscopy, Fourier Transform InfraredTemperature

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

25704746

Citation

Módenes, Aparecido N., et al. "Inhibitory Effect On the Uptake and Diffusion of Cd(2+) Onto Soybean Hull Sorbent in Cd-Pb Binary Sorption Systems." Journal of Environmental Management, vol. 154, 2015, pp. 22-32.
Módenes AN, Espinoza-Quiñones FR, Colombo A, et al. Inhibitory effect on the uptake and diffusion of Cd(2+) onto soybean hull sorbent in Cd-Pb binary sorption systems. J Environ Manage. 2015;154:22-32.
Módenes, A. N., Espinoza-Quiñones, F. R., Colombo, A., Geraldi, C. L., & Trigueros, D. E. (2015). Inhibitory effect on the uptake and diffusion of Cd(2+) onto soybean hull sorbent in Cd-Pb binary sorption systems. Journal of Environmental Management, 154, 22-32. https://doi.org/10.1016/j.jenvman.2015.02.022
Módenes AN, et al. Inhibitory Effect On the Uptake and Diffusion of Cd(2+) Onto Soybean Hull Sorbent in Cd-Pb Binary Sorption Systems. J Environ Manage. 2015 May 1;154:22-32. PubMed PMID: 25704746.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Inhibitory effect on the uptake and diffusion of Cd(2+) onto soybean hull sorbent in Cd-Pb binary sorption systems. AU - Módenes,Aparecido N, AU - Espinoza-Quiñones,Fernando R, AU - Colombo,Andréia, AU - Geraldi,Claudinéia L, AU - Trigueros,Daniela E G, Y1 - 2015/02/18/ PY - 2014/06/10/received PY - 2015/02/03/revised PY - 2015/02/12/accepted PY - 2015/2/24/entrez PY - 2015/2/24/pubmed PY - 2016/2/24/medline KW - Cadmium KW - Competitive sorption KW - Lead KW - Soybean hulls SP - 22 EP - 32 JF - Journal of environmental management JO - J Environ Manage VL - 154 N2 - The uptake of Cd(2+) and Pb(2+) ions by a soybean hull (SH) biosorbent in single and binary systems has been investigated. Sorption tests regarding SH in natura and chemically treated were carried out testing a suitable value range of solution pH, sorption temperature and shaking velocity. Sorption capacity is improved at pH 4, 30 °C temperature and 100 rpm. When a strong base is applied, a related-to-untreated SH increasing of 20% in the sorption capacity of Pb(2+) ions was observed, but with poor results for Cd(2+) uptake. Additionally, a relatively strong decreasing in both sorption capacities of Pb(2+) and Cd(2+) ions was evidenced for all acidic treatments. Regarding untreated SH, kinetic sorption data of both metals were well-interpreted by a pseudo second-order model and a rate-limiting step on the basis of an intra-particle diffusion model was suggested to occur. An inhibitory effect of Pb(2+) diffusion over Cd(2+) one was observed, limiting to reach the obtained maximum sorption capacity in single system. Maximum adsorption capacities of 0.49 and 0.67mequivg(-1) for Cd(2+) and Pb(2+), respectively, were predicted by the Langmuir isotherm model that reproduced well the equilibrium sorption data for single systems. The inhibitory effect of one metal over the other one was verified in equilibrium sorption data for binary systems interpreted on the basis of a modified extended Langmuir isotherm model, predicting changes in metal affinity onto the SH surface. Finally, SH is an alternative biosorbent with a great potential for the wastewater treatment containing cadmium and lead ions. SN - 1095-8630 UR - https://www.unboundmedicine.com/medline/citation/25704746/Inhibitory_effect_on_the_uptake_and_diffusion_of_Cd_2+__onto_soybean_hull_sorbent_in_Cd_Pb_binary_sorption_systems_ DB - PRIME DP - Unbound Medicine ER -