Removal of Arsenic (V) from Aqueous Solutions Using Chitosan–Red Scoria and Chitosan–Pumice Blends

Asere, Tsegaye Girma; Mincke, Stein; De Clercq, Jeriffa; Verbeken, Kim; Tessema, Dejene A.; Fufa, Fekadu; Stevens, Christian V.; Du Laing, Gijs

doi:10.3390/ijerph14080895

Submit to this Journal Review for this Journal Edit a Special Issue

Article Menu

...

Open AccessArticle

Removal of Arsenic (V) from Aqueous Solutions Using Chitosan–Red Scoria and Chitosan–Pumice Blends

^1,*,

²,

³,

⁴,

⁵,

⁶

and

Laboratory of Analytical Chemistry and Applied Ecochemistry, Ghent University, Coupure Links 653, 9000 Ghent, Belgium

Department of Sustainable Organic Chemistry and Technology, Ghent University, Coupure Links 653, 9000 Ghent, Belgium

Department of Chemical Engineering and Technical Chemistry, Ghent University, Valentin Vaerwyckweg 1, 9000 Ghent, Belgium

⁴

Department of Materials, Textiles and Chemical Engineering, Ghent University, Technologiepark 903, 9052 Zwijnaarde, Belgium

⁵

Department of Chemistry, Welkite University, Southern Nations, Nationalities and Peoples’ Region, P.O. Box 07, Welkite, Ethiopia

⁶

Department of Water Resources and Environmental Engineering, Jimma University, P.O. Box 378, Jimma Ethiopia

Author to whom correspondence should be addressed.

Academic Editors: Ravi Naidu, Mohammad Mahmudur Rahman and Ayanka Wijayawardena

Int. J. Environ. Res. Public Health 2017, 14(8), 895; https://doi.org/10.3390/ijerph14080895

Received: 30 June 2017 / Revised: 27 July 2017 / Accepted: 1 August 2017 / Published: 9 August 2017

(This article belongs to the Special Issue Arsenic Contamination, Bioavailability and Public Health)

View Full-Text Download PDF

Browse Figures

Citation Export

Abstract

In different regions across the globe, elevated arsenic contents in the groundwater constitute a major health problem. In this work, a biopolymer chitosan has been blended with volcanic rocks (red scoria and pumice) for arsenic (V) removal. The effect of three blending ratios of chitosan and volcanic rocks (1:2, 1:5 and 1:10) on arsenic removal has been studied. The optimal blending ratio was 1:5 (chitosan: volcanic rocks) with maximum adsorption capacity of 0.72 mg/g and 0.71 mg/g for chitosan: red scoria (Ch–Rs) and chitosan: pumice (Ch–Pu), respectively. The experimental adsorption data fitted well a Langmuir isotherm (R² > 0.99) and followed pseudo-second-order kinetics. The high stability of the materials and their high arsenic (V) removal efficiency (~93%) in a wide pH range (4 to 10) are useful for real field applications. Moreover, the blends could be regenerated using 0.05 M NaOH and used for several cycles without losing their original arsenic removal efficiency. The results of the study demonstrate that chitosan-volcanic rock blends should be further explored as a potential sustainable solution for removal of arsenic (V) from water. View Full-Text

Keywords: red scoria; pumice; chitosan; arsenic; adsorption

▼ Show Figures

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited

Share and Cite

MDPI and ACS Style

Asere, T.G.; Mincke, S.; De Clercq, J.; Verbeken, K.; Tessema, D.A.; Fufa, F.; Stevens, C.V.; Du Laing, G. Removal of Arsenic (V) from Aqueous Solutions Using Chitosan–Red Scoria and Chitosan–Pumice Blends. Int. J. Environ. Res. Public Health 2017, 14, 895. https://doi.org/10.3390/ijerph14080895

AMA Style

Asere TG, Mincke S, De Clercq J, Verbeken K, Tessema DA, Fufa F, Stevens CV, Du Laing G. Removal of Arsenic (V) from Aqueous Solutions Using Chitosan–Red Scoria and Chitosan–Pumice Blends. International Journal of Environmental Research and Public Health. 2017; 14(8):895. https://doi.org/10.3390/ijerph14080895

Chicago/Turabian Style

Asere, Tsegaye G., Stein Mincke, Jeriffa De Clercq, Kim Verbeken, Dejene A. Tessema, Fekadu Fufa, Christian V. Stevens, and Gijs Du Laing. 2017. "Removal of Arsenic (V) from Aqueous Solutions Using Chitosan–Red Scoria and Chitosan–Pumice Blends" International Journal of Environmental Research and Public Health 14, no. 8: 895. https://doi.org/10.3390/ijerph14080895

Find Other Styles

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Metrics

Abstract views Pdf views Html views

Article Menu

Removal of Arsenic (V) from Aqueous Solutions Using Chitosan–Red Scoria and Chitosan–Pumice Blends

Abstract

Share and Cite

Article Metrics

Article Access Statistics

Article Access Map by Country/Region

Further Information

Guidelines

MDPI Initiatives

Follow MDPI