Next Article in Journal
Effects of Short Forest Bathing Program on Autonomic Nervous System Activity and Mood States in Middle-Aged and Elderly Individuals
Next Article in Special Issue
Arsenic Removal from Groundwater by Solar Driven Inline-Electrolytic Induced Co-Precipitation and Filtration—A Long Term Field Test Conducted in West Bengal
Previous Article in Journal
Adversity in University: Cyberbullying and Its Impacts on Students, Faculty and Administrators
Previous Article in Special Issue
As(V) Sorption/Desorption on Different Waste Materials and Soil Samples
Article Menu
Issue 8 (August) cover image

Export Article

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

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

1
Laboratory of Analytical Chemistry and Applied Ecochemistry, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
2
Department of Sustainable Organic Chemistry and Technology, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
3
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
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 [3735 KB, uploaded 9 August 2017]   |  

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 red scoria; pumice; chitosan; arsenic; adsorption
Figures

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. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

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.

Show more citation formats Show less citations formats

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

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Int. J. Environ. Res. Public Health EISSN 1660-4601 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top