Narimanpour A, Ghaneian M, Ehrampoosh M. Evaluation of Usual and Acid-Modified Fig Leaves Powder Application as a Biosorbent for Removing Chromium (VI) from Aqueous Solutions. TB 2022; 21 (1) :86-97
URL:
http://tbj.ssu.ac.ir/article-1-2080-en.html
Islamic Azad University,Yazd, Iran. , atefeh.narimanpour@gmail.com
Full-Text [PDF 565 kb]
(359 Downloads)
|
Abstract (HTML) (839 Views)
Full-Text: (532 Views)
Evaluation of Usual and Acid-Modified Fig Leaves Powder Application as a Biosorbent for Removing Chromium (VI) from Aqueous Solutions
Atefeh Narimanpour(MS.c.)1, Mohammad Taghi Ghaneian(Ph.D.)2, Mohammad Hassan Ehrampoosh(Ph.D.)2
1.Corresponding Author: M.Sc. in Environmental Engineering, Islamic Azad University,Yazd, Iran.
Email:atefeh.narimanpour@gmail.com Tel:0989153671343
2.Professor, Department of Environmental Health Engineering, Public Health Faculty, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
3.Professor, Environmental Science and Technology Research Center, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
Abstract
Introduction: One of the worrying and increasing environmental problems is urban and industrial waste water pollution, such as chromium (Cr). Given the destructive effects of Cr and non-degradability, its removal is of great importance. Adsorption method by low-cost biosorbents has been a successful method in during the last decade. This study aims to examine the effect of usual and acid-modified fig leaves powder as a biosorbent for removing of Cr (VI) from a synthetic aqueous solution.
Methods: Laboratory tests were designed and implemented, including solution making of Cr (VI) and then in order to study the effect of different parameters, including solution pH, contact time, solution concentration, and adsorbent dosage, the secondary amount of chromium concentration was measured and compared by atomic absorption spectrometer.
Results: The results showed that for usual adsorbent, optimum parameters included pH 2, 200mg/l initial concentration, 40g adsorbent concentration, and 120min equilibrium time while for the modified adsorbent, optimum parameters were pH 3, 300mg/l initial concentration, 40g adsorbent concentration, and 120min equilibrium time. The maximum adsorption percentage of Cr (VI) in the first case was 54.33% and in the second case was 91.50%. In addition, by examining adsorption isotherms and kinetic models, it was found that Cr adsorption in both cases follows Langmuir isotherm (R2=0.942 for usual and R2=0.975 for modified adsorbent) and pseudo-second order kinetic model (R2=0.976 for usual and R2=0.982 for modified adsorbent).
Conclusion: More efficient removal of Cr using a modified adsorbent compared to usual adsorbent and previous studies indicates the suitability of modified fig leaves powder as an adsorbent of Cr (VI).
Keywords: Adsorption, Heavy Metals, Cr (VI)
References
1-Saumya SP, Manohar DM, Noeline BF, Girija N, Geetha P, Koshy M. Biosorption of Cr(VI) from aqueous solution by chemically modified potato starch: Equilibrium and kinetic studies. Ecotoxicology and Environmental Safety. 2013; 92: 199–20.
2-WHO. Guidelines for the Safe Use of Wastewaters, Excreta and Greywater. USA: World Health Organization.2006;100.
3-US-EPA. Final 2014 Effluent Guidelines Program Plans, USA: United States Environmental Protection Agency.2015.
4-Iran Environment Organization. Human Environment Standards, Sewages Standard. Tehran: Iran Environment Organization.2010.[Persian]
5-Dubey SP,Gopal K. Adsorption of chromium (VI) on low cost adsorbents derived from agricultural waste material: A comparative study. Journal of Hazardous Materials.2007;145:465–70.
6-Bailey S, Olin T, Bricka M, Adrian D. A review of potentially low-cost sorbents for heavy metals. Water Resource.1999; 33: 2469–79.
7-Gao H, Liu Y, Zeng G, et al. Characterization of Cr(VI) removal from aqueous solutions by a surplus agricultural waste-rice straw. Hazardous Material.2008;150:446–52.
8-Imran A, Mohd A, Tabrez A. Low cost adsorbents for the removal of organic pollutants from wastewater. Journal of Environmental Management.2012; 113:170-83.
9-WanNgah WS, Hanafiah M. Removal of heavy metal ions from wastewater by chemically modified plant wastes as adsorbents: a review. Bioresource Technology.2008; 99: 3935–48.
10-Babel S, Kurniawan T. Low-cost adsorbents for heavy metals uptake from contaminated water: a review. Hazardous Material.2003; 28: 219–43.
11-Maingi FM, Mbuvi HM, Nganga MM. Remediation of water contaminated with Cr6 and Cd2 using aluminophosphates derived from ashes of tea leaves and pumpkin seed. Chemistry and Material Research.2016; 8: 94-102.
12-Ankitha R, Prakruthi S, Sneha S, Tharannum S. Areca nut as a potential bio-adsorbent for remediation of chromium. International Journal of Science Engineering and Management.2016; 1: 7-14.
13-Demirbas A. Heavy metal adsorption onto agro-based waste materials: a review. Hazardous Material.2008;157:220–9.
14-Krishnani KK, Ayyappan S. Heavy metals remediation of water using plants and lingo cellulosic agrowastes. Reviews of Environmental Contamination and Toxicology.2006;188:59–84.
15-Bridgewater L. Standard Methods for the Examination of Water and Wastewater. 22nd Ed., Washington: American Public Health Association.2012;10175.
16-Lagergren S. About the Theory of So-Called Adsorption of Soluble Substance. Kungliga Svenska Vetenskapsak ademiens Handlingar.1898;24:1-39.
17-Ho YS, McKay G. Pseudo-second order model for sorption processes. Process Biochemistry. 1999; 34:451–65.
18-Park D, Lim SL, Yun YS, Park JM. Development of a new Cr (VI)-biosorbent from agricultural biowaste. Bioresource Technology.2008; 99: 8810–18.
19-Jobby R, Jha P, Kumar A, et al. Biosorption and biotransformation of hexavalent chromium [Cr (VI)]: A comprehensive review. Chemosphere.2018; 207: 255-66.
Type of Study:
case report |
Subject:
Special Received: 2016/04/30 | Accepted: 2016/05/30 | Published: 2022/05/31