Effect of adsorbents and chemical treatments on the removal of strontium from aqueous solutions

Journal of Hazardous Materials
A AhmadpourT Rohani Bastami

Abstract

In the present investigation, three different solid wastes namely almond green hull, eggplant hull, and moss were initially treated and used as adsorbents for the adsorption of strontium ion from aqueous solutions. Adsorbent types and chemical treatments are proved to have effective roles on the adsorption of Sr(II) ion. Among the three adsorbents, almond green hull demonstrated strong affinity toward strontium ion in different solutions. The effectiveness of this new adsorbent was studied in batch adsorption mode under a variety of experimental conditions such as: different chemical treatments, various amounts of adsorbent, and initial metal-ion concentration. The optimum doses of adsorbent for the maximum Sr(II) adsorption were found to be 0.2 and 0.3 g for 45 and 102 mg L(-1) solutions, respectively. High Sr(II) adsorption efficiencies were achieved only in the first 3 min of adsorbent's contact time. The kinetics of Sr(II) adsorption on almond green hull was also examined and it was observed that it follows the pseudo second-order behavior. Both Langmuir and Freundlich models well predicted the experimental adsorption isotherm data. The maximum adsorption capacity on almond green hull was found to be 116.3 mg g(-1). The pre...Continue Reading

References

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May 26, 2004·Journal of Colloid and Interface Science·Soo-Jin ParkSeung-Kon Ryu
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Oct 10, 2008·Journal of Hazardous Materials·Changlun ChenXiangke Wang
Jan 13, 2009·Journal of Hazardous Materials·A AhmadpourJ Amel Besharati
Feb 3, 2009·Journal of Hazardous Materials·M ZabihiA Haghighi Asl

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Citations

Jun 30, 2015·Environmental Microbiology·Qianwei LiGeoffrey Michael Gadd
Jun 7, 2015·Journal of Environmental Radioactivity· LalhmunsiamaSeung-Mok Lee
Feb 13, 2020·International Journal of Environmental Research and Public Health·Yungui LiYang Liao
Nov 2, 2019·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Yuezhou WeiEric Guibal
Jul 24, 2021·Environmental Science and Pollution Research International·Fatemeh AkbarBandariEsmaeil Fatehifar

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