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Experimental determination of Cd2+ adsorption mechanism on low-cost biological waste.

Carbonate shells have an astonishing ability in the removal of Cd2+ in a short time period with emphasis on being a low cost adsorbent. In the present study, the sorption capacity of carbonate shells was studied for Cd2+ in batch experiments. The influence of different carbonate shell sizes and phys...

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Main Authors: Ismail, Farhah Amalya, Aris, Ahmad Zaharin
Format: Article
Language:English
English
Published: Springer Verlag 2013
Online Access:http://psasir.upm.edu.my/id/eprint/28909/1/Experimental%20determination%20of%20Cd2.pdf
http://psasir.upm.edu.my/id/eprint/28909/
http://link.springer.com/journal/11783/7/3/page/1
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spelling my.upm.eprints.289092015-09-21T08:06:17Z http://psasir.upm.edu.my/id/eprint/28909/ Experimental determination of Cd2+ adsorption mechanism on low-cost biological waste. Ismail, Farhah Amalya Aris, Ahmad Zaharin Carbonate shells have an astonishing ability in the removal of Cd2+ in a short time period with emphasis on being a low cost adsorbent. In the present study, the sorption capacity of carbonate shells was studied for Cd2+ in batch experiments. The influence of different carbonate shell sizes and physico-chemical factors were evaluated and the results were analyzed for its correlation matrices by using Predictive Analytics Software (PASW). The mineralogy state of aqueous solution regarding the saturation index was simulated using PHREEQC to identify the Cd2+ uptake mechanism. The Cd uptake rates were calculated as well as Ca2+, HCO 3 − concentration, pH, ambient humidity and temperature were measured. Cd2+ removal of 91.52% was achieved after 5 h adsorption. The adsorption efficiencies were significantly influenced by pH as they increased with the increase of pH from acidic solution (5.50±0.02) to slightly alkaline (7.60±0.05). In addition, the mineralogy state of aqueous solution calculated from PHREEQC confirmed that the increment of Ca2+ and HCO 3 − concentrations in solution was attributed to the dissolution of carbonate shells. Moreover, the ion exchange adsorption mechanism of Cd2+ toward Ca2+ was identified as the process involved in Cd2+ uptake. Springer Verlag 2013 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/28909/1/Experimental%20determination%20of%20Cd2.pdf Ismail, Farhah Amalya and Aris, Ahmad Zaharin (2013) Experimental determination of Cd2+ adsorption mechanism on low-cost biological waste. Frontiers of Environmental Science & Engineering, 7 (3). pp. 356-364. ISSN 2095-2201; ESSN: 2095-221X http://link.springer.com/journal/11783/7/3/page/1 10.1007/s11783-013-0488-1 English
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
English
description Carbonate shells have an astonishing ability in the removal of Cd2+ in a short time period with emphasis on being a low cost adsorbent. In the present study, the sorption capacity of carbonate shells was studied for Cd2+ in batch experiments. The influence of different carbonate shell sizes and physico-chemical factors were evaluated and the results were analyzed for its correlation matrices by using Predictive Analytics Software (PASW). The mineralogy state of aqueous solution regarding the saturation index was simulated using PHREEQC to identify the Cd2+ uptake mechanism. The Cd uptake rates were calculated as well as Ca2+, HCO 3 − concentration, pH, ambient humidity and temperature were measured. Cd2+ removal of 91.52% was achieved after 5 h adsorption. The adsorption efficiencies were significantly influenced by pH as they increased with the increase of pH from acidic solution (5.50±0.02) to slightly alkaline (7.60±0.05). In addition, the mineralogy state of aqueous solution calculated from PHREEQC confirmed that the increment of Ca2+ and HCO 3 − concentrations in solution was attributed to the dissolution of carbonate shells. Moreover, the ion exchange adsorption mechanism of Cd2+ toward Ca2+ was identified as the process involved in Cd2+ uptake.
format Article
author Ismail, Farhah Amalya
Aris, Ahmad Zaharin
spellingShingle Ismail, Farhah Amalya
Aris, Ahmad Zaharin
Experimental determination of Cd2+ adsorption mechanism on low-cost biological waste.
author_facet Ismail, Farhah Amalya
Aris, Ahmad Zaharin
author_sort Ismail, Farhah Amalya
title Experimental determination of Cd2+ adsorption mechanism on low-cost biological waste.
title_short Experimental determination of Cd2+ adsorption mechanism on low-cost biological waste.
title_full Experimental determination of Cd2+ adsorption mechanism on low-cost biological waste.
title_fullStr Experimental determination of Cd2+ adsorption mechanism on low-cost biological waste.
title_full_unstemmed Experimental determination of Cd2+ adsorption mechanism on low-cost biological waste.
title_sort experimental determination of cd2+ adsorption mechanism on low-cost biological waste.
publisher Springer Verlag
publishDate 2013
url http://psasir.upm.edu.my/id/eprint/28909/1/Experimental%20determination%20of%20Cd2.pdf
http://psasir.upm.edu.my/id/eprint/28909/
http://link.springer.com/journal/11783/7/3/page/1
_version_ 1643829605005524992
score 13.211869

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