The removal of Pb2+ in the aqueous solutions by adsorption onto insolubilized humic acid (IHA) is investigated. The equilibrium isotherms were determined at pH 3.5 under constant ionic strength and at different temperatures. At the same time, the paper has also analyzed the adsorption experimental data by using three different isotherm models: Langmuir, Frendlich and Linear isotherm. As the result, it has obtained the optimal correlation for Frendlich isotherm equations. In addition, the paper has calculated the thermodynamic quantities ΔH in accordance with the Clausius-Claperyon,s theory. It means that the type of adsorption of Pb2+ onto IHA is physisorption, rather than by chemical bonding. And finally, the adsorption equilibrium gained around 12 hours and a high and stable removal of heavy metals on insoluble humic acid has been obtained almost under the neutral conditions.
| Published in | International Journal of Environmental Protection and Policy (Volume 2, Issue 6) |
| DOI | 10.11648/j.ijepp.20140206.16 |
| Page(s) | 230-235 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2024. Published by Science Publishing Group |
Water Contamination, Insolubilized Humic Acid, Adsorption, Modification
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APA Style
Ming-guang Ma, Yun-xia Wei, Guo-hu Zhao, Fang Liu, Yan-Rong Zhu. (2014). Characterization and Adsorption Mechanism of Pb (II) Removal by Insolubilized Humic Acid in Polluted Water. International Journal of Environmental Protection and Policy, 2(6), 230-235. https://doi.org/10.11648/j.ijepp.20140206.16
ACS Style
Ming-guang Ma; Yun-xia Wei; Guo-hu Zhao; Fang Liu; Yan-Rong Zhu. Characterization and Adsorption Mechanism of Pb (II) Removal by Insolubilized Humic Acid in Polluted Water. Int. J. Environ. Prot. Policy 2014, 2(6), 230-235. doi: 10.11648/j.ijepp.20140206.16
AMA Style
Ming-guang Ma, Yun-xia Wei, Guo-hu Zhao, Fang Liu, Yan-Rong Zhu. Characterization and Adsorption Mechanism of Pb (II) Removal by Insolubilized Humic Acid in Polluted Water. Int J Environ Prot Policy. 2014;2(6):230-235. doi: 10.11648/j.ijepp.20140206.16
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Download@article{10.11648/j.ijepp.20140206.16,
author = {Ming-guang Ma and Yun-xia Wei and Guo-hu Zhao and Fang Liu and Yan-Rong Zhu},
title = {Characterization and Adsorption Mechanism of Pb (II) Removal by Insolubilized Humic Acid in Polluted Water},
journal = {International Journal of Environmental Protection and Policy},
volume = {2},
number = {6},
pages = {230-235},
doi = {10.11648/j.ijepp.20140206.16},
url = {https://doi.org/10.11648/j.ijepp.20140206.16},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijepp.20140206.16},
abstract = {The removal of Pb2+ in the aqueous solutions by adsorption onto insolubilized humic acid (IHA) is investigated. The equilibrium isotherms were determined at pH 3.5 under constant ionic strength and at different temperatures. At the same time, the paper has also analyzed the adsorption experimental data by using three different isotherm models: Langmuir, Frendlich and Linear isotherm. As the result, it has obtained the optimal correlation for Frendlich isotherm equations. In addition, the paper has calculated the thermodynamic quantities ΔH in accordance with the Clausius-Claperyon,s theory. It means that the type of adsorption of Pb2+ onto IHA is physisorption, rather than by chemical bonding. And finally, the adsorption equilibrium gained around 12 hours and a high and stable removal of heavy metals on insoluble humic acid has been obtained almost under the neutral conditions.},
year = {2014}
}
TY - JOUR T1 - Characterization and Adsorption Mechanism of Pb (II) Removal by Insolubilized Humic Acid in Polluted Water AU - Ming-guang Ma AU - Yun-xia Wei AU - Guo-hu Zhao AU - Fang Liu AU - Yan-Rong Zhu Y1 - 2014/12/27 PY - 2014 N1 - https://doi.org/10.11648/j.ijepp.20140206.16 DO - 10.11648/j.ijepp.20140206.16 T2 - International Journal of Environmental Protection and Policy JF - International Journal of Environmental Protection and Policy JO - International Journal of Environmental Protection and Policy SP - 230 EP - 235 PB - Science Publishing Group SN - 2330-7536 UR - https://doi.org/10.11648/j.ijepp.20140206.16 AB - The removal of Pb2+ in the aqueous solutions by adsorption onto insolubilized humic acid (IHA) is investigated. The equilibrium isotherms were determined at pH 3.5 under constant ionic strength and at different temperatures. At the same time, the paper has also analyzed the adsorption experimental data by using three different isotherm models: Langmuir, Frendlich and Linear isotherm. As the result, it has obtained the optimal correlation for Frendlich isotherm equations. In addition, the paper has calculated the thermodynamic quantities ΔH in accordance with the Clausius-Claperyon,s theory. It means that the type of adsorption of Pb2+ onto IHA is physisorption, rather than by chemical bonding. And finally, the adsorption equilibrium gained around 12 hours and a high and stable removal of heavy metals on insoluble humic acid has been obtained almost under the neutral conditions. VL - 2 IS - 6 ER -
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