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Title

pH Dependent Equilibrium Models for Biosorption of Pb(II) on Chemically Modified Brown Algae, Cystoseira indica

Year: 1390
COI: ICHEC07_403
Language: EnglishView: 390
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Authors

Mohammad Ramezani Moghaddam - School of Chemical Engineering, Fasculty of Engineering, University of Tehran, Iran
Shohreh Fatemi - School of Chemical Engineering, Fasculty of Engineering, University of Tehran, Iran
Alireza Keshtkar - Atomic Energy Organization of Iran, North Kargar Ave. Tehran, Iran

Abstract:

Biosorption of heavy metals could be an effective process to remove heavy metal ions from aqueous solutions. This process strongly depends on the pH of aqueous media. The previous studies on lead ion removal by Cystoseira indica algae have revealed that pH of 5.5 could be the optimal condition for the effective removal of Pb2+ from water. In this study, pretreated Cystoseira indica with CaCl2, was used as biosorbent for Pb2+ removal from aqueous solution. The equilibrium sorption experiments at two levels of pH (pH 3 and pH 5.5) were conducted for various Pb+2 concetration, at room temperature. Six isotherm models were examined to correlate the equilibrium biosorption experimental data, and four error functions (ERRSQ, HYBRD, MPSD and AARE) were used to verify the accuracy and precision of the results. It was concluded that pH dependent Reddlich-Peterson isotherm model would be the best model among selected isotherm equations in the range of studied pH.

Keywords:

Biosorption , Lead ions removal , Cystoseira indica , pH dependent isotherm models

Paper COI Code

This Paper COI Code is ICHEC07_403. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/341154/

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Ramezani Moghaddam, Mohammad and Fatemi, Shohreh and Keshtkar, Alireza,1390,pH Dependent Equilibrium Models for Biosorption of Pb(II) on Chemically Modified Brown Algae, Cystoseira indica,07th International Congress on Chemical Engineering,Kish Island,https://civilica.com/doc/341154

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Type of center: دانشگاه دولتی
Paper count: 79,229
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