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The Influence of the Coexisting Anions on the Adsorption of Perchlorate from Water by the Modified Orange Peels


Affiliations
1 College of Life Science, Shaoxing University, Shaoxing, 312000, China
2 Department of Pharmacology and Health, Shaoxing University, Yuanpei College, Shaoxing, 312000, China
 

Activated carbons obtained from agricultural by-products have the some advantage like efficiency and low cost, if they are compared with non-renewable coal-based granular activated carbons. The abundance and availability of agricultural by-products make them good sources of raw materials for activated carbon production. The modified orange peels were prepared from orange peels by the chemical activation. The effect of pH value and coexisting anions (NO3-, SO42- and PO43-) were discussed in detail. Furthermore, adsorption isotherm for adsorption of ClO4- ions on the modified orange peels was studied. The experimental results showed that the values of pH and coexisting anions have an important influence on the adsorption of ClO4- ions by the modified orange peels. The Freundlich adsorption isotherm model was suitable for the ClO4- ions in solution. The adsorption process of ClO4- ions in solution by the modified orange peels is not uniform.

Keywords

Adsorption, Coexisting Anions, Perchlorate, Modified Orange Peels.
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  • The Influence of the Coexisting Anions on the Adsorption of Perchlorate from Water by the Modified Orange Peels

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Authors

Muqing Qiu
College of Life Science, Shaoxing University, Shaoxing, 312000, China
Chunxia Hu
Department of Pharmacology and Health, Shaoxing University, Yuanpei College, Shaoxing, 312000, China
Anyu Mei
Department of Pharmacology and Health, Shaoxing University, Yuanpei College, Shaoxing, 312000, China
Xiaojie Lou
College of Life Science, Shaoxing University, Shaoxing, 312000, China

Abstract


Activated carbons obtained from agricultural by-products have the some advantage like efficiency and low cost, if they are compared with non-renewable coal-based granular activated carbons. The abundance and availability of agricultural by-products make them good sources of raw materials for activated carbon production. The modified orange peels were prepared from orange peels by the chemical activation. The effect of pH value and coexisting anions (NO3-, SO42- and PO43-) were discussed in detail. Furthermore, adsorption isotherm for adsorption of ClO4- ions on the modified orange peels was studied. The experimental results showed that the values of pH and coexisting anions have an important influence on the adsorption of ClO4- ions by the modified orange peels. The Freundlich adsorption isotherm model was suitable for the ClO4- ions in solution. The adsorption process of ClO4- ions in solution by the modified orange peels is not uniform.

Keywords


Adsorption, Coexisting Anions, Perchlorate, Modified Orange Peels.

References