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Hu, Chunxia
- The Influence of the Coexisting Anions on the Adsorption of Perchlorate from Water by the Modified Orange Peels
Authors
1 College of Life Science, Shaoxing University, Shaoxing, 312000, CN
2 Department of Pharmacology and Health, Shaoxing University, Yuanpei College, Shaoxing, 312000, CN
Source
Nature Environment and Pollution Technology, Vol 15, No 4 (2016), Pagination: 1359-1362Abstract
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
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- Removal of High Concentration of Ammonia from Wastewater by the Ion Exchange Resin
Authors
1 College of Life Science, Shaoxing University, Shaoxing, 312000, P.R., CN
2 Department of Pharmacology and Health, Shaoxing University Yuanpei College, Shaoxing, 312000, P.R., CN
Source
Nature Environment and Pollution Technology, Vol 16, No 1 (2017), Pagination: 261-264Abstract
Nitrogen (N) is an essential element for living organisms in aquatic ecosystem. However, excess nitrate in this ecosystem could degrade water quality due to eutrophication. Ammonia is usually found in aqueous environments. It affects fish and other aquatic life and recreational use of water. In this study, the acidic ion exchange resins were chosen as adsorbent to adsorb the high concentration of ammonia from wastewater. The experimental results showed that reaction of temperature, the amount of the ion exchange resins and reaction time had an important influence on the removal rate of high concentration of ammonia from wastewater. The experimental data correlated well with the Langmuir adsorption isotherm. It was also suggested that the adsorption process was homogeneous adsorption. The ammonia from aqueous solution adsorption on the acidic ion exchange resins was a monolayer adsorption.
Keywords
Ammonia, Acidic Ion Exchange Resin, Adsorption Isotherm.References
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- Equilibrium and Kinetic Studies on Removal of Cd2+ Ion in Aqueous Solution by the Multiple Modified Diatomite
Authors
1 College of Life Science, Shaoxing University, Shaoxing, 312000, CN
2 Department of Pharmacy and Health, Shaoxing University Yuanpei College, Shaoxing, 312000, CN