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Hu, Chunxia
- The Influence of the Coexisting Anions on the Adsorption of Perchlorate from Water by the Modified Orange Peels
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Authors
Affiliations
1 College of Life Science, Shaoxing University, Shaoxing, 312000, CN
2 Department of Pharmacology and Health, Shaoxing University, Yuanpei College, Shaoxing, 312000, CN
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.Full Text
References
- Anastopoulos, I. and Kyzas, G.Z. 2014. Agricultural peels for dye adsorption: A review of recent literature. J. Mol. Liq., 200: 381389.
- Bharathi, K.S. and Ramesh, S.T. 2013. Removal of dyes using agricultural waste as low-cost adsorbents: a review. Appl. Water Sci., 3: 773-790.
- Fernandez, M.E., Ledesma, B., Romn, S., Bonelli, P.R. and Cukierman, A.L. 2015. Development and characterization of activated hydrochars from orange peels as potential adsorbents from emerging organic contaminants. Bioresour. Technol., 183: 221-228.
- Fernandez, M.E., Nunell, G.V., Bonelli, P.R. and Cukierman, A.L. 2014. Activated carbon developed from orange peels: batch and dynamic competitive adsorption of basic dyes. Ind. Crops Prod., 62: 437-445.
- Freundlich, H.M.F. 1906. Uber die adsorption in losungen (adsorption in solution). Z. Phys. Chem., 57: 384-470.
- Hashemian, S., Salari, K. and Yazdi, Z.A. 2014. Preparation of activated carbon from agricultural wastes (almond shell and orange peel) for adsorption of 2-pic from aqueous solution. J. Ind. Eng. Chem., 20: 1892-1900.
- Khalfaoui, A., Bendjamaa, I., Bensid, T., Meniai, A.H. and Derbal, K. 2014. Effect of calcination on orange peels characteristics: application of an industrial dye adsorption. Chem. Eng. Trans., 2: 361-366.
- Khatod, I. 2013. Removal of methylene blue dye from aqueous solutions by neem leaf and orange peel powder. Int. J. Chem. Technol. Res., 5: 572-577.
- Köseoglu, E. and Akmil-Basar, C. 2015. Preparation, structural evaluation and adsorptive properties of activated carbon from agricultural waste biomass. Adv. Powder Technol., 26: 811-818.
- Langmuir, I. 1916. The constitution and fundamental properties of solids and liquids. J. Am. Chem. Soc., 38: 2221-2295.
- Luo, W.H., Sasaki, K. and Hirajima T. 2015. Surfactant-modified montmorillonite by benzylocatadecyl dimethyl ammonium chloride for removal of perchlorate. Colloids and Surfaces A: Physicochem. Eng. Aspects, 481: 616-625.
- Oliveira, I., Blöhse, D. and Ramke, H.G. 2013. Hydrothermal carbonization of agricultural residues. Bioresour. Technol. 142: 138-146.
- Sayed, S.A., Ahmed, L.B. and Khalil, T. 2012. Removal of Reactive Blue 19 dye from aqueous solution using natural and modified orange peel. Carbon Lett., 13: 212-220.
- Schiewer, S. and Iqbal, M. 2010. The role of pectin in Cd binding by orange peel biosorbents: a comparison of peels, depectinated peels and pectic acid. J. Hazard. Mater., 177: 899-907.
- Song ,W., Gao, B.Y., Xu, X., Zhang, T.G., Liu, C., Tan, X., Sun, S.L. and Yue, Q.Y. 2015. Treatment of dissolved perchlorate by adsorption-microbial reduction. Chem. Eng. J., 279: 522-529.
- Yagub, M.T., Sen, T.K., Afroze, S. and Ang, H.M. 2014. Dye and its removal from aqueous solution by adsorption: a review. Adv. Colloid Interf. Sci., 209: 172-184.
- Removal of High Concentration of Ammonia from Wastewater by the Ion Exchange Resin
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Authors
Affiliations
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
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.Full Text
References
- Bhatnagar, A. and Sillanpää, M. 2011. A review of emerging adsorbents for nitrate removal from water. Chem. Eng. J., 168: 493-504.
- Blaney, L.M., Cinar, S. and SenGupta, A.K. 2007. Hybrid anion exchanger for trace phosphate removal from water and wastewater. Water Res., 41: 1603-1613.
- Fang, Y.T., Zuo, S.Q., Liang, X.H., Cao, Y.F., Gao, X.N. and Zhang, Z.G. 2016. Preparation and performance of desiccant coating with modified ion exchange resin on finned tube heat exchanger.
- Appl. Therm. Eng., 93: 36-42.
- Freundlich, H.M.F. 1906. Over the adsorption in solution. J. Phys. Chem., 57: 385-470.
- Gendel, Y. and Lahav, O. 2013. A novel approach for ammonia removal from fresh-water recirculated aquaculture systems, comprising ion exchange and electrochemical regeneration. Aquacult.
- Eng., 52: 27-38.
- Lahav, O., Schwartz, Y., Nativ, P. and Gendel, Y. 2013. Sustainable removal of ammonia from anaerobic-lagoon swine waste effluents using an electrochemically regenerated ion exchange process.
- Chem. Eng. J., 218: 214-222.
- Langmuir, I. 1918. The adsorption of gases on plane surfaces of glass, mica and platinum. J. Am. Chem. Soc., 40: 1361-1403.
- Milmile, S.N., Pande, J.V., Karmakar, Bansiwal, S. A., Chakrabarti, T. and Biniwale, R.B. 2011. Equilibrium isotherm and kinetic modeling of the adsorption of nitrates by anion exchange Indion NSSR resin. Desalination, 276: 38-44.
- Nur, T., Johir, M., Loganathan, P., Vigneswaran, S. and Kandasamy, J. 2012. Effectiveness of purolite A500PS and A520E ion exchange resins on the removal of nitrate and phosphate from synthetic water. Desalin. Water Treat., 47: 50-58.
- Oladoja, N. and Helmreich, B. 2014. Batch defluoridation appraisal of aluminium oxide infused diatomaceous earth. Chem. Eng. J., 258: 51-61.
- Shafeeyan, M.S., Daud, W.M.A.W., Shamiri, A. and Aghamohammadi, N. 2015. Adsorption equilibrium of carbon dioxide on ammoniamodified activated carbon. Chem. Eng. Research Design., 104: 42-52.
- Ward, M.H., DeKok, T.M., Levallois, P., Brender, J., Gulis, G., Nolan, B.T. and VanDerslice, J. 2005. Workgroup report: Drinkingwater nitrate and health-recent findings and research needs. Environ. Health Perspect., 25: 1607-1614.
- Zhao, Y.L., Yang, W.J., Zhou, J.H., Wang, Z.H., Liu, J.Z. and Cen, K.F. 2015. Experimental study on ammonia adsorption by coal ashes. J. Fuel. Chem. Technol., 43: 266-272.
- Zhu, W.L., Cui, L.H., Ouyang, Y., Long, C.F. and Tang, X.D. 2011. Kinetic adsorption of ammonium nitrogen by substrate materials for constructed wetlands. Pedosphere, 21: 454-463.
- Equilibrium and Kinetic Studies on Removal of Cd2+ Ion in Aqueous Solution by the Multiple Modified Diatomite
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Authors
Affiliations
1 College of Life Science, Shaoxing University, Shaoxing, 312000, CN
2 Department of Pharmacy and Health, Shaoxing University Yuanpei College, Shaoxing, 312000, CN
1 College of Life Science, Shaoxing University, Shaoxing, 312000, CN
2 Department of Pharmacy and Health, Shaoxing University Yuanpei College, Shaoxing, 312000, CN
Source
Nature Environment and Pollution Technology, Vol 16, No 4 (2017), Pagination: 1249-1254Abstract
The problem of metal pollution was regarded by many researchers for a long time. The wastewater containing metal ions must be treated. A composite modification technology of acid activating, sodium hydroxide and baking was applied to improve the diatomite adsorption ability, and a modified diatomite was prepared. The adsorption experiment of the metal wastewater by the modified diatomite was carried out in detail. The modified diatomite owned the high adsorption capacity of the Cd2+ ion. The operating parameters, such as contact time, concentration of Cd2+ ion and reaction temperature, had an important effect on the removal of the Cd2+ ion in aqueous solution. The adsorption of Cd2+ ions onto the modified diatomite was 9.65 mg/g. The adsorption process fits well with the Langmuir isotherm model and the pseudo-second-order kinetics model and it implied that the adsorption was mainly a physical process. The adsorption process is chemisorption, which involves a sharing of electrons between the adsorbate and the surface of the adsorbent.Keywords
Cd2+, Multiple Modified Diatomite, Adsorption, Kinetic Studies.Full Text