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Ammonium removal from aqueous solutions by zeolite adsorption together with chemical precipitation.
Water Sci Technol. 2010; 61(8):1941-7.WS

Abstract

The aim of this study was to remove ammonium from aqueous solution and recycle ammonium. Ammonium removal from aqueous solution by natural and pretreated zeolites, breakthrough curve, chemical regeneration of pretreated zeolite, ammonium removal from regeneration solution by chemical precipitation and NH(4) (+) adsorption isotherms were investigated by conducting a series of batch and continuous experiments in this study. Morphologies and structures of zeolites were analyzed by Surface Area and Pore Size analysis, Scanning Electron Microscopy (SEM) and Fourier Transform Infrared (FTIR) spectroscopy. The NH(4) (+)-N removal efficiencies by natural and NaCl-treated zeolite were 30.73% and 85.55% respectively at an initial concentration of 100 mg/L. Breakthrough and exhaustion capacities for adsorption of ammonium ions were 3.36 and 4.26 mg /g (NH(4) (+)-N/zeolite), respectively. After chemical regeneration, NH(4) (+)-N removal efficiency by NaCl-treated zeolite only reduced 9.95% than previously. NH(4) (+)-N concentration of the regeneration solution was reduced from 460 to 74.55 mg/L by chemical precipitation. The Freundlich isotherm provided a slightly more consistent fit to the experimental data of ammonium adsorption on NaCl-treated zeolite than Langmuir. Based on the results, it was concluded that the objective of this study had been well achieved.

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Authors+Show Affiliations

Wen T
School of Chemical Engineering and Energy, Zheng zhou University, Science Road No.100, Zhengzhou 450001, Henan, China. zhengdawenting@126.com
Zhang X
No affiliation info available
Zhang HQ
No affiliation info available
Liu JD
No affiliation info available

MeSH

AdsorptionChemical PrecipitationQuaternary Ammonium CompoundsThermodynamicsWaste Disposal, FluidWater PollutionZeolites

Pub Type(s)

Evaluation Study
Journal Article

Language

eng

PubMed ID

20388990

Citation

Wen, T, et al. "Ammonium Removal From Aqueous Solutions By Zeolite Adsorption Together With Chemical Precipitation." Water Science and Technology : a Journal of the International Association On Water Pollution Research, vol. 61, no. 8, 2010, pp. 1941-7.
Wen T, Zhang X, Zhang HQ, et al. Ammonium removal from aqueous solutions by zeolite adsorption together with chemical precipitation. Water Sci Technol. 2010;61(8):1941-7.
Wen, T., Zhang, X., Zhang, H. Q., & Liu, J. D. (2010). Ammonium removal from aqueous solutions by zeolite adsorption together with chemical precipitation. Water Science and Technology : a Journal of the International Association On Water Pollution Research, 61(8), 1941-7. https://doi.org/10.2166/wst.2010.145
Wen T, et al. Ammonium Removal From Aqueous Solutions By Zeolite Adsorption Together With Chemical Precipitation. Water Sci Technol. 2010;61(8):1941-7. PubMed PMID: 20388990.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Ammonium removal from aqueous solutions by zeolite adsorption together with chemical precipitation. AU - Wen,T, AU - Zhang,X, AU - Zhang,H Q, AU - Liu,J D, PY - 2010/4/15/entrez PY - 2010/4/15/pubmed PY - 2010/6/9/medline SP - 1941 EP - 7 JF - Water science and technology : a journal of the International Association on Water Pollution Research JO - Water Sci Technol VL - 61 IS - 8 N2 - The aim of this study was to remove ammonium from aqueous solution and recycle ammonium. Ammonium removal from aqueous solution by natural and pretreated zeolites, breakthrough curve, chemical regeneration of pretreated zeolite, ammonium removal from regeneration solution by chemical precipitation and NH(4) (+) adsorption isotherms were investigated by conducting a series of batch and continuous experiments in this study. Morphologies and structures of zeolites were analyzed by Surface Area and Pore Size analysis, Scanning Electron Microscopy (SEM) and Fourier Transform Infrared (FTIR) spectroscopy. The NH(4) (+)-N removal efficiencies by natural and NaCl-treated zeolite were 30.73% and 85.55% respectively at an initial concentration of 100 mg/L. Breakthrough and exhaustion capacities for adsorption of ammonium ions were 3.36 and 4.26 mg /g (NH(4) (+)-N/zeolite), respectively. After chemical regeneration, NH(4) (+)-N removal efficiency by NaCl-treated zeolite only reduced 9.95% than previously. NH(4) (+)-N concentration of the regeneration solution was reduced from 460 to 74.55 mg/L by chemical precipitation. The Freundlich isotherm provided a slightly more consistent fit to the experimental data of ammonium adsorption on NaCl-treated zeolite than Langmuir. Based on the results, it was concluded that the objective of this study had been well achieved. SN - 0273-1223 UR - https://www.unboundmedicine.com/medline/citation/20388990/Ammonium_removal_from_aqueous_solutions_by_zeolite_adsorption_together_with_chemical_precipitation_ L2 - https://iwaponline.com/wst/article-lookup/doi/10.2166/wst.2010.145 DB - PRIME DP - Unbound Medicine ER -