Abstract
AbstractCoke wastewater is one of the most problematic industrial wastewaters, due to its large volume and complex pollutant load. In this study, ion exchange technology was investigated with the objective of reducing the fluoride content of the effluent from a coke wastewater treatment plant (26.7 mg F-/L). Two Al-doped exchange resins with chelating aminomethyl-phosphonic acid and iminodiacetic groups were assessed: Al-doped TP260 and TP207 resins, respectively. The effect of resin dosage, varying from 5 to 25 g/L, was evaluated. F- removal was within the range 57.8–89.3% and 72.0–92.1% for Al-doped TP260 and TP207, respectively. A kinetic study based on a generalized integrated Langmuir kinetic equation fitted the experimental data (R2 > 0.98). The parameters of the said kinetics met the optimal conditions for the ion exchange process, which seemed to be more favorable with Al-doped TP260 resin than with Al-doped TP207 resin, using the same resin dosage. Furthermore, the experimental data were well described (R2 > 0.98) by Langmuir and Freundlich isotherm models, in agreement with the findings of the kinetic study: the maximum sorption capacity was obtained for the Al-doped TP260 resin.
Publisher
Springer Science and Business Media LLC
Subject
Health, Toxicology and Mutagenesis,Pollution,Environmental Chemistry,General Medicine
Reference42 articles.
1. APHA (2005) Standard Methods for the Examination of Water and Wastewater, 21st ed. American Public Health Association, American Water Works Association, Water Environment Federation, Washington, USA
2. Berber-Mendoza MS, Leyva-Ramos R, Alonso-Davila P, Fuentes-Rubio L, Guerrero-Coronado RM (2006) Comparison of isotherms for the ion exchange of Pb(II) from aqueous solution onto homoionic clinoptilolite. J Colloid Interface Sci 301:40–45. https://doi.org/10.1016/j.jcis.2006.04.037
3. Bhatnagar A, Kumar E, Sillanpää M (2011) Fluoride removal from water by adsorption – A review. Chem Eng J 171:811–840. https://doi.org/10.1016/j.cej.2011.05.028
4. Bhatt DB, Bhatt PR, Prasad HH, Popat KM, Anand PS (2004) Removal of fluoride ion from aqueous bodies by aluminium complexed amino phosphonic acid type resins. Indian J Chem Techn 11:299–303
5. Damtie MM, Hailemariam RH, Woo YC, Park KD, Choi JS (2019) Membrane-based technologies for zero liquid discharge and fluoride removal from industrial wastewater. Chemosphere 236:124288. https://doi.org/10.1016/j.chemosphere.2019.07.019
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