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Removal of Benzoic Acid from Water by Reactive Extraction Using Hollow Fiber Membrane Contactor: Experiment and Modeling
A commercially available hydrophobic polypropylene based hollow fiber membrane contactor (HFMC: Liquicel® module) was used for the removal of dissolved benzoic acid (BA) from water. The module was operated in liquid–liquid extraction (LLE) mode using BA‐laden water as feed on the lumen side and trioctylamine (TOA) diluted in 1‐octanol as extractant on the shell side of the module. The aqueous and organic streams flowed counter‐currently within the HFMC module. Experiments were carried out under different operating conditions, that is, feed flow rates, extractant flow rates, and initial BA concentrations in the feed. The synthetic wastewater was prepared using BA at concentrations ranging from 150 to 2700 ppm in water, whereas the extractant solution consisted of 0.12 M TOA in 1‐octanol. BA reacted with TOA at the interface of the aqueous and membrane phases, forming a complex that was removed by the organic extractant flowing on the shell side of the module. In this study, up to 95% removal efficiency was obtained using the HFMC operated in the LLE mode. A mathematical model was developed that simulated transport of the bulk aqueous phase and within the pores of the membrane. The model simulation results were found to be in reasonable agreement with the experimental data.
Removal of Benzoic Acid from Water by Reactive Extraction Using Hollow Fiber Membrane Contactor: Experiment and Modeling
A commercially available hydrophobic polypropylene based hollow fiber membrane contactor (HFMC: Liquicel® module) was used for the removal of dissolved benzoic acid (BA) from water. The module was operated in liquid–liquid extraction (LLE) mode using BA‐laden water as feed on the lumen side and trioctylamine (TOA) diluted in 1‐octanol as extractant on the shell side of the module. The aqueous and organic streams flowed counter‐currently within the HFMC module. Experiments were carried out under different operating conditions, that is, feed flow rates, extractant flow rates, and initial BA concentrations in the feed. The synthetic wastewater was prepared using BA at concentrations ranging from 150 to 2700 ppm in water, whereas the extractant solution consisted of 0.12 M TOA in 1‐octanol. BA reacted with TOA at the interface of the aqueous and membrane phases, forming a complex that was removed by the organic extractant flowing on the shell side of the module. In this study, up to 95% removal efficiency was obtained using the HFMC operated in the LLE mode. A mathematical model was developed that simulated transport of the bulk aqueous phase and within the pores of the membrane. The model simulation results were found to be in reasonable agreement with the experimental data.
Removal of Benzoic Acid from Water by Reactive Extraction Using Hollow Fiber Membrane Contactor: Experiment and Modeling
Agrahari, Gunjan Kumar (author) / Verma, Nishith (author) / Bhattacharya, Prashant K. (author)
CLEAN – Soil, Air, Water ; 42 ; 901-908
2014-07-01
8 pages
Article (Journal)
Electronic Resource
English
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