Abstract
Effect of air bubbles on the membrane filtration of a basic dye, rhodamine B (RB), using a hydrophilic PTFE membrane filter (pore size: 0.20 μm) was studied. The air bubbles were generated by vigorously mixing the aqueous solution containing 0.05% (v/v) of 1-butanol with a shaft generator of a homogenizer. RB being far smaller than the pore size of the membrane filter could not be rejected without air bubbles, but it was rejected by the membrane filter in the presence of air bubbles. The rejection ratio increased with increasing the rotation speed of the shaft generator because of the increase in the amount of air bubbles and therefore the increase in the surface area of air bubbles for the adsorption of RB. On the other hand, another basic dye, methylene blue (MB), was negligibly rejected in the same condition. Dynamic surface tension measurement of aqueous solutions containing different amounts of dye indicated that RB strongly adsorbed to the air–water interface, while MB hardly adsorbed. The results obtained in the present study strongly suggest the potential usefulness of air bubbles for the selective microfiltration of dissolved organic molecules or ions.
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References
A.W. Zularisam, A.F. Ismail, R. Salim, Behaviours of natural organic matter in membrane filtration for surface water treatment: a review. Desalination 194, 211–231 (2006). https://doi.org/10.1016/j.desal.2005.10.030
S. Hube, M. Eskafi, K.F. Hrafnkelsdóttir, B. Bjarnadóttir, M.Á. Bjarnadóttir, S. Axelsdóttir, B. Wu, Direct membrane filtration for wastewater treatment and resource recovery: a review. Sci. Total Environ. 710, 136375 (2020). https://doi.org/10.1016/j.scitotenv.2019.136375
W.J. Lau, A.F. Ismail, Polymeric nanofiltration membranes for textile dye wastewater treatment: preparation, performance evaluation, transport modelling, and fouling control: a review. Desalination 245, 321–348 (2009). https://doi.org/10.1016/j.desal.2007.12.058
A.W. Mohammad, Y.H. Teow, W.L. Ang, Y.T. Chung, D.L. Oatley-Radcliff, N. Hilal, Nanofiltration membranes review: recent advances and future prospects. Desalination 356, 226–254 (2015). https://doi.org/10.1016/j.desal.2014.10.043
W. Pronk, A. Ding, E. Morgenroth, N. Derlon, P. Desmond, M. Burkhardt, B. Wu, A.G. Fane, Gravity-driven membrane filtration for water and wastewater treatment: a review. Water Res. 149, 553–565 (2019). https://doi.org/10.1016/j.watres.2018.11.062
K. Kodama, M. Oiwa, T. Saitoh, Purification of rhodamine B by alcohol-modified air bubble flotation. Bull. Chem. Soc. Jpn. 94, 1210–1214 (2021). https://doi.org/10.1246/bcsj.20200395
J.-H. Huang, K.-L. Huang, S.-Q. Liu, A.-T. Wang, C. Yan, Adsorption of rhodamine B and methyl orange on a hypercrosslinked polymeric adsorbent in aqueous solution. Colloids Surf. A 330, 55–61 (2008). https://doi.org/10.1016/j.colsurfa.2008.07.050
C. Pelekani, V.L. Snoeyink, Competitive adsorption between atrazine and methylene blue on activated carbon: the importance of pore size distribution. Carbon 38, 1423–1436 (2000). https://doi.org/10.1016/S0008-6223(99)00261-4
Y.S. Cho, J.S. Laskowski, Effect of flotation frothers on bubble size and foam stability. Int. J. Miner. Process. 64, 69–80 (2002). https://doi.org/10.1016/S0301-7516(01)00064-3
Y.S. Moreno, G. Bournival, S. Ata, Classification of flotation frothers: a statistical approach. Chem. Eng. Sci. 248, 117252 (2022). https://doi.org/10.1016/j.ces.2021.117252
P. Joos, G. Serrien, Adsorption kinetics of lower alkanols at the air, water interface: effects of structure maker, and structure breakers. J. Colloid Inter. Sci. 127, 97–103 (1989). https://doi.org/10.1016/0021-9797(89)90010-6
L.F. Mottram, S. Forbes, B.D. Ackley, B.R. Peterson, Hydrophobic analogues of rhodamine B and rhodamine 101: potent fluorescent probes of mitochondria in living C. elegans. Beilstein J. Org. Chem. 8, 2156–2165 (2012). https://doi.org/10.3762/bjoc.8.243
J.S. da Silva, H.C. Junqueira, T.L. Ferreira, Effect of pH and dye concentration on the n-octanol/water distribution ratio of phenothiazine dyes: a microelectrode voltammetry study. Electrochim. Acta 144, 154–160 (2014). https://doi.org/10.1016/j.electacta.2014.08.094
W.R. Gillap, N.D. Weiner, M. Gibaldi, Ideal behavior of sodium alkyl sulfates in various interfaces. Thermodynamics of adsorption at the air-water interface. J. Phys. Chem. 72, 2218–2222 (1968). https://doi.org/10.1021/j100852a058
C.-H. Chang, E.I. Franses, Adsorption dynamics of surfactants at the air/water interface: a critical review of mathematical models, data, and mechanisms. Colloid Surf. A 100, 1–45 (1995). https://doi.org/10.1016/0927-7757(94)03061-4
A.J. Prosser, E.I. Franses, Adsorption and surface tension of ionic surfactants at the air–water interface: review and evaluation of equilibrium models. Colloid Surf. A 178, 1–40 (2001). https://doi.org/10.1016/S0927-7757(00)00706-8
A. Castro, K. Bhattacharyya, K.B. Eisenthal, Energetics of adsorption of neutral and charged molecules at the air/water interface by second harmonic generation: hydrophobic and solvation effects. J. Chem. Phys. 95, 1310–1315 (1991). https://doi.org/10.1063/1.461113
T. Gilányi, I. Varga, C. Stubenrauch, R. Mészáros, Adsorption of alkyl trimethylammonium bromides at the air/water interface. J. Colloid Interf. Sci. 317, 395–401 (2008)
P. Jungwirth, D.J. Tobias, Specific ion effects at the air/water interface. Chem. Rev. 106, 1259–1281 (2006). https://doi.org/10.1021/cr0403741
D. Horinek, A. Herz, L. Vrbka, F. Sedlmeier, S.I. Mamatkulov, R.R. Netz, Specific ion adsorption at the air/water interface: the role of hydrophobic solvation. Chem. Phys. Lett. 479, 173–183 (2009). https://doi.org/10.1016/j.cplett.2009.07.077
R.O. Dunn Jr., J.F. Scamehorn, S.D. Christian, Use of micellar-enhanced ultrafiltration to remove dissolved organics from aqueous streams. Sep. Sci. Technol. 20, 257–284 (1985). https://doi.org/10.1080/01496398508060679
M.K. Purkait, S. DasGupta, S. De, Removal of dye from wastewater using micellar-enhanced ultrafiltration and recovery of surfactant. Sep Purif Technol 37(1), 81–92 (2004). https://doi.org/10.1016/j.seppur.2003.08.005
M. Moreno, L.P. Mazur, S.E. Weschenfelder, R.J. Regis, R.A.F. de Souza, B.A. Marinho, A. da Silva, S.M.A.G.U. de Souzaa, A.A.U. de Souza, Water and wastewater treatment by micellar enhanced ultrafiltration: a critical review. J. Water Process Eng. 46, 1574 (2022). https://doi.org/10.1016/j.jwpe.2022.102574
Acknowledgements
This study was supported by a Grant-in-Aid for Challenging Research (Pioneering) (21K19319) and a Grant-in-Aid for Scientific Research (B) (22H02115).
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Kodama, K., Thao, N.T.T. & Saitoh, T. Effect of air bubbles on the membrane filtration of rhodamine B. ANAL. SCI. 39, 1601–1605 (2023). https://doi.org/10.1007/s44211-023-00366-w
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DOI: https://doi.org/10.1007/s44211-023-00366-w