Application of Advanced Oxidation Processes to Mefenamic Acid Elimination
The elimimation of mefenamic acid has been carried
out by photolysis, ozonation, adsorption onto activated carbon (AC)
and combinations of the previous single systems (O3+AC and
O3+UV). The results obtained indicate that mefenamic acid is not
photo-reactive, showing a relatively low quantum yield of the order
of 6 x 10-4 mol Einstein-1. Application of ozone to mefenamic
aqueous solutions instantaneously eliminates the pharmaceutical,
achieving simultaneously a 40% of mineralization. Addition of AC to
the ozonation process does not enhance the process, moreover,
mineralization is completely inhibited if compared to results obtained
by single ozonation. The combination of ozone and UV radiation led
to the best results in terms of mineralization (60% after 120 min).
[1] I. G├╝ltekin, and N.H. Ince, "Synthetic endocrine disruptors in the
environment and water remediation by advanced oxidation processes,"
J. of Environ. Manag., 85, pp. 816-832, 2007.
[2] S. Esplugas, D.M. Bila, L.G.T. Krause, and M. Dezotti, "Ozonation and
advanced oxidation technologies to remove endocrine disrupting
chemicals (EDCs) and pharmaceuticals and personal care products
(PPCPs) in water effluents," J. Hazard. Mat., 149, pp. 631-642, 2007.
[3] F.J. Rivas, A. Encinas, B. Acedo, and F.J. Beltrán, "Mineralization of
bisphenol A by advanced oxidation processes," J. of Chem. Technol. and
Biotechnol., 84, pp. 589-594, 2009.
[4] K. Moribe, R. Kinoshita, K. Higashi, Y. Tozuka, and K. Yamamoto,
"Coloration phenomenon of mefenamic acid in mesoporous silica FSM-
16," Chem. and Pharmac. Bull., 58, pp. 214-218, 2010.
[5] F.J. Beltrán, P. Pocostales, P. Alvarez, and A. Oropesa, "Diclofenac
removal from water with ozone and activated carbon," J. Hazard. Mat.,
163, pp. 768-776, 2009.
[6] F.J. Rivas, O. Gimeno, T. Borralho, and M. Carbajo, "UV-C photolysis
of endocrine disruptors. The influence of inorganic peroxides," J.
Hazard. Mat., 174, pp. 393-397, 2010.
[7] I. Kim, N. Yamashita, and H. Tanaka, "Photodegradation of
pharmaceuticals and personal care products during UV and UV/H2O2
treatments," Chemosphere, 77, pp. 518-525, 2009.
[8] F.J. Rivas, F.J. Beltrán, and B. Acedo, "Chemical and photochemical
degradation of acenaphthylene. Intermediate identification," J. Hazard.
Mat., 75, pp. 89-98, 2000.
[9] S.J. Khan, and H.S. Weinberg, "Characterisation of carbonyl byproducts
of drinking water ozonation," Wat. Sci. & Technol., 7, pp. 95-100, 2007.
[10] F.J. Beltrán, I. Giráldez, and J.F. García-Araya, "Kinetics of activated
carbon promoted ozonation of polyphenol mixtures in water," Ind. Eng.
Chem. Res., 47, pp. 1058-1065, 2008.
[1] I. G├╝ltekin, and N.H. Ince, "Synthetic endocrine disruptors in the
environment and water remediation by advanced oxidation processes,"
J. of Environ. Manag., 85, pp. 816-832, 2007.
[2] S. Esplugas, D.M. Bila, L.G.T. Krause, and M. Dezotti, "Ozonation and
advanced oxidation technologies to remove endocrine disrupting
chemicals (EDCs) and pharmaceuticals and personal care products
(PPCPs) in water effluents," J. Hazard. Mat., 149, pp. 631-642, 2007.
[3] F.J. Rivas, A. Encinas, B. Acedo, and F.J. Beltrán, "Mineralization of
bisphenol A by advanced oxidation processes," J. of Chem. Technol. and
Biotechnol., 84, pp. 589-594, 2009.
[4] K. Moribe, R. Kinoshita, K. Higashi, Y. Tozuka, and K. Yamamoto,
"Coloration phenomenon of mefenamic acid in mesoporous silica FSM-
16," Chem. and Pharmac. Bull., 58, pp. 214-218, 2010.
[5] F.J. Beltrán, P. Pocostales, P. Alvarez, and A. Oropesa, "Diclofenac
removal from water with ozone and activated carbon," J. Hazard. Mat.,
163, pp. 768-776, 2009.
[6] F.J. Rivas, O. Gimeno, T. Borralho, and M. Carbajo, "UV-C photolysis
of endocrine disruptors. The influence of inorganic peroxides," J.
Hazard. Mat., 174, pp. 393-397, 2010.
[7] I. Kim, N. Yamashita, and H. Tanaka, "Photodegradation of
pharmaceuticals and personal care products during UV and UV/H2O2
treatments," Chemosphere, 77, pp. 518-525, 2009.
[8] F.J. Rivas, F.J. Beltrán, and B. Acedo, "Chemical and photochemical
degradation of acenaphthylene. Intermediate identification," J. Hazard.
Mat., 75, pp. 89-98, 2000.
[9] S.J. Khan, and H.S. Weinberg, "Characterisation of carbonyl byproducts
of drinking water ozonation," Wat. Sci. & Technol., 7, pp. 95-100, 2007.
[10] F.J. Beltrán, I. Giráldez, and J.F. García-Araya, "Kinetics of activated
carbon promoted ozonation of polyphenol mixtures in water," Ind. Eng.
Chem. Res., 47, pp. 1058-1065, 2008.
@article{"International Journal of Chemical, Materials and Biomolecular Sciences:57660", author = "Olga Gimeno and Javier Rivas and Angel Encinas and Fernando Beltran", title = "Application of Advanced Oxidation Processes to Mefenamic Acid Elimination", abstract = "The elimimation of mefenamic acid has been carried
out by photolysis, ozonation, adsorption onto activated carbon (AC)
and combinations of the previous single systems (O3+AC and
O3+UV). The results obtained indicate that mefenamic acid is not
photo-reactive, showing a relatively low quantum yield of the order
of 6 x 10-4 mol Einstein-1. Application of ozone to mefenamic
aqueous solutions instantaneously eliminates the pharmaceutical,
achieving simultaneously a 40% of mineralization. Addition of AC to
the ozonation process does not enhance the process, moreover,
mineralization is completely inhibited if compared to results obtained
by single ozonation. The combination of ozone and UV radiation led
to the best results in terms of mineralization (60% after 120 min).", keywords = "Photolysis, mefenamic acid, ozone, activated carbon.", volume = "4", number = "6", pages = "424-3", }