Degradation Mechanism of Aqueous Sulfamerazine by AOPs of O3 and UV/TiO2


Article Preview

Advanced Oxidation Processes (AOPs) is a promising treatment technology for eliminating trace micropollutants, in the treatment of wastewaters containing sulfamerazine (one of pharmaceuticals) using O3 and UV/TiO2 process, respectively. The degradation was studied by monitoring the intermediates employing high performance liquid chromatography (HPLC) separation coupled with an atmospheric pressure ionization mass spectrometry (API-MS) system operated under selected ion monitoring (SIM). The results indicate that the original sulfamerazine almost was degraded within 90 min under the concentration of ozone 3 mg/L at different pH runs. The ozonation of sulfamerazine demonstrated the best degradation efficiency for runs at pH 8 than for runs at pH 6 and pH 11, respectively, under the concentration of ozone 1 or 3 mg/L. The original sulfamerazine was completely degraded within irradiation time of 5 hr at pH 6 runs in the concentration of O2-sparged 30 mg/L during the photocatalytic process. The rate constants are 0.086, 0.08, 0.04, and 0.027 hr-1 at the concentration of sulfamerazine 14.22, 21.33, 35.55, and 42.66 μM, respectively. Two intermediates were observed during the photocatalytic degradation of sulfamerazine.



Advanced Materials Research (Volumes 396-398)

Edited by:

Yanxuan Wen and Fuhou Lei




L. C. Chuang et al., "Degradation Mechanism of Aqueous Sulfamerazine by AOPs of O3 and UV/TiO2", Advanced Materials Research, Vols. 396-398, pp. 772-775, 2012

Online since:

November 2011




[1] Y. Zhang and S.R. Meshnick, Antimicrob. Agens Chemother. 35 (1991) 267-271.

[2] S. Perez, P. Cichhorn and D.S. Aga, Environ. Toxicol. Chem. 24 (2005) 1361-1367.

[3] D.W. Koplin, E.T. Furlong and M.T. Meyer, Environ. Sci. Technol. 36 (2002) 1202-1211.

[4] X.S. Miao, F. Bishay, M. Chen and C.D. Metcalfe, Environ. Sci. Technol. 38 (2004) 3533-3541.

[5] M.J. Benotti, B.D. Stanford, E.C. Wert and S.A. Snyder, Water Res. 43 (2009) 1513-1522.

[6] APHA: Standard Methods for the Examination of Water and Wastewater, 18th ed., APHA, AWWA and WPCF. Washington, DC (1992).

[7] M.M. Ayad, H.E. Abdellatef, M.M. EI-Henawee and H.M. EI-Sayed, Spectrochim. Acta Part A 66 (2007) 106-110.

[8] A. Fujishima, T.N. Rao and D.A. Tryk, J. Photochem. Photobiol. C 1 (2000) 1-21.

[9] D.F. Ollis, E. Pelizzetti and N. Serpone, Environ. Sci. Technol. 25 (1991) 1522-1529.

[10] S.L. Murov, I. Carmichael G.L. Huy, Handbook of photochemistry, Marcel Dekker, New York, (1993).

[11] N. Daneshvar, M. Rabbani, N. Modirshahla and M.A. Behnajady, J. Photochem. Photobiol. A 168 (2004) 39-45.

[12] S. Horikoshi and H. Hidaka, J. Photchem. Photobiol. A 141 (2001) 201-207.

Fetching data from Crossref.
This may take some time to load.