A Comparison Study of the Removal of Selected Pharmaceuticals in Waters by Chemical Oxidation Treatments
The degradation of selected pharmaceuticals in some
water matrices was studied by using several chemical treatments. The
pharmaceuticals selected were the beta-blocker metoprolol, the
nonsteroidal anti-inflammatory naproxen, the antibiotic amoxicillin,
and the analgesic phenacetin; and their degradations were conducted
by using UV radiation alone, ozone, Fenton-s reagent, Fenton-like
system, photo-Fenton system, and combinations of UV radiation and
ozone with H2O2, TiO2, Fe(II), and Fe(III). The water matrices, in
addition to ultra-pure water, were a reservoir water, a groundwater,
and two secondary effluents from two municipal WWTP. The results
reveal that the presence of any second oxidant enhanced the
oxidation rates, with the systems UV/TiO2 and O3/TiO2 providing the
highest degradation rates. It is also observed in most of the
investigated oxidation systems that the degradation rate followed the
sequence: amoxicillin > naproxen > metoprolol > phenacetin. Lower
rates were obtained with the pharmaceuticals dissolved in natural
waters and secondary effluents due to the organic matter present
which consume some amounts of the oxidant agents.
[1] T.A. Ternes, M. Meisenheimer, D. McDowell, F. Sacher, H.J. Brauch,
B.H. Gulde, G. Preuss, U. Wilme, N.Z. Seibert, Removal of
pharmaceuticals during drinking water treatment, Environ. Sci. Technol.
36 (2002) 3855-3863.
[2] S. Canonica, L. Meunier, U. von Gunten, Phototransformation of
selected pharmaceuticals during UV treatment of drinking water, Water
Res. 42 (2008) 121-128.
[3] U. von Gunten, Ozonation of drinking water. Part I. Oxidation kinetics
and product formation, Water Res. 37 (2003) 1443-1467.
[4] L. M. Santos, A. N. Ara├║jo, A. Fachini, A. Pena, C. Delerue-Matos, M.
C. Montenegro, Ecotoxicological aspects related to the presence of
pharmaceuticals in the aquatic environment, J. Hazard Mat. 175 (2010)
45-95.
[5] I. Nicole, J. De Laat, M. Dore, J.P. Duguet, C. Bonnel, Use of UV
radiation in water treatment: measurement of photonic flux by hydrogen
peroxide actinometry, Water Res. 24 (1990) 157-168.
[6] L.S. Clesceri, A.E. Greenberg, R.R. Trussell, Standard Methods for the
Examination of Water and Wastewater, 17th ed., APHA, AWWA,
WPCF, Washington, DC, 1989.
[7] C. Walling, Fenton-s reagent revisited, Acc. Chem. Res. 8 (1975) 125-
131.
[8] J.J. Pignatello, E. Oliveros, A. MacKay, Advanced oxidation processes
for organic contaminant destruction based on the Fenton reaction and
related chemistry, Environ. Sci. Technol. 36 (2006) 1-84.
[9] U. Cernigoj, U. L. Stangar, J. Jirkovsky, Effect of dissolved ozone or
ferric ions on photodegradation of thiacloprid in presence of different
TiO2 catalysts, J. Hazard. Mat. 177 (2010) 399-406
[1] T.A. Ternes, M. Meisenheimer, D. McDowell, F. Sacher, H.J. Brauch,
B.H. Gulde, G. Preuss, U. Wilme, N.Z. Seibert, Removal of
pharmaceuticals during drinking water treatment, Environ. Sci. Technol.
36 (2002) 3855-3863.
[2] S. Canonica, L. Meunier, U. von Gunten, Phototransformation of
selected pharmaceuticals during UV treatment of drinking water, Water
Res. 42 (2008) 121-128.
[3] U. von Gunten, Ozonation of drinking water. Part I. Oxidation kinetics
and product formation, Water Res. 37 (2003) 1443-1467.
[4] L. M. Santos, A. N. Ara├║jo, A. Fachini, A. Pena, C. Delerue-Matos, M.
C. Montenegro, Ecotoxicological aspects related to the presence of
pharmaceuticals in the aquatic environment, J. Hazard Mat. 175 (2010)
45-95.
[5] I. Nicole, J. De Laat, M. Dore, J.P. Duguet, C. Bonnel, Use of UV
radiation in water treatment: measurement of photonic flux by hydrogen
peroxide actinometry, Water Res. 24 (1990) 157-168.
[6] L.S. Clesceri, A.E. Greenberg, R.R. Trussell, Standard Methods for the
Examination of Water and Wastewater, 17th ed., APHA, AWWA,
WPCF, Washington, DC, 1989.
[7] C. Walling, Fenton-s reagent revisited, Acc. Chem. Res. 8 (1975) 125-
131.
[8] J.J. Pignatello, E. Oliveros, A. MacKay, Advanced oxidation processes
for organic contaminant destruction based on the Fenton reaction and
related chemistry, Environ. Sci. Technol. 36 (2006) 1-84.
[9] U. Cernigoj, U. L. Stangar, J. Jirkovsky, Effect of dissolved ozone or
ferric ions on photodegradation of thiacloprid in presence of different
TiO2 catalysts, J. Hazard. Mat. 177 (2010) 399-406
@article{"International Journal of Chemical, Materials and Biomolecular Sciences:60044", author = "F. Javier Benitez and Juan Luis Acero and Francisco J. Real and Gloria Roldan and Francisco Casas", title = "A Comparison Study of the Removal of Selected Pharmaceuticals in Waters by Chemical Oxidation Treatments", abstract = "The degradation of selected pharmaceuticals in some
water matrices was studied by using several chemical treatments. The
pharmaceuticals selected were the beta-blocker metoprolol, the
nonsteroidal anti-inflammatory naproxen, the antibiotic amoxicillin,
and the analgesic phenacetin; and their degradations were conducted
by using UV radiation alone, ozone, Fenton-s reagent, Fenton-like
system, photo-Fenton system, and combinations of UV radiation and
ozone with H2O2, TiO2, Fe(II), and Fe(III). The water matrices, in
addition to ultra-pure water, were a reservoir water, a groundwater,
and two secondary effluents from two municipal WWTP. The results
reveal that the presence of any second oxidant enhanced the
oxidation rates, with the systems UV/TiO2 and O3/TiO2 providing the
highest degradation rates. It is also observed in most of the
investigated oxidation systems that the degradation rate followed the
sequence: amoxicillin > naproxen > metoprolol > phenacetin. Lower
rates were obtained with the pharmaceuticals dissolved in natural
waters and secondary effluents due to the organic matter present
which consume some amounts of the oxidant agents.", keywords = "Pharmaceuticals, UV radiation, ozone, advancedoxidation processes, water matrices, degradation rates", volume = "5", number = "6", pages = "501-4", }