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 JWARP  Vol.11 No.8 , August 2019
Removal of Herbicides from Water Using Heterogeneous Photocatalysis Case Study: MCPA Sodium Monohydrate
Abstract: In this study, the herbicide MCPA sodium salt monohydrate (sodium (4-chloro-2 methylphenoxy) acetate has been studied as are presentative compound used in the agricultural field. Accordingly, direct photolysis and photocatalytic experiments under artificial irradiation simulating solar light in laboratorial conditions were performed. Photocatalytic experiments were performed using TiO2 dispersed powder and as an immobilized thin layer on the surface of blue glasses. The obtained results of photolysis showed a poor efficacy toward degradation of MCPA sodium monohydrate, with half-life (t1/2) 6931.5 min. While, the addition of TiO2 dispersed powder to the photocatalytic process enhances the process dramatically with (t1/2) equal to 36.5 min; furthermore, complete mineralization had been reached after approximately 4 hours, whereas the addition of TiO2 through immobilized system led to enhance the degradation rate with 2236 min. as t1/2. In spite of this, using TiO2 supported on glass substrates with more improvements could be a promising alternative to conventional TiO2 suspension, and provides a clean treatment method.
Cite this paper: Khalaf, S. , Shoqeir, J. , Scrano, L. , Karaman, R. , Bufo, S. and Kurniawan, T. (2019) Removal of Herbicides from Water Using Heterogeneous Photocatalysis Case Study: MCPA Sodium Monohydrate. Journal of Water Resource and Protection, 11, 1024-1035. doi: 10.4236/jwarp.2019.118060.
References

[1]   Pena, A.L.S. and Silveria, I.J. (1997) Determination of Chlorophenoxy Herbicides in Waters by Capillary Gas Chromatography with Ion Trap Detection. Journal of Chromatography A, 758, 324-331.
https://doi.org/10.1016/S0021-9673(96)00732-7

[2]   Alromeed, A., Scrano, L., Bufo, S. and Undabeytia, T. (2015) Slow Release Formulations of the Herbicide MCPA by Using Clay-Protein. Pest Management Science, 71, 1303-1310.
https://doi.org/10.1002/ps.3929

[3]   Carabias-Martinez, R., Rodriguez-Gonzalo, E., Fernandez-Laespad, M.E., Calvo-Seronero, L. and Sanchez-San Roman, F.J. (2003) Evolution over Time of the Agricultural Pollution of Waters in an Area of Salamanca and Zamora (Spain). Water Research, 37, 928-938.
https://doi.org/10.1016/S0043-1354(02)00366-4

[4]   Guzzella, L., Pozzoni, F. and Giuliano, G. (2006) Herbicide Contamination of Surficial Groundwater in Northern Italy. Environmental Pollution, 142, 344-353.
https://doi.org/10.1016/j.envpol.2005.10.037

[5]   European Commission Directive EC 1107/2009 of 21 October 2009 Concerning the Placing of Plant Protection Products on the Market and Repealing Council Directives 79/117/EEC and 91/414/EEC.

[6]   Badawy, M.I., Ghaly, M.Y. and Gad-Allah, T.A. (2006) Advanced Oxidation Processes for the Removal of Organophosphorus Pesticides from Wastewater. Desalination, 194, 166-175.
https://doi.org/10.1016/j.desal.2005.09.027

[7]   Konstantinou, I.K. and Albanis, T.A. (2003) Photocatalytic Transformation of Pesticides in Aqueous Titanium Dioxide Suspensions Using Artificial and Solar Light: Intermediates and Degradation Pathways. Applied Catalysis B, 42, 319-335.
https://doi.org/10.1016/S0926-3373(02)00266-7

[8]   Litter, M.I. (2005) Introduction to Photochemical Advanced Oxidation Processes for Water Treatment, Vol. 2. Springer-Verlag, Berlin, 325-366.
https://doi.org/10.1007/b138188

[9]   Phanikrishna Sharma, M.V., Durga-Kumari, V. and Subrahmanyam, V.M. (2008) TiO2 Supported over SBA-15: An Efficient Photocatalyst for the Pesticide Degradation Using Solar Light. Chemosphere, 73, 1562-1569.
https://doi.org/10.1016/j.chemosphere.2008.07.081

[10]   Zhu, X., Yuan, C., Bao, Y., Yang, J. and Wu, Y. (2005) Photocatalytic Degradation of Pesticide Pyridaben on TiO2 Particles. International Nano Letters, 229, 95-105.
https://doi.org/10.1016/j.molcata.2004.11.010

[11]   Okamoto, K.I., Yamamoto, Y., Tanaka, H. and Tanaka, M. (1985) Heterogeneous Decomposition of Phenol over TiO2 Powder. Bulletin of the Chemical Society of Japan, 58, 2015-2022.
https://doi.org/10.1246/bcsj.58.2015

[12]   Wu, C. (2008) Effects of Operational Parameters on the Decolorization of C.I. Reactive Red 198 in UV/TiO2-Based System. Dyes and Pigments, 77, 31-38.
https://doi.org/10.1016/j.dyepig.2007.03.003

[13]   Gray, N. (1996) Pesticides and Organic Micropollutants. In: Drinking Water Quality, Wiley, Chichester, 132-148.

[14]   Topalov, A., Molnár-Gábor, D., Abramovic, B., Korom, S. and Pericin, D. (2003) Photocatalytic Removal of the Insecticide Fenitrothion from Water Sensitized with TiO2. Journal of Photochemistry and photobiology, 160, 195-201.
https://doi.org/10.1016/S1010-6030(03)00266-1

[15]   Scrano, L., Bufo, S.A., Perucci, P., Meallier, P. and Mansour, M. (1999) Photolysis and Hydrolysis of Rimsulfuron. Pesticide Science, 55, 955-961.
https://doi.org/10.1002/(SICI)1096-9063(199909)55:9<955::AID-PS29>3.0.CO;2-9

[16]   Scrano, L., Bufo, S.A., Emmelin, C. and Meallier, P. (2005) Abiotic Degradation of the Herbicide Rimsulfuron on Minerals and Soil. In: Lichtfouse, E., Schwarzbauer, J. and Robert, D., Eds., Environmental Chemistry: Green Chemistry and Pollutants in Ecosystems, Springer, Berlin, 505-515.
https://doi.org/10.1007/3-540-26531-7_46

[17]   Sheel, D.W., McCurdy, R.J. and Hurst, S.J. (1998) Method of Depositing Tinoxide and Titanium Oxide Coatings on Flat Glass and the Resulting Coated Glass. Patent Application WO 98/06675.

[18]   Topalov, A., Abramovic, B., Molnar-Gabor, D., Csanadi, J. and Arcson, O. (2001) Photocatalytic Oxidation of the Herbicide (4-Chloro-2-Methylphenoxy)acetic Acid (MCPA) over TiO2. Journal of Photochemistry and Photobiology A: Chemistry, 140, 249-253.
https://doi.org/10.1016/S1010-6030(01)00415-4

[19]   Mylonas, A., Roussis, V. and Papaconstatinou, E. (1996) Photocatalytic Degradation of Phenol and p-cresol by Polyoxotungstates, Mechanistic Implications. Polyhedron, 95, 3211-3217.
https://doi.org/10.1016/0277-5387(96)00034-4

[20]   Mylonas, A., Hiskia, A. and Papaconstantinou, E. (1996) Contribution to Water Purification Using Polyoxometalates Aromatic Derivatives, Chloroacetic Acids. Journal of Molecular Catalysis A: Chemical, 114, 191-200.
https://doi.org/10.1016/S1381-1169(96)00317-2

 
 
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