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Radiocatalytic degradation of dissolved organic compounds in wastewater

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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Wastewater containing a high concentration of organic substances was exposed to gamma radiolysis in the presence and absence of a catalyst (TiO2); radiolysis and radiocatalysis were performed by means of continuous and discontinuous irradiation. Dissolved organic carbon (DOC) was the parameter used to estimate the concentration of organic compounds without interference by the high mineral content. The data was well fitted to the pseudo-first-order kinetic model of Langmuir-Hinshelwood. From a [DOC]0 = 140 ± 7 mg/L, the higher DOC degradation (74%) and apparent rate constant (Kapp = 0.083 h−1) were found using discontinuous radiocatalysis. This process could be an alternative method of treatment of industrial or municipal wastewater.
Słowa kluczowe
Czasopismo
Rocznik
Strony
473--476
Opis fizyczny
Bibliogr. 14 poz., rys.
Twórcy
  • Departamento de Química, Instituto Nacional de Investigaciones Nucleares, Apartado Postal 18-1027 México, D.F. 11801 México
  • Departamento de Química, Instituto Nacional de Investigaciones Nucleares, Apartado Postal 18-1027 México, D.F. 11801 México
  • Departamento de Química, Instituto Nacional de Investigaciones Nucleares, Apartado Postal 18-1027 México, D.F. 11801 México
Bibliografia
  • 1. Ribeiro, A. R., Nunes, O. C., Pereira, M. F. R., & Silva, A. M. T. (2015). An overview on the advanced oxidation processes applied for the treatment of water pollutants defined in the recently launched Directive 2013/39/EU. Environ. Int., 75, 33–51. DOI: 10.1016/j.envint.2014.10.027.
  • 2. Luo, Y., Guo, W., Ngo, H. H., Nghiem, L. D., Hai, F. I., Zhang, J., Liang, S., & Wang, X. C. (2014). A review on the occurrence of micropollutants in the aquatic environment and their fate and removal during wastewater treatment. Sci. Total Environ., 473/474, 619–641. DOI: 10.1016/j.scitotenv.2013.12.065.
  • 3. Matilainen, A., & Sillanpää, M. (2010). Removal of natural organic matter from drinking water by advanced oxidation processes. Chemosphere, 80, 351–365. DOI: 10.1016/j.chemosphere.2010.04.067.
  • 4. Bao, H., Liu, Y., & Jia, H. (2002). A study of irradiation in the treatment of wastewater. Radiat. Phys. Chem., 63, 633–636. DOI: 10.1016/S0969-806X(01)00619-3.
  • 5. Kimura, A., Taguchi, M., Ohtani, Y., Shimada, Y., Hiratsuka, H., & Kojima, T. (2007). Treatment of wastewater having estrogen activity by ionizing radiation. Radiat. Phys. Chem., 76, 699–706. DOI: 10.1016/j.radphyschem.2006.04.005.
  • 6. Chmielewski, A. G., & Haji-Saeid, M. (2004). Radiation technologies: past, present and future. Radiat. Phys. Chem., 71, 17–21. DOI: 10.1016/j.radphyschem.2004.05.040.
  • 7. González-Juárez, J. C., Jiménez-Becerril, J., & CejudoÁlvarez, J. (2010). Degradation of 4-chlorophenol by gamma radiation of 137Cs and X-rays. J. Mex. Chem. Soc., 54, 157–159. Available from http://www.scielo. org.mx/scielo.php?script=sci_arttext&pid=S1870-249X2010000300005&lng=en.
  • 8. Velo-Gala, I., López-Peñalver, J. J., Sánchez-Polo, M., & Rivera-Utrilla, J. (2014). Role of activated carbon on micropollutans degradation by ionizing radiation. Carbon, 67, 288–299. DOI: 10.1016/j.carbon.2013.09.091.
  • 9. Abdel daiem, M. M., Rivera-Utrilla, J., Ocampo-Pérez, R., Sánchez-Polo, M., & López-Peñalver, J. J. (2013). Treatment of water contaminated with diphenolic acid by gamma radiation in the presence of different compounds. Chem. Eng. J., 219, 371–379. DOI: 10.1016/j.cej.2012.12.069.
  • 10. American Public Health Association. (2005). Standard methods for the examination of water and wastewater (21st ed.). Washington: APHA.
  • 11. Weishaar, J. L., Aiken, G. R., Bergamaschi, B. A., Fram, M. S., Fujii, R., & Mopper, K. (2003). Evaluation of specifi c ultraviolet absorbance as an indicator of the chemical composition and reactivity of dissolved organic carbon. Environ. Sci. Technol., 37, 4702–4708. DOI: 10.1021/es030360x.
  • 12. Potter, B. B., & Wimsatt, J. C. (2005, February). Determination of total organic carbon and specific UV absorbance at 254 nm in source water and drinking water. Revision 1.1. Method 415.3. Cincinnati: US EPA. (EPA/600/R-05/055).
  • 13. Jiménez-Reyes, M., & Solache-Ríos, M. (2012). The influence of pH on the stability constants of lanthanum and europium complexes with humic acids. J. Radioanal. Nucl. Chem., 293, 273–278. DOI:10.1007/s10967-012-1730-1.
  • 14. Secretaría del Medio Ambiente y Recursos Naturales, Comisión Nacional del Agua Norma Oficial Mexicana. (2009, 18 August). NOM-014-CONAGUA-2003, Requisitos para la recarga artificial de acuíferos con agua residual tratada. Diario Oficial de la Federación. Received 2015, from http://dof.gob.mx/nota_detalle. php?codigo=5105753&fecha=18/08/2009
Uwagi
PL
Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-1485b668-91db-4e80-af33-6e1c72d5429c
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