PMID: 11317891Apr 25, 2001Paper

Ultrasonic irradiation of carbofuran: decomposition kinetics and reactor characterization

Water Research
I Hua, U Pfalzer-Thompson

Abstract

The sonochemical decomposition of carbofuran (2,3-dihydro-2,2-dimethyl-7-benzofuranyl,C12H15NO3) in a parallel plate near-field acoustical processor (NAP) is reported. Ultrasonic irradiation was performed at 16 and 20 kHz, under a total applied power of 1800 W. Carbofuran decomposition was enhanced with increasing power densities (1.65 W mL-1-5.55 W mL-1), and with decreasing initial concentrations (25 microM vs. 130 microM). The nature of the dissolved gas in solution also influenced the observed decomposition rate. The hydrodynamic behavior of the NAP reactor was characterized by calculating the Reynolds numbers and by performing tracer studies with a conservative tracer, sodium chloride (NaCl). The calculated dispersion coefficients indicate an intermediate amount of dispersion during operation of the reactor.

References

Sep 1, 1963·Journal of Pharmaceutical Sciences·L W DITTERT, T HIGUCHI
Nov 1, 1995·Environmental Science & Technology·I HuaM R Hoffmann

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Citations

Mar 12, 2003·Journal of Hazardous Materials·Qiquan Wang, Ann T Lemley
Oct 6, 2009·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Ying-Shih MaJih-Gaw Lin
May 7, 2011·Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes·Neelancherry Remya, Jih-Gaw Lin
Nov 30, 2007·Water Environment Research : a Research Publication of the Water Environment Federation·Bo NingPaul D Lickiss
Mar 16, 2011·Toxicology and Industrial Health·Ying-Shih Ma
Apr 13, 2012·Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes·Li A LuJih G Lin
Mar 10, 2017·Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes·M A VishnuganthN Selvaraju
Oct 3, 2006·Journal of Hazardous Materials·Iordache IoanAelenei Neculai

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