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Title: | Effect of physicochemical parameters on the adsorption-desorption mechanism of organochlorine pesticides on particulate matter in seawater | Other Titles: | Efecto de parametros fisicoquimicos en el mecanismo de adsorcion de pesticidas organoclorados sobre material particulado en agua de mar | Authors: | Perez-Pena, J. Santana-Casiano, J. M. Gonzalez-Davila, M. |
UNESCO Clasification: | 251002 Oceanografía química | Issue Date: | 1993 | Publisher: | 0074-0195 | Journal: | Boletín - Instituto Español de Oceanografía | Abstract: | The kinetic of these processes is rapid, and equilibrium concentrations are achieved in just 3 to 5 hours. Endrin achieves equilibrium concentrations after 20 h in a process described by a kinetic model that distinguishes two components. The four pesticides show linear adsorption and desorption isotherms. The adsorption-desorption reaction is affected by particle concentration, temperature, pH and salinity, showing the existence of more than one simple mechanism. An increase in chitin concentration and in temperature, and a decrease in pH and in salinity resulted in both lower pesticide adsorption and a more reversible process. | URI: | http://hdl.handle.net/10553/49840 | ISSN: | 0074-0195 | Source: | Boletin - Instituto Espanol de Oceanografia [ISSN 0074-0195], v. 9, p. 171-183 |
Appears in Collections: | Artículos |
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