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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.
ISSN: 0074-0195
Source: Boletin - Instituto Espanol de Oceanografia [ISSN 0074-0195], v. 9, p. 171-183
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