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Copyright of Revista Sociedad Colombiana de Oftalmología is the property of Sociedad Colombiana de Oftalmologia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In the present research, the removal kinetics of two dyes and organic matter were evaluated in an experimental subsurface wetland of 0,15 m2 of surface area, planted with the Cyperus Alternifolius plant and with brown soil with carbonate and gravel as substrate. The kinetic study showed a decrease of pollutants in the wetland effluent from the first minutes of contact, adjusting the removal of organic matter to the saturation or Monod kinetic model. Pollutant removal efficiencies of more than 70 % were obtained. The effect of the substrate on the removal of the dyes was also evaluated, obtaining the kinetic and thermodynamic models. A better fit to the pseudo-second order kinetic model was obtained for both dyes, observing a maximum adsorption capacity (0,01-0,58 g/kg) lower than other adsorbents evaluated. A good fit to both the Freundlich and Lagmuir models was obtained. [ABSTRACT FROM AUTHOR]

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Copyright of CULCyT: Cultura Científica y Tecnológica is the property of Cultura Cientifica y Tecnologia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)