<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>2224-5421</journal-id>
<journal-title><![CDATA[Revista Cubana de Química]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Cub Quim]]></abbrev-journal-title>
<issn>2224-5421</issn>
<publisher>
<publisher-name><![CDATA[Ediciones UO, Universidad de Oriente]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2224-54212022000100069</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Comportamiento de la remoción de colorantes y materia orgánica en un humedal subsuperficial. Efecto del suelo como sustrato]]></article-title>
<article-title xml:lang="en"><![CDATA[Dye and organic matter removal performance in a subsurface wetland. Effect of soil as substrate]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez-Villar]]></surname>
<given-names><![CDATA[Maira María]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Zorrilla-Velazco]]></surname>
<given-names><![CDATA[Margie]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pescoso-Torres]]></surname>
<given-names><![CDATA[Bárbaro Miguel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Roche]]></surname>
<given-names><![CDATA[Yaribey Mayusca]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Central &#8220;Marta Abreu&#8221; de Las Villas Centro de Estudio de Química Aplicada ]]></institution>
<addr-line><![CDATA[Villa Clara ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2022</year>
</pub-date>
<volume>34</volume>
<numero>1</numero>
<fpage>69</fpage>
<lpage>86</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2224-54212022000100069&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2224-54212022000100069&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2224-54212022000100069&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN En el presente trabajo se evaluó la cinética de remoción de dos colorantes y materia orgánica en un humedal subsuperficial experimental de 0,15 m2 de área superficial, sembrado con la planta Cyperus alternifolius y con suelo pardo con carbonato y graba como sustrato. El estudio cinético realizado mostró una disminución de los contaminantes en el efluente del humedal desde los primeros minutos de contacto, ajustándose la remoción de materia orgánica al modelo cinético de saturación o Monod. Se obtuvieron eficiencias de remoción de los contaminantes superiores al 70 %. Se evaluó además el efecto del sustrato en la remoción de los colorantes, obteniéndose los modelos cinéticos y termodinámicos. Se obtuvo un mejor ajuste al modelo cinético de pseudosegundo orden para ambos colorantes, observándose una capacidad máxima de adsorción (0,01-0,58 g/kg) inferior a otros adsorbentes evaluados. Se obtuvo un buen ajuste tanto al modelo de Freundlich como al de Lagmuir.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT 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.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[humedales subsuperficiales]]></kwd>
<kwd lng="es"><![CDATA[remoción de colorantes]]></kwd>
<kwd lng="es"><![CDATA[Cyperus alternifolius]]></kwd>
<kwd lng="en"><![CDATA[subsurface wetlands]]></kwd>
<kwd lng="en"><![CDATA[dyes removal]]></kwd>
<kwd lng="en"><![CDATA[Cyperus alternifolius]]></kwd>
</kwd-group>
</article-meta>
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