<?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>0121-750X</journal-id>
<journal-title><![CDATA[Ingeniería]]></journal-title>
<abbrev-journal-title><![CDATA[ing.]]></abbrev-journal-title>
<issn>0121-750X</issn>
<publisher>
<publisher-name><![CDATA[Universidad Distrital Francisco José de Caldas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0121-750X2021000100005</article-id>
<article-id pub-id-type="doi">10.14483/23448393.15846</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Study of the Influence of Clays on the Transfer of Dissolved Oxygen in Water]]></article-title>
<article-title xml:lang="es"><![CDATA[Estudio de la influencia de arcillas en la transferencia de oxígeno disuelto en agua]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Blanco-Zuñiga]]></surname>
<given-names><![CDATA[Cesar Rene]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rojas-Arias]]></surname>
<given-names><![CDATA[Nicolas]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Peña-Pardo]]></surname>
<given-names><![CDATA[Ludy Yiseth]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mendoza-Oliveros]]></surname>
<given-names><![CDATA[Martín Emilio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez-Ovalle]]></surname>
<given-names><![CDATA[Segundo Agustín]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Pedagógica y Tecnológica de Colombia  ]]></institution>
<addr-line><![CDATA[Tunja Boyacá]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidade Federal de São Carlos Departamento de Materiais -DeMa ]]></institution>
<addr-line><![CDATA[São Paulo ]]></addr-line>
<country>Brazil</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Pedagógica y Tecnológica de Colombia  ]]></institution>
<addr-line><![CDATA[Tunja Boyacá]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Pedagógica y Tecnológica de Colombia  ]]></institution>
<addr-line><![CDATA[Tunja Boyacá]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Universidad Pedagógica y Tecnológica de Colombia  ]]></institution>
<addr-line><![CDATA[Tunja Boyacá]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2021</year>
</pub-date>
<volume>26</volume>
<numero>1</numero>
<fpage>5</fpage>
<lpage>14</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0121-750X2021000100005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0121-750X2021000100005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0121-750X2021000100005&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Context:  The lack of dissolved oxygen (DO) in water bodies has become a serious problem for several ecosystems due to drastic changes in their climatic, biological, and physical conditions. The presence of microorganisms, organic matter, and clays, which are carried by landslides and rainwater, affect the process of restoration and transfer of DO in water, thus making it necessary to study how these factors affect the process of DO transfer in water bodies.  Method:  This work is focused on studying the influence of clays during the DO transfer process in water bodies. To this effect, samples of clays from the region of Paipa, Boyacá, were added in 1, 3 and 5% by weight into the samples of clean water. The aeration process was performed using a constant flow diffusion system. The tests were carried out until the saturation of dissolved oxygen in each of the water samples was obtained.  Results:  The results show that the presence of clays during the transfer of DO have little influence on bodies of water. However, variations were observed in time intervals of &lt;5 min in which the increase in the percentage of clays favored the transfer of DO.  Conclusions:  With these results, it is concluded that the presence of clays can generate a beneficial effect during the transfer of DO in bodies of water with a high oxygen deficiency, whereas, for water samples with a relatively high percentage of DO, clays can hinder the DO restoration process.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Contexto:  La carencia de oxígeno disuelto (OD) en cuerpos de agua se ha convertido en un problema ambiental para varios ecosistemas debido a cambios drásticos en sus condiciones climáticas, bilógicas y físicas. La presencia de microorganismos, materia orgánica y arcillas, transportados por deslizamientos y aguas lluvias, afectan los procesos de restauración y transferencia de OD en el agua, lo que hace necesario estudiar cómo dichos factores afectan el proceso de transferencia de OD.  Método:  Este trabajo se centra en estudiar la influencia de las arcillas durante el proceso de transferencia de OD en cuerpos de agua. Para esto, se utilizaron muestras de arcillas de la región de Paipa-Boyacá, adicionadas en 1, 3 y 5% en peso a muestras de agua limpia. El proceso de aireación se llevó a cabo utilizando un sistema de difusión de flujo constante. Los ensayos se realizaron hasta obtener la saturación de oxígeno disuelto en cada una de las muestras de agua trabajadas.  Resultados:  Los resultados muestran que la presencia de arcillas durante la transferencia de OD tienen poca influencia en los cuerpos de agua. Sin embargo, se observaron variaciones en intervalos de tiempo &lt;5 min en los que el incremento del porcentaje de arcillas favorecía la transferencia de OD.  Conclusiones:  Con estos resultados se concluye que la presencia de arcillas puede generar un efecto benéfico durante la transferencia de OD en cuerpos de agua con una alta carencia de oxígeno, mientras que, para muestras de agua con un porcentaje relativamente alto de OD, las arcillas perjudican el proceso de restauración de OD.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Dissolved oxygen (DO)]]></kwd>
<kwd lng="en"><![CDATA[diffuse aeration systems]]></kwd>
<kwd lng="en"><![CDATA[clays]]></kwd>
<kwd lng="en"><![CDATA[anoxic water.]]></kwd>
<kwd lng="es"><![CDATA[Oxígeno disuelto (OD)]]></kwd>
<kwd lng="es"><![CDATA[sistemas de aireación difusa]]></kwd>
<kwd lng="es"><![CDATA[arcillas]]></kwd>
<kwd lng="es"><![CDATA[agua anóxica.]]></kwd>
</kwd-group>
</article-meta>
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