<?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>0123-921X</journal-id>
<journal-title><![CDATA[Tecnura]]></journal-title>
<abbrev-journal-title><![CDATA[Tecnura]]></abbrev-journal-title>
<issn>0123-921X</issn>
<publisher>
<publisher-name><![CDATA[Universidad Distrital Francisco José de Caldas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0123-921X2021000200043</article-id>
<article-id pub-id-type="doi">10.14483/22487638.16273</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Impacto ambiental del vertimiento de aguas servidas en aglomerados urbanos ilegales del municipio de Villavicencio, Colombia]]></article-title>
<article-title xml:lang="en"><![CDATA[Environmental impact of sewage discharge into illegal urban agglomerates in Villavicencio, Colombia]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Moyano Salcedo]]></surname>
<given-names><![CDATA[Álvaro Javier]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cuadros Segura]]></surname>
<given-names><![CDATA[Fabián Dario]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pabón Laverde]]></surname>
<given-names><![CDATA[Adrián Mateo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Trujillo Arias]]></surname>
<given-names><![CDATA[Jassbleydi Valentina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Santo Tomás  ]]></institution>
<addr-line><![CDATA[Villavicencio ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Pontificia Universidad Católica de Valparaíso Instituto de Biología ]]></institution>
<addr-line><![CDATA[Valparaíso ]]></addr-line>
<country>Chile</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Santo Tomás  ]]></institution>
<addr-line><![CDATA[Villavicencio ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Santo Tomás  ]]></institution>
<addr-line><![CDATA[Villavicencio ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2021</year>
</pub-date>
<volume>25</volume>
<numero>68</numero>
<fpage>43</fpage>
<lpage>62</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0123-921X2021000200043&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0123-921X2021000200043&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0123-921X2021000200043&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Contexto:  La conformación de conglomerados habitacionales ilegales, en la mayoría de los casos, sin saneamiento básico adecuado, puede generar deterioro de los recursos naturales. El presente estudio evaluó el impacto ambiental asociado al vertimiento de aguas servidas urbanas (ASU) sobre suelos y cuerpos de agua, en un aglomerado urbano ilegal del municipio de Villavicencio.  Metodología: A partir de 15 puntos de muestreo se determinaron parámetros fisicoquímicos de agua: serie de sólidos, turbiedad, color, demanda química de oxígeno (DQO), pH, conductividad eléctrica (CE), oxígeno disuelto (OD); y de suelo: pH, CE, capacidad de intercambio catiónico (CIC) y concentración de C, N y elementos traza, para identificar impactos sobre los recursos en el área de estudio.  Resultados:  Las muestras de ASU presentaron valores elevados en parámetros como turbiedad (326 NTU), color (744 UPC) y DQO bruta (600 a 1500 mg l-1). En los análisis de cuerpos de agua aledaños al sector, la DQO varió entre 368 y 429 mg l-1. Asimismo, el OD osciló entre 5,7 y 7,1 mg l-1, valores que resultaron favorables para los cauces; sin embargo, fueron bajos para el ASU (0,9 mg l-1). Por su parte, se determinó una alteración significativa en propiedades fisicoquímicas del suelo como pH (5,8-8,2), CIC (8,2-16,78 mEq-g 100 g-1), CE (57,6-517,3 µS cm-1) y N (0,03-0,84 mg kg-1) asociadas principalmente a los vertimientos.  Conclusiones:  Fue posible identificar un efecto negativo en los recursos agua y suelo, generado por descargas descontroladas de ASU en el lugar, lo cual se encuentra relacionado una pérdida de servicios ambientales y baja calidad de vida.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Context:  The formation of illegal housing conglomerates, in most cases, without adequate basic sanitation, can lead to deterioration of natural resources. The aim of this study was to evaluate the environmental impact associated with the urban sewage discharge (USD) on ground and water bodies in an illegal urban agglomeration in the Villavicencio municipality.  Methodology: From 15 sampling points, physicochemical parameters of water were determined: solids series, turbidity, color, chemical oxygen demand (COD), pH, electrical conductivity (EC), dissolved oxygen (DO), and soil: pH, EC, cation exchange capacity (CEC) and C, N and trace elements concentration, to relate and identify the impacts on resources in the study area.  Results: The USD samples presented high values in parameters such as turbidity (326 NTU), color (744 UPC) and crude COD that ranged from 600 to 1500 mg L-1. In the water bodies surrounding the sector, the COD varied between 368 and 429 mg L-1. Likewise, DO ranged from 5,7 to 7,1 mg L-1, values that were favorable for the channels, however, they were low for the USD (0,9 mg L-1). On the other hand, a significant alteration was determined in soil physicochemical properties such as pH (5,8-8,2), CEC (8,2-16,8 mEq-g 100 g-1), EC (57,6- 517,3 µS cm-1) and N (0,03-0,84 mg Kg-1) mainly associated with discharges.  Conclusions: It was possible to identify a negative effect on water and soil resources, generated by uncontrolled discharges of USD in the place, which is related to a loss of environmental services and low life quality.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[agua servida urbana]]></kwd>
<kwd lng="es"><![CDATA[aglomerados urbanos ilegales]]></kwd>
<kwd lng="es"><![CDATA[calidad del agua]]></kwd>
<kwd lng="es"><![CDATA[calidad del suelo]]></kwd>
<kwd lng="es"><![CDATA[impacto ambiental.]]></kwd>
<kwd lng="en"><![CDATA[urban sewage illegal urban agglomerates]]></kwd>
<kwd lng="en"><![CDATA[water quality]]></kwd>
<kwd lng="en"><![CDATA[soil quality]]></kwd>
<kwd lng="en"><![CDATA[environmental impact.]]></kwd>
</kwd-group>
</article-meta>
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