<?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>0122-5383</journal-id>
<journal-title><![CDATA[CT&F - Ciencia, Tecnología y Futuro]]></journal-title>
<abbrev-journal-title><![CDATA[C.T.F Cienc. Tecnol. Futuro]]></abbrev-journal-title>
<issn>0122-5383</issn>
<publisher>
<publisher-name><![CDATA[Instituto Colombiano del Petróleo (ICP) - ECOPETROL S.A.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0122-53832019000100093</article-id>
<article-id pub-id-type="doi">10.29047/01225383.155</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[USE OF ECUADORIAN NATURAL AND ACID-SURFACTANT MODIFIED ZEOLITES FOR REMEDIATION OF OIL- CONTAMINATED SOILS]]></article-title>
<article-title xml:lang="es"><![CDATA[USO DE ZEOLITA NATURAL ECUATORIANA Y MODIFICADA CON ACIDO-SURFACTANTE PARA LA REMEDIACION DE SUELOS CONTAMINADOS CON PETROLEO]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pinto-Santamaría]]></surname>
<given-names><![CDATA[Gladys-Cristina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ríos-Reyes]]></surname>
<given-names><![CDATA[Carlos-Alberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vargas-Fiallo]]></surname>
<given-names><![CDATA[Luz-Yolanda]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Industrial de Santander  ]]></institution>
<addr-line><![CDATA[Bucaramanga ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2019</year>
</pub-date>
<volume>9</volume>
<numero>1</numero>
<fpage>93</fpage>
<lpage>104</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0122-53832019000100093&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0122-53832019000100093&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0122-53832019000100093&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Oil spills have been one of the greatest environmental problems worldwide. The contamination of soils due to oil spills generates an oil migration down the soil until reaching groundwater. The research focused on remediation of oil-contaminated soils by Ecuadorian natural and acid-surfactant modified zeolites of the Cayo Formation. The natural and modified zeolites were characterized by wavelength dispersive X-ray fluorescence, X-ray powder diffraction, environmental scanning electron microscopy, attenuated total reflectance Fourier transform infrared spectroscopy, and solid-state magic-angle spinning nuclear magnetic resonance spectroscopy. The natural and modified zeolites were added to an artificially oil-contaminated soil to immobilize and limit the uptake of contaminants by rape through changing soil physical and chemical properties in the pot experiment under greenhouse conditions. Several oil contaminated soil-zeolite mixes were tested in replicated laboratory analyses in terms of their ability to absorb oil. Results indicated that the addition of natural and modified zeolites could increase or decrease soil pH and absorption capacity, with high potential in removing oil from soil. Statistical analysis of the experimental data was performed by the variance test analysis. The absorption process had an efficiency of 46% under well-optimized experimental conditions, with an absorbent dose of 30-M, pH = 3.8 and 15 days of contact time.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Los derrames de petróleo han sido uno de los mayores problemas ambientales a nivel mundial. La contaminación de los suelos debido a derrames de petróleo genera una migración de petróleo hacia abajo a través del suelo hasta llegar al agua subterránea. Se investigó la remediación de suelos contaminados con petróleo con zeolitas ecuatorianas naturales y modificadas con ácido y surfactante de la Formación Cayo. Las zeolitas naturales y modificadas se caracterizaron por fluorescencia de rayos X por energía dispersiva, difracción de rayos X de polvo, microscopía electrónica de barrido ambiental, espectroscopia infrarroja de transformada de Fourier - reflectancia total atenuada y espectroscopía de resonancia magnética nuclear de estado sólido bajo giro en ángulo mágico. Las zeolitas naturales y modificadas fueron añadidas a un suelo artificialmente contaminado con petróleo para inmovilizar y limitar la absorción de contaminantes a partir de la captura a través del cambio físico y químico de las propiedades del suelo en macetas experimentales bajo condiciones de invernadero. Diferentes mezclas de suelo contaminado con petróleo-zeolita se probaron en análisis de laboratorio replicados en términos de su capacidad para absorber petróleo. Los resultados indicaron que la adición de zeolitas naturales y modificadas podría aumentar o disminuir el pH y la capacidad de absorción del suelo, teniendo un potencial considerable en la eliminación de petróleo del suelo. El análisis estadístico de los datos experimentales se realizó mediante el análisis de la prueba de varianza. El proceso de absorción tuvo una eficiencia del 46% bajo condiciones experimentales bien optimizadas con una dosis absorbente de 30 M, pH = 3.8 y 15 días de tiempo de contacto.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Remediation]]></kwd>
<kwd lng="en"><![CDATA[Uptake]]></kwd>
<kwd lng="en"><![CDATA[Zeolite]]></kwd>
<kwd lng="en"><![CDATA[Absorbent]]></kwd>
<kwd lng="en"><![CDATA[Oil]]></kwd>
<kwd lng="en"><![CDATA[Soil]]></kwd>
<kwd lng="es"><![CDATA[Remediación]]></kwd>
<kwd lng="es"><![CDATA[Consumo]]></kwd>
<kwd lng="es"><![CDATA[Zeolita]]></kwd>
<kwd lng="es"><![CDATA[Absorbente]]></kwd>
<kwd lng="es"><![CDATA[Petróleo]]></kwd>
<kwd lng="es"><![CDATA[Suelo]]></kwd>
</kwd-group>
</article-meta>
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