<?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>0188-4999</journal-id>
<journal-title><![CDATA[Revista internacional de contaminación ambiental]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Int. Contam. Ambient]]></abbrev-journal-title>
<issn>0188-4999</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Instituto de Ciencias de la Atmósfera y Cambio Climático]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0188-49992019000300705</article-id>
<article-id pub-id-type="doi">10.20937/rica.2019.35.03.15</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[REMOVAL OF HYDROCARBONS FROM DRILL CUTTINGS USING HUMIC ACIDS IN WASHING PROCESSES]]></article-title>
<article-title xml:lang="es"><![CDATA[REMOCIÓN DE HIDROCARBUROS EN RECORTES DE PERFORACIÓN UTILIZANDO ÁCIDOS HÚMICOS EN PROCESOS DE LAVADO]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Interiano López]]></surname>
<given-names><![CDATA[Marcos Leopoldo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramírez Coutiño]]></surname>
<given-names><![CDATA[Víctor Ángel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Zamudio Pérez]]></surname>
<given-names><![CDATA[Evelyn]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Godínez]]></surname>
<given-names><![CDATA[Luis A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez-Valadez]]></surname>
<given-names><![CDATA[Francisco J.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Centro de Investigación y Desarrollo Tecnológico en Electroquímica SC Parque Tecnológico Querétaro Sanfandila ]]></institution>
<addr-line><![CDATA[Santiago de Querétaro ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Tecnológica de México  ]]></institution>
<addr-line><![CDATA[Santiago de Querétaro Querétaro]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2019</year>
</pub-date>
<volume>35</volume>
<numero>3</numero>
<fpage>705</fpage>
<lpage>712</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0188-49992019000300705&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0188-49992019000300705&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0188-49992019000300705&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT In petroleum exploration drilling cuttings are generated, which are toxic residues that contain significant amounts of oil. The oil levels within the cuttings are a risk for marine and terrestrial environments. This study was carried out to investigate the removal of total petroleum hydrocarbons (TPH) in perforation cuttings (OBDC) by a washing process in which humic acids (HA) were used as surfactants. The cuttings contained 114 372 mg/kg of TPH, which were washed with HA solutions, resulting in 80 % removal of OBDC contaminants, applying a washing an additional water rinse. The process effectiveness was found strongly dependent on the HA solution concentration, the highest removal rates were attained using solutions in the range of 2500 to 3000 mg/L, and lower concentrations yielded removal rates lower than 70 %. Comparing the use of HA versus synthetic surfactants, such as sodium dodecyl sulfate (SDS) and tween-20 (TW20), both resulted in lower removal efficiency than HA. An additional advantage of HA is that it is a natural material, therefore there is no risk of toxic side effects that occur with synthetic surfactants.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN En la exploración petrolera se generan recortes de perforación, los cuales son residuos tóxicos que contienen cantidades significativas de aceites. Los niveles de aceite en los recortes representan un riesgo para los ambientes marinos y terrestres. Este estudio se llevó a cabo para investigar la remoción de hidrocarburos totales de petróleo (TPH) en recortes de perforación (OBDC) mediante un proceso de lavado en el que se utilizaron ácidos húmicos (HA) como tensoactivos. Los recortes contenían inicialmente 114 372 mg/kg de TPH, los cuales fueron lavados con soluciones de HA, obteniéndose una remoción del 80 % utilizando un proceso de lavado y posterior enjuague con agua. Los resultados indican que la eficiencia del proceso depende de la concentración del HA, las mayores tasas de remoción se alcanzaron usando soluciones de 2500 a 3000 mg/L y concentraciones más bajas dieron tasas de eliminación menores del 70 %. Comparando el uso de tensoactivos sintéticos, tales como dodecilsulfato de sodio (SDS) y tween-20 (TW20), ambos resultaron con menor eficiencia que los HA. Una ventaja adicional de los HA es que son materiales presentes de manera natural en el ambiente para el que no se han identificado efectos secundarios tóxicos como sucede con los tensoactivos sintéticos.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[TPH]]></kwd>
<kwd lng="en"><![CDATA[surfactants]]></kwd>
<kwd lng="en"><![CDATA[humic acids]]></kwd>
<kwd lng="en"><![CDATA[washing process]]></kwd>
<kwd lng="es"><![CDATA[TPH]]></kwd>
<kwd lng="es"><![CDATA[surfactantes]]></kwd>
<kwd lng="es"><![CDATA[ácidos húmicos]]></kwd>
<kwd lng="es"><![CDATA[proceso de lavado]]></kwd>
</kwd-group>
</article-meta>
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