<?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>2223-4861</journal-id>
<journal-title><![CDATA[Centro Azúcar]]></journal-title>
<abbrev-journal-title><![CDATA[cen. az.]]></abbrev-journal-title>
<issn>2223-4861</issn>
<publisher>
<publisher-name><![CDATA[Editorial Feijóo]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2223-48612021000300041</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[CAPACIDAD DE ADSORCIÓN DE MATERIALES NATURALES PARA EL TRATAMIENTO DE AGUAS DE PROCESO DE LA ACTIVIDAD PETROLERA]]></article-title>
<article-title xml:lang="en"><![CDATA[ADSORPTION CAPACITY OF NATURAL MATERIALS FOR PROCESSING WATERS FROM OIL ACTIVITY TREATMENT]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Díaz Rodríguez]]></surname>
<given-names><![CDATA[Yuletsis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mendiola Lau]]></surname>
<given-names><![CDATA[Leonardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González Suárez]]></surname>
<given-names><![CDATA[Aimeé]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rivas Trasancos]]></surname>
<given-names><![CDATA[Lester]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Romero Silva]]></surname>
<given-names><![CDATA[Roberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Centro de Investigación del Petróleo (CEINPET)  ]]></institution>
<addr-line><![CDATA[Cerro La Habana]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Tecnológica de la Habana &#8220;José Antonio Echeverría&#8221; Facultad de Ingeniería Química Centro de Estudio de Ingeniería de Procesos]]></institution>
<addr-line><![CDATA[Marianao La Habana]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2021</year>
</pub-date>
<volume>48</volume>
<numero>3</numero>
<fpage>41</fpage>
<lpage>52</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2223-48612021000300041&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2223-48612021000300041&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2223-48612021000300041&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción: Las aplicaciones actuales de tratamiento de residuales líquidos se dirigen hacia el estudio de nuevos materiales renovables, con elevada disponibilidad para ser aprovechados como soportes que actúan como filtro natural con muy alta porosidad y propiedades adsorbentes. La compleja composición de las aguas de producción y residuales de la actividad petrolera demanda la adopción de métodos que utilicen materiales adsorbentes más eficientes para facilitar el manejo y disposición final de sus efluentes.  Objetivo:  Determinar la capacidad de adsorción aparente de diferentes materiales naturales para el tratamiento de aguas residuales de la actividad petrolera.  Materiales y Métodos: Los indicadores de contaminación determinados fueron la Demanda Química de Oxígeno, sulfuros, grasas y aceites, para lo cual se siguieron normas internacionales APHA e ISO, así como las isotermas de adsorción y cinética de materiales como bagazo de caña, paja de arroz, agromena, zeolita y lodo activo.  Resultados y Discusión: Todos los materiales presentaron la mayor capacidad de adsorción a los 20 min de contacto, destacándose bajo condiciones de empaque valores de este parámetro para DQO de 67 y 70 mg/g con el bagazo y la paja de arroz; y remociones superiores al 95% para sulfuros, grasas y aceites con todos los materiales.  Conclusiones: Se alcanzaron los mayores valores de capacidad de adsorción de DQO (26-63 mg/g) y de sulfuros (10-12 mg/g) a 20 min de contacto con el residual y bajo condiciones de empaque, los mejores resultados corresponden al bagazo de caña, la paja de arroz y el producto mejorador.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction: Current applications for liquid waste treatment are directed towards the study of new renewable materials, with high availability to be used as supports that act as a natural filter with very high porosity and adsorbent properties. The wastewaters of the oil activity complex composition demands the adoption of methods that use more efficient adsorbent materials to facilitate the management and final disposal of its effluents.  Objective: To determine the apparent adsorption capacity of different natural materials for the treatment of oil activity wastewater.  Materials and Methods: The contamination indicators determined were the Chemical Oxygen Demand, sulfides, fats and oils, for which international APHA and ISO standards were used, as well as the adsorption and kinetic isotherms of materials such as sugarcane bagasse, rice straw, agromena, zeolite and active mud.  Results and Discussion: All the materials presented the highest adsorption capacity after 20 min of contact, with values of this parameter standing out for COD of 67 and 70 mg/g with bagasse and rice straw; and removals greater than 95% for sulfides, fats and oils with all materials.  Conclusions: The highest values of COD adsorption capacity (26-63 mg/g) and sulfides (10-12 mg/g) were reached at 20 min of contact with the residual and under packing conditions, the best results correspond to bagasse cane, rice straw and improver product.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[actividad petrolera]]></kwd>
<kwd lng="es"><![CDATA[adsorción]]></kwd>
<kwd lng="es"><![CDATA[efluentes]]></kwd>
<kwd lng="es"><![CDATA[materiales orgánicos]]></kwd>
<kwd lng="en"><![CDATA[petroleum activity]]></kwd>
<kwd lng="en"><![CDATA[adsorption]]></kwd>
<kwd lng="en"><![CDATA[effluent]]></kwd>
<kwd lng="en"><![CDATA[organic material]]></kwd>
</kwd-group>
</article-meta>
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