<?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>S2223-48612024000100004</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[APLICACIÓN DE LA BENTONITA EN EL TRATAMIENTO DE EFLUENTES DE TANQUES DE COMBUSTIBLE EN LA EMPRESA PETROMOC, MOZAMBIQUE]]></article-title>
<article-title xml:lang="en"><![CDATA[APPLICATION OF BENTONITE IN THE TREATMENT OF FUEL TANK EFFLUENTS AT PETROMOC COMPANY, MOZAMBIQUE]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodriguez Suarez]]></surname>
<given-names><![CDATA[Esnaider]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Prieto García]]></surname>
<given-names><![CDATA[Julio Omar]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Eduardo Mondlane Facultad de Ciencias. Departamento de Química ]]></institution>
<addr-line><![CDATA[ Maputo]]></addr-line>
<country>Mozambique</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad UniTiva-Witive Facultad de Ingeniería, Arquitectura y Planeamiento Físico ]]></institution>
<addr-line><![CDATA[ Maputo]]></addr-line>
<country>Mozambique</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Central &#8220;Marta Abreu&#8221; de Las Villas Facultad de Química y Farmacia Departamento Licenciatura en Química]]></institution>
<addr-line><![CDATA[Santa Clara Villa Clara]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2024</year>
</pub-date>
<volume>51</volume>
<numero>1</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2223-48612024000100004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2223-48612024000100004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2223-48612024000100004&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción: Según Barros (2017), la Bentonita es una mezcla de arcillas, generalmente impuras, de grano muy fino, formada principalmente por 60 a 80% de montmorillonita y también Caolinita, Calcita y Pirita. En la base operacional de la Empresa Petromoc Maputo, existe un conjunto de tanques para el almacenamiento de combustibles que forman un complejo de depósitos con tuberías acopladas para la entrada y retirada de combustibles y eliminación de efluentes.  Objetivo: Evaluar el uso de la bentonita en la remoción de cationes tóxicos de los vertidos generados en la empresa Petromoc.  Materiales y Métodos: La recogida de muestras de bentonita se realizó en la empresa de Minerales Industriales. Las muestras efluente y afluente se colectaron en la caja separadora de la base Operacional. Los experimentos fisicoquímicos se ejecutaron en el Laboratorio de Química Analítica de la Universidad Eduardo Mondlane. Para la caracterización física de la bentonita, se determinaron la densidad picnométrica, porosidad (P) y superficie específica. La caracterización mineralógica se realizó por análisis de difracción de rayos X. La caracterización química del efluente y afluente se realizó mediante la Espectroscopía de Emisión Atómica por Plasma Inductivamente acoplado.  Resultados y Discusión: La caracterización mineralógica demostró la presencia de minerales de bentonita. El pH del efluente antes de interactuar con la bentonita era de 3,22, tras la interacción el pH está entre 5,8 a 9. Se determinaron altas concentraciones de Cadmio (Cd), Cromo (Cr), Cobre (Cu), Titanio (Ti) y Zinc (Zn), en el efluente antes de la interacción con la bentonita. Después de la interacción, se verifica remoción de elementos tóxicos.  Conclusiones: La bentonita demostró alta eficiencia en la remoción de cationes tóxicos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction: According to Barros (2017), Bentonite is a mixture of clays, generally impure, very fine grained, formed mainly by 60 to 80% of montmorillonite and also Kaolinite, Calcite and Pyrite. At the operational base of Petromoc Maputo Company, there is a set of tanks for fuel storage, that from a complex of tanks with coupled pipelines for the entry and withdrawal of fuels and effluent disposal.  Objective: To evaluate the use of bentonite in the removal of toxic cations from the effluents generated at Petromoc Company.  Materials and Methods: Bentonite samples were collected at the Industrial Minerals company. The effluent and influent samples were collected in the separator box of the operational base. The physicochemical experiments were carried out at the Analytical Chemistry Laboratory of the Eduardo Mondlane University. For the physical characterization of the bentonite, the pycnometric density, porosity (P) and specific surface area were determined. The mineralogical characterization was performed by X-ray diffraction analysis. The chemical characterization of the effluent and influent was performed by Inductively Coupled Plasma Atomic Emission Spectroscopy.  Results and Discussion: Mineralogical characterization showed the presence of bentonite minerals. The pH of the effluent before interacting with the bentonite was 3.22, after interaction the pH is between 5.8 and 9. High concentrations of Cadmium (Cd), Chromium (Cr), Copper (Cu), Titanium (Ti) and Zinc (Zn) were determined in the effluent before the interaction with the bentonite. After the interaction, a removal of toxic elements is verified.  Conclusions: The bentonite showed high efficiency in the removal of toxic cations.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[bentonita]]></kwd>
<kwd lng="es"><![CDATA[base operacional]]></kwd>
<kwd lng="es"><![CDATA[efluentes]]></kwd>
<kwd lng="es"><![CDATA[remoción]]></kwd>
<kwd lng="en"><![CDATA[bentonite]]></kwd>
<kwd lng="en"><![CDATA[operational basis]]></kwd>
<kwd lng="en"><![CDATA[effluents]]></kwd>
<kwd lng="en"><![CDATA[removation]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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