<?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>2224-6185</journal-id>
<journal-title><![CDATA[Tecnología Química]]></journal-title>
<abbrev-journal-title><![CDATA[RTQ]]></abbrev-journal-title>
<issn>2224-6185</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Oriente]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2224-61852020000100017</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Remoción de contaminantes del residual lácteo por electrocoagulación con electrodos de aluminio]]></article-title>
<article-title xml:lang="en"><![CDATA[Pollutants removal of milky residual by electrocoagulation with aluminum electrodes]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Magaña-Irons]]></surname>
<given-names><![CDATA[Lisset]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rojas-Vargas]]></surname>
<given-names><![CDATA[Armando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Díaz]]></surname>
<given-names><![CDATA[Yudith]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ojeda-Armaignac]]></surname>
<given-names><![CDATA[Elaine]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Empresa de Servicios René Ramos Latour NICAROTEC  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<aff id="Af2">
<institution><![CDATA[,División de Automatización de la Empresa de Servicios Técnicos de Computación, Comunicaciones y Electrónica del Níquel (SERCONI)  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<aff id="Af3">
<institution><![CDATA[,Facultad de Ingeniería Química y Agronomía Facultad de Ingeniería Química y Agronomía Departamento de Ingeniería Química]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2020</year>
</pub-date>
<volume>40</volume>
<numero>1</numero>
<fpage>17</fpage>
<lpage>34</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2224-61852020000100017&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2224-61852020000100017&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2224-61852020000100017&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN En el presente trabajo se estudió la electrocoagulación para reducir la carga contaminante vertida al medioambiente en el residual líquido de la industria láctea, para ello se empleó una celda electroquímica a escala de laboratorio, constituida por un reactor cilíndrico discontinuo, equipada con dos electrodos de aluminio. Se determinó la influencia del pH, la densidad de corriente y el tiempo de electrólisis más adecuado en el proceso de electrocoagulación, empleando el diseño experimental factorial 2k-1 con un nivel central. Se demostró que a la densidad de corriente de 3,39 mA/cm2, pH de 9,5 y tiempo de electrolisis de 5 minutos, es posible elevar la calidad del agua antes de su vertimiento, utilizando posteriormente las operaciones unitarias de sedimentación, centrifugación y filtración. Se obtuvo un 93 % de remoción de la demanda química de oxígeno (DQO) y 97 % de remoción del color; turbidez menor o igual a 10 NTU y conductividad de 7,8 mS/cm, cumpliendo con los requisitos de la norma cubana NC 27:2012. El consumo de energía eléctrica fue de 2,25·10-5 kW·h.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT In the present work, the electrocoagulation was studied experimentally to reduce the pollutant load discharged into the environment of the liquid residual from the dairy industry, for this purpose an electrochemical cell was used on a laboratory scale, constituted by a discontinuous cylindrical reactor, equipped with two aluminum electrodes. The influence of pH, the current density and the most adequate electrolysis time in the electrocoagulation process was determined, using the factorial experimental design 2k-1 with a central level. It was demonstrated that at the current density of 3,39 mA / cm2, pH of 9,5 and electrolysis time of 5 minutes, it is possible to raise the quality of the water before its discharge, using later on the unit operations of sedimentation, centrifugation and filtration. To comply with the requirements of the Cuban Standard NC27:2012 there were obtained: 93 % removal of Chemical Oxygen Demand (COD), 97 % of color removal; turbidity less than or equal to 10 NTU and conductivity of 7,8 mS/cm. The electricity consumption was 2,25·10-5 kW·h.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Electrocoagulación]]></kwd>
<kwd lng="es"><![CDATA[residual líquido]]></kwd>
<kwd lng="es"><![CDATA[DQO]]></kwd>
<kwd lng="en"><![CDATA[Electrocoagulation]]></kwd>
<kwd lng="en"><![CDATA[liquid residual]]></kwd>
<kwd lng="en"><![CDATA[DQO]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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