<?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>S2224-61852022000100114</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Remoción de níquel del sistema Ni(II)-NH3-CO2-SO2-H2O por electrocoagulación a escala de banco. Parte I]]></article-title>
<article-title xml:lang=""><![CDATA[Nickel removing of the system Ni(II)-NH3-CO2-SO2-H2O by electrocoagulation on an bank scale. Part I]]></article-title>
</title-group>
<contrib-group>
<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[Ricardo-Riverón]]></surname>
<given-names><![CDATA[Aymara]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Magaña-Haynes]]></surname>
<given-names><![CDATA[María Elena]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Toro-Alvarez]]></surname>
<given-names><![CDATA[Dania Del]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez-Guillen]]></surname>
<given-names><![CDATA[Crispin]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Empresa de Servicios Técnicos de Computación, Comunicaciones y Electrónica del Níquel (SERCONI)  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Centro de Investigaciones del Níquel (CEDINIQ)  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Oriente Facultad 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>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2022</year>
</pub-date>
<volume>42</volume>
<numero>1</numero>
<fpage>114</fpage>
<lpage>130</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2224-61852022000100114&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2224-61852022000100114&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2224-61852022000100114&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Se estudió la remoción de níquel del sistema Ni(II)-NH3-CO2-SO2-H2O por electrocoagulación a escala de banco en un reactor cilíndrico con agitación, de 25 L de capacidad útil y dos pares de electrodos Al/Al. Se utilizó licor efluente del proceso de destilación de la planta productora de níquel en Punta Gorda, Cuba, y licor sintético preparado en el laboratorio. Los parámetros de operación fueron: pH 8,6, densidad de corriente 8,3 mA/cm2, 40 min de electrólisis, 60 ºC y concentración inicial de níquel disuelto entre 300 y 652 mg/L. Se obtuvo una eficiencia de remoción promedio de 99,67 (+/-0,06) % para los licores efluentes, resultando una concentración en equilibrio máxima de 7 mg/L. El análisis de la cinética de reacción sugiere que la remoción está determinada por la contribución simultánea de la resistencia de los mecanismos: nucleación, la difusión externa, la reacción química y un posible efecto autocatalítico por la ecuación de Roginskii - Shultz.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  The nickel removal from the Ni(II)-NH3-CO2-SO2-H2O system was studied by bench-scale electrocoagulation in a stirred cylindrical reactor, with a useful capacity of 25 L and two pairs of Al/Al electrodes. Effluent liquor from the distillation process of the nickel-producer plant in Punta Gorda, Cuba, and synthetic liquor prepared in the laboratory was used. The operating parameters were: pH 8,6, density of current 8,3 mA/cm2, 40 min of electrolysis, 60 ºC and initial concentration of dissolved nickel between 300 and 652 mg/L. An average removal efficiency of 99,67 (+/-0,06) % was obtained for the effluent liquor, resulting a maximum equilibrium concentration of 7 mg/L. The analysis of the reaction kinetics suggests that the removal is determined by the simultaneous contribution of the resistance of the mechanisms: nucleation, external diffusion, the chemical reaction and a possible autocatalytic effect by the Roginskii-Shultz equation.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[cinética]]></kwd>
<kwd lng="es"><![CDATA[electrocoagulación]]></kwd>
<kwd lng="es"><![CDATA[níquel]]></kwd>
<kwd lng="en"><![CDATA[kinetic]]></kwd>
<kwd lng="en"><![CDATA[electrocoagulation]]></kwd>
<kwd lng="en"><![CDATA[nickel]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[AL&#8209;QODAH]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[AL&#8209;SHANNAG]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Free radical&#8209;assisted electrocoagulation processes for wastewater treatment]]></article-title>
<source><![CDATA[Environ. Chem. Lett.]]></source>
<year>2018</year>
<volume>16</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>695-714</page-range></nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[NEPO]]></surname>
<given-names><![CDATA[N.J.]]></given-names>
</name>
<name>
<surname><![CDATA[GOURICH]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Electrocoagulation process in water treatment: A review of electrocoagulation modeling]]></article-title>
<source><![CDATA[Desalination]]></source>
<year>2017</year>
<volume>404</volume>
<page-range>1-21</page-range></nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[MAGAÑA-IRONS]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[ROJAS-VARGAS]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Remoción de contaminantes del residual lácteo por electrocoagulación con electrodos de aluminio]]></article-title>
<source><![CDATA[Tecnología Química]]></source>
<year>2020</year>
<volume>40</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>19-36</page-range></nlm-citation>
</ref>
<ref id="B4">
<label>4</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[YASIR-ALJABERI]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[MOHAMMEDB]]></surname>
<given-names><![CDATA[W.T.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Analyzing the removal of lead from synthesis wastewater by electrocoagulation technique using experimental design]]></article-title>
<source><![CDATA[Desalination and Water Treatment]]></source>
<year>2018</year>
<volume>111</volume>
<page-range>286-96</page-range></nlm-citation>
</ref>
<ref id="B5">
<label>5</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[DIDAR]]></surname>
<given-names><![CDATA[S.M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Electrocoagulation (EC) technology for wastewater treatment and pollutants removal]]></article-title>
<source><![CDATA[Sustain. Water. Resour. Manag.]]></source>
<year>2017</year>
<volume>5</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>359-80</page-range></nlm-citation>
</ref>
<ref id="B6">
<label>6</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[GARCÍA-SEGURA]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Electrocoagulation and advanced electrocoagulation processes: A general review about the fundamentals, emerging applications]]></article-title>
<source><![CDATA[J. Electroanal. Chem.]]></source>
<year>2017</year>
<volume>801</volume>
<page-range>267-99</page-range></nlm-citation>
</ref>
<ref id="B7">
<label>7</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[AL&#8209;QODAH]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[AL&#8209;SHANNAG]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Heavy metal ions removal from wastewater using electrocoagulation processes]]></article-title>
<source><![CDATA[Sep. Sci. Technol.]]></source>
<year>2017</year>
<volume>52</volume>
<numero>17</numero>
<issue>17</issue>
<page-range>2649-76</page-range></nlm-citation>
</ref>
<ref id="B8">
<label>8</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[VLACHOU]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effect of various parameters in removing Cr and Ni from model wastewater by using electrocoagulation]]></article-title>
<source><![CDATA[Global NEST J.]]></source>
<year>2013</year>
<volume>15</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>494-503</page-range></nlm-citation>
</ref>
<ref id="B9">
<label>9</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[DERMENTZIS]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[VALSAMIDOU]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[LAZARIDOU]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Nickel removal from wastewater by electrocoagulation]]></article-title>
<source><![CDATA[J. Eng. Sci. Tech. Rev.]]></source>
<year>2011</year>
<volume>4</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>188-92</page-range></nlm-citation>
</ref>
<ref id="B10">
<label>10</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[ROJAS-VARGAS]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Remoción de níquel por electrocoagulación del sistema Ni(II)-NH3-CO2-SO2-H2O con electrodos de aluminio]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[RICARDO]]></surname>
<given-names><![CDATA[RIVERON]]></given-names>
</name>
</person-group>
<source><![CDATA[Tecnología Química]]></source>
<year>2020</year>
<volume>40</volume>
<numero>2</numero>
<issue>2</issue>
</nlm-citation>
</ref>
<ref id="B11">
<label>11</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[SABEDOT-PERTILE]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[JONKO]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Treatment of hydrocyanic galvanic effluent by electrocoagulation: Optimization of operating parameters]]></article-title>
<source><![CDATA[Korean J Chem Eng]]></source>
<year>2017</year>
<volume>34</volume>
<numero>10</numero>
<issue>10</issue>
</nlm-citation>
</ref>
<ref id="B12">
<label>12</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[SHUNXI]]></surname>
<given-names><![CDATA[ZHANG]]></given-names>
</name>
<name>
<surname><![CDATA[XIAOHONG]]></surname>
<given-names><![CDATA[YANG]]></given-names>
</name>
<name>
<surname><![CDATA[QUNPENG]]></surname>
<given-names><![CDATA[CHENG]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Treatment of Wastewater Containing Nickel by Electrocoagulation Process]]></article-title>
<source><![CDATA[Environ. Eng. Sci.]]></source>
<year>2017</year>
<volume>34</volume>
<numero>12</numero>
<issue>12</issue>
<page-range>861-871.</page-range></nlm-citation>
</ref>
<ref id="B13">
<label>13</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[BEYAZIT]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Copper (II), Chromium (VI) and Nickel (II) Removal from Metal Plating Effluent by Electrocoagulation]]></article-title>
<source><![CDATA[Int. J. Electrochem. Sci.]]></source>
<year>2014</year>
<volume>9</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>4315-30</page-range></nlm-citation>
</ref>
<ref id="B14">
<label>14</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[LEKHLIF]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[OUDRHIRI]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[ZIDANE]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Study of the electrocoagulation of electroplating industry wastewaters charged by nickel (II) and chromium (VI)]]></article-title>
<source><![CDATA[J. Mater. Environ. Sci.]]></source>
<year>2014</year>
<volume>5</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>111-20</page-range></nlm-citation>
</ref>
<ref id="B15">
<label>15</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[KALEEM]]></surname>
<given-names><![CDATA[M. K]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Efficiency of Aluminum and Iron Electrodes for the Removal of Heavy Metals [(Ni (II), Pb (II), Cd (II)] by Electrocoagulation Method]]></article-title>
<source><![CDATA[J. Korean Chem. Soc.]]></source>
<year>2013</year>
<volume>57</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>316-21</page-range></nlm-citation>
</ref>
<ref id="B16">
<label>16</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[MANSOUR]]></surname>
<given-names><![CDATA[S. E]]></given-names>
</name>
<name>
<surname><![CDATA[HASIEB]]></surname>
<given-names><![CDATA[I. H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Removal of Nickel from drinking water by electrocoagulation technique using alternating current]]></article-title>
<source><![CDATA[Curr. Res. Chem.]]></source>
<year>2012</year>
<volume>4</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>41-50</page-range></nlm-citation>
</ref>
<ref id="B17">
<label>17</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[ROJAS-VARGAS]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Medición del pH durante la destilación del licor producto del proceso Caron (III)]]></article-title>
<source><![CDATA[Tecnología Química]]></source>
<year>2012</year>
<volume>32</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>177-85</page-range></nlm-citation>
</ref>
<ref id="B18">
<label>18</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[ROJAS-VARGAS]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Lixiviación carbonato amoniacal: estimación del níquel disuelto en el efluente de destilación]]></article-title>
<source><![CDATA[Revista de Metalurgia]]></source>
<year>2019</year>
<volume>55</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>1-11</page-range></nlm-citation>
</ref>
<ref id="B19">
<label>19</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[VASUDEVAN]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[LAKSHMI]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[SOZHAN]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Simultaneous removal of Co, Cu, and Cr from water]]></article-title>
<source><![CDATA[Toxicol. Environ. Chem.]]></source>
<year>2012</year>
<volume>94</volume>
<numero>10</numero>
<issue>10</issue>
<page-range>1930-40</page-range></nlm-citation>
</ref>
<ref id="B20">
<label>20</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[IDOWU-ADEOGUN]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[BABU-BALAKRISHNAN]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Kinetics, isothermal and thermodynamics studies of electrocoagulation removal of basic dye rhodamine B from aqueous solution using steel electrodes]]></article-title>
<source><![CDATA[Appl Water Sci]]></source>
<year>2017</year>
<volume>7</volume>
<page-range>1711-23</page-range></nlm-citation>
</ref>
<ref id="B21">
<label>21</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[ROMERO]]></surname>
<given-names><![CDATA[M. M. R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Expresiones analíticas de los modelos cinéticos para la reducción a temperatura programada en la ecuación generalizada de kissinger]]></article-title>
<source><![CDATA[Minería y Geología]]></source>
<year>2004</year>
<page-range>78-86</page-range></nlm-citation>
</ref>
<ref id="B22">
<label>22</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[CANTOS]]></surname>
<given-names><![CDATA[G.M.A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Guachapelí contra Marabú y la cinética de sus pirólisis]]></article-title>
<source><![CDATA[Rev. Cubana Quím]]></source>
<year>2017</year>
<volume>29</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>362-78</page-range></nlm-citation>
</ref>
<ref id="B23">
<label>23</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[LUO SHI]]></surname>
<given-names><![CDATA[YONG]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Computer prediction on solid / solid reaction kinetic]]></article-title>
<source><![CDATA[Trans. Nonferrous Met. Soc. China]]></source>
<year>2001</year>
<volume>11</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>466-70</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
