<?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>S2223-48612019000300001</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[ESTUDIO CINÉTICO Y TERMODINÁMICO DE LA ADSORCIÓN DE PLOMO (II) EN CENIZA DE BAGAZO DE CAÑA DE AZÚCAR]]></article-title>
<article-title xml:lang="en"><![CDATA[KYNETICS AND THERMODYNAMIC RESEARCH OF LEAD (II) ADSORPTION IN SUGARCANE BAGASSE ASH]]></article-title>
</title-group>
<contrib-group>
<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 contrib-type="author">
<name>
<surname><![CDATA[Aguilera Casabella]]></surname>
<given-names><![CDATA[Diana María]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Curbelo Sánchez]]></surname>
<given-names><![CDATA[Alfredo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Broche Galindo]]></surname>
<given-names><![CDATA[María H.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mollineda Trujillo]]></surname>
<given-names><![CDATA[Ángel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Central &#8220;Marta Abreu&#8221; de las Villas Facultad de Química y Farmacia Departamento de Licenciatura en Química]]></institution>
<addr-line><![CDATA[Santa Clara Villa Clara]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Centro de Estudios y Servicios Ambientales de Villa Clara (CESAMVC)  ]]></institution>
<addr-line><![CDATA[Santa Clara Villa Clara]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Central &#8220;Marta Abreu&#8221; de las Villas Facultad de Química y Farmacia Departamento de Ingeniería Química]]></institution>
<addr-line><![CDATA[Santa Clara Villa Clara]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Central &#8220;Marta Abreu&#8221; de las Villas Facultad de Ciencias Agropecuarias Centro de Investigaciones Agropecuarias (CIAP)]]></institution>
<addr-line><![CDATA[Santa Clara Villa Clara]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2019</year>
</pub-date>
<volume>46</volume>
<numero>3</numero>
<fpage>1</fpage>
<lpage>10</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2223-48612019000300001&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2223-48612019000300001&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2223-48612019000300001&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN En el presente estudio se expone la adsorción de plomo en ceniza de bagazo de caña de azúcar. Los modelos cinéticos expuestos son los de seudosegundo y seudoprimer orden, Elovich y difusión intrapartícula. Las isotermas analizadas corresponden a los modelos de Langmuir, Freundlich, Toth y Dubinin. Desde el punto de vista cinético en los casos analizados a las temperaturas de 25,40 y 60 oC se ajustan al modelo de seudosegundo orden con tendencia a un aumento de la constante específica de velocidad de adsorción al aumentar la temperatura. Los modelos isotérmicos de adsorción se ajustan al modelo de Langmuir para las temperaturas bajo estudio. Se establece el valor del calor isostérico de 0,91 kJ/mol y la energía de activación del proceso es 10,01 kJ/mol, denotando un proceso físico de adsorción. Los valores de variación de entalpía de - 3,14 kJ/mol y variación de entropía del estado activado de la adsorción de 0,01 kJ/molK, denotan un bajo desprendimiento de calor y su poca relevancia en el desorden del sistema.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Lead adsorption in sugar cane bagasse ash is exposed in present study. The described kinetic models respond to pseudo second and pseudo first order behavior, Elovich and intraparticle diffusion. The analyzed isotherms correspond to the Langmuir, Freundlich, Tóth and Dubinin models. From the kinetic point of view the analyzed cases for temperatures of 25, 40 and 60 C, are adjusted to the pseudo-second order model with an increase tendency for the specific adsorption speed constant when the temperature increases. The isothermal adsorption models respond to Langmuir model for studied temperatures. The isosteric heat value of 0.91 kJ / mole is established and the process activation energy is 10.01 kJ / mole, denoting a physical process of adsorption. The enthalpy variation value is -3.14 kJ / mole and the entropy variation is 0.01 kJ / mole K denoting its low heat evolution and its little relevant system disorder.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[adsorción]]></kwd>
<kwd lng="es"><![CDATA[caña de azúcar]]></kwd>
<kwd lng="es"><![CDATA[ceniza]]></kwd>
<kwd lng="es"><![CDATA[cinética]]></kwd>
<kwd lng="es"><![CDATA[plomo]]></kwd>
<kwd lng="es"><![CDATA[termodinámica]]></kwd>
<kwd lng="en"><![CDATA[adsorption]]></kwd>
<kwd lng="en"><![CDATA[sugar cane]]></kwd>
<kwd lng="en"><![CDATA[ash]]></kwd>
<kwd lng="en"><![CDATA[kinetics]]></kwd>
<kwd lng="en"><![CDATA[lead]]></kwd>
<kwd lng="en"><![CDATA[thermodynamics]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Azizian]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Kinetic Models of Sorption a Theoretical Analysis]]></article-title>
<source><![CDATA[Journal Colloid and Interface Science]]></source>
<year>2004</year>
<volume>276</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>47-52</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chun-I]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Li-Hua]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Rate equations and isotherms for two adsorption models]]></article-title>
<source><![CDATA[Journal Institute of Chinese Institute of Chemical Engineers]]></source>
<year>2008</year>
<volume>39</volume>
<page-range>579-85</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dangcong]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Bernet]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Degedenes]]></surname>
<given-names><![CDATA[J.P.]]></given-names>
</name>
<name>
<surname><![CDATA[Moletta]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effects of Oxygen Supply Methods on the Performance of a Sequencing Batch Reactor for High Ammonium Nitri&#64257;cation]]></article-title>
<source><![CDATA[Water Environment Research]]></source>
<year>2000</year>
<volume>72</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>195-200</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ejikeme]]></surname>
<given-names><![CDATA[P.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Okoye]]></surname>
<given-names><![CDATA[A.I.]]></given-names>
</name>
<name>
<surname><![CDATA[Onukwuli]]></surname>
<given-names><![CDATA[O.D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Kinetics and isotherm studies of Cu (II) and Pb (II) ions removal from simulated waste water by Gambeya albida seed shell activated carbon]]></article-title>
<source><![CDATA[The African Review of Physics]]></source>
<year>2011</year>
<volume>6</volume>
<numero>17</numero>
<issue>17</issue>
<page-range>143-52</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Eyring]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Walter]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Kimball]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<source><![CDATA[Quantum Chemistry]]></source>
<year>1949</year>
<page-range>210-9</page-range><publisher-loc><![CDATA[New York ]]></publisher-loc>
<publisher-name><![CDATA[John Wiley and Sons]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Foo]]></surname>
<given-names><![CDATA[K.Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Hameed]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Review. Insights into the modeling of adsorption isotherm systems]]></article-title>
<source><![CDATA[Chemical Engineering Journal]]></source>
<year>2001</year>
<volume>156</volume>
<page-range>2-10</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gregg]]></surname>
<given-names><![CDATA[S.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Sing]]></surname>
<given-names><![CDATA[K.S.W.]]></given-names>
</name>
</person-group>
<source><![CDATA[Adsorption, surface area, and porosity]]></source>
<year>1982</year>
<page-range>234-6</page-range><publisher-loc><![CDATA[London ]]></publisher-loc>
<publisher-name><![CDATA[Academic Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Igwe]]></surname>
<given-names><![CDATA[J.C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A bioseparation process for removing heavy metals from waste using biosorbents]]></article-title>
<source><![CDATA[African Journal of Biotechnology]]></source>
<year>2006</year>
<volume>5</volume>
<numero>12</numero>
<issue>12</issue>
<page-range>1167-79</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Prieto]]></surname>
<given-names><![CDATA[J.O.]]></given-names>
</name>
<name>
<surname><![CDATA[Rodríguez]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Mollineda]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Estudio de los mecanismos cinéticos y difusivos en la adsorción de Cu (II) en ceniza de bagazo de caña de azúcar]]></article-title>
<source><![CDATA[Centro Azúcar]]></source>
<year>2016</year>
<volume>43</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>36-41</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Prieto]]></surname>
<given-names><![CDATA[J.O]]></given-names>
</name>
<name>
<surname><![CDATA[Lestayo]]></surname>
<given-names><![CDATA[J.A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Adsorción de colorantes en adsorbentes de base silícica]]></source>
<year>2017</year>
<page-range>61-4</page-range><publisher-name><![CDATA[Editorial Académica Española]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Peña]]></surname>
<given-names><![CDATA[C.E.]]></given-names>
</name>
<name>
<surname><![CDATA[Carter]]></surname>
<given-names><![CDATA[D.E.]]></given-names>
</name>
<name>
<surname><![CDATA[Ayala-Ferro]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<source><![CDATA[Toxicología Ambiental. Evaluación de Riesgos y Restauración Ambiental]]></source>
<year>2001</year>
<page-range>95-121</page-range><publisher-name><![CDATA[University of Arizona]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pei-Sin]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Siew-Ling]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Sie-Tiong]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Yung-Tse]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Siew-Teng]]></surname>
<given-names><![CDATA[O]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Removal of hazardous heavy metals from aqueous environment by low-cost adsorption materials]]></article-title>
<source><![CDATA[Environmental Chemistry Letters]]></source>
<year>2014</year>
<volume>12</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>15-25</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="book">
<collab>Departamento de Salud y Servicios Humanos de los Estados Unidos</collab>
<source><![CDATA[Resumen de Salud Pública, Plomo]]></source>
<year>2005</year>
<publisher-name><![CDATA[Servicio de Salud Pública., Agencia para Sustancias Tóxicas y el Registro de Enfermedades]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rodríguez-Díaz]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Prieto]]></surname>
<given-names><![CDATA[J.O.]]></given-names>
</name>
<name>
<surname><![CDATA[Bravo]]></surname>
<given-names><![CDATA[L.R.]]></given-names>
</name>
<name>
<surname><![CDATA[Carlos]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Arteaga]]></surname>
<given-names><![CDATA[L.E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Comprehensive characterization of Sugarcane Bagasse Ash for its use as an adsorbent]]></article-title>
<source><![CDATA[BioEnergy Research]]></source>
<year>2015</year>
<volume>8</volume>
<page-range>1885-95</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Stoeckli]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Dubinin´s theory and its contribution to adsorption science]]></article-title>
<source><![CDATA[Russian Chemical Bulletin International Edition]]></source>
<year>2001</year>
<volume>50</volume>
<numero>12</numero>
<issue>12</issue>
<page-range>2265-72</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Srivastava]]></surname>
<given-names><![CDATA[V.C.]]></given-names>
</name>
<name>
<surname><![CDATA[Mall]]></surname>
<given-names><![CDATA[I.D]]></given-names>
</name>
<name>
<surname><![CDATA[Mishra]]></surname>
<given-names><![CDATA[I.M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Equilibrium modelling of single and binary adsorption of cadmium and nickel onto bagasse fly ash]]></article-title>
<source><![CDATA[Chemical Engineering Journal]]></source>
<year>2006</year>
<volume>117</volume>
<page-range>79-91</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
