<?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>0250-5460</journal-id>
<journal-title><![CDATA[Revista Boliviana de Química]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Bol. Quim]]></abbrev-journal-title>
<issn>0250-5460</issn>
<publisher>
<publisher-name><![CDATA[Universidad Mayor de San Andrés]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0250-54602023000100021</article-id>
<article-id pub-id-type="doi">10.34098/2078-3949.40.1.3</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Diseño de un reactor cilindro-parabólico compuesto (CPC) para la oxidación fotocatalítica de cianuro en medio acuoso]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Uberhuaga]]></surname>
<given-names><![CDATA[Alejandro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Santelices]]></surname>
<given-names><![CDATA[Juan C.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Velásquez]]></surname>
<given-names><![CDATA[Miguel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cabrera]]></surname>
<given-names><![CDATA[Saúl]]></given-names>
</name>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lopez]]></surname>
<given-names><![CDATA[Luis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,aff1  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<aff id="Af2">
<institution><![CDATA[,aff2  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2023</year>
</pub-date>
<volume>40</volume>
<numero>1</numero>
<fpage>21</fpage>
<lpage>40</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.bo/scielo.php?script=sci_arttext&amp;pid=S0250-54602023000100021&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.bo/scielo.php?script=sci_abstract&amp;pid=S0250-54602023000100021&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.bo/scielo.php?script=sci_pdf&amp;pid=S0250-54602023000100021&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Se diseñó un reactor Cilindro-parabólico Compuesto (CPC) en base a un estudio cinético para establecer parámetros para la eliminación de cianuro por fotocatálisis heterogénea, a escala de laboratorio. En la prueba cinética de verificación el valor de kCN obtenido tuvo una variación del 18.52% con respecto al valor estimado por el modelo matemático (kCN=0.0367 min-1). Se requirió de una energía acumulada por unidad de volumen de 39.76 kJ/L para eliminar cianuro hasta una concentración equivalente al límite permisible para descargas diarias según el RASIM y el RMCH de la Ley Nº1333 de medio ambiente. Las dimensiones del reactor CPC a escala piloto son: 0.553 m2 de área total y 20 litros de capacidad de tratamiento. Los colectores solares tienen una dimensión de: 12.29 cm de ancho, 5.26 cm de alto, 1.35 cm de altura de pico y 39.11 mm de diámetro externo de tubo receptor. Se determinó un tiempo de 264.98 minutos para que el sistema pueda reducir las concentraciones de cianuro de 10 mg/L hasta un mínimo de 0.20 mg/L presentes en agua. La temperatura máxima que alcanzó el sistema fue de 26.28 ºC a una radiación]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Compound parabolic concentrator (CPC) development for the photocatalytic oxidation of cyanide in aqueous medium. A Compound Parabolic Concentrator (CPC) reactor was developed based on a kinetic study to establish parameters for cyanide removal by heterogeneous photocatalysis, at laboratory scale. In the kinetic verification test, the kCN value obtained had a variation of 18.52% with respect to the value estimated by the mathematical model (kCN=0.0367 min-1). An accumulated energy per unit volume of 39.76 kJ/L was required to remove cyanide up to a concentration equivalent to the permissible limit for daily discharges according to RASIM and RMCH of Law No. 1333 on the environment. The dimensions of the pilot scale CPC reactor are: 0.553 m2 of total area and 20 liters of treatment capacity. The solar collectors have a dimension of: 12.29 cm wide, 5.26 cm high, 1.35 cm peak height and 39.11 mm external diameter of receiver tube. A time of 264.98 minutes was determined for the system to reduce cyanide concentrations from 10 mg/L to a minimum of 0.20 mg/L present in water. The maximum temperature reached by the system was 26.28 ºC at UV- A radiation of 49.98 W/m2, and 31.55 ºC when the latter was increased to 51.3 W/m2. An optical efficiency of 86.36% was calculated, which favored the incidence of UV solar rays until reaching the heart of the circulating liquid. The power needed to transport the fluid through the system was 8.20 W (0.011 HP) to ensure a full turbulent regime.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Compound Parabolic-Cylindrical (CPC)]]></kwd>
<kwd lng="en"><![CDATA[Photocatalysis]]></kwd>
<kwd lng="en"><![CDATA[Cyanide]]></kwd>
<kwd lng="en"><![CDATA[Titanium Dioxide]]></kwd>
<kwd lng="en"><![CDATA[Langmuir-Hinshelwood]]></kwd>
<kwd lng="es"><![CDATA[Cilindro-parabólico Compuesto (CPC)]]></kwd>
<kwd lng="es"><![CDATA[Fotocatálisis]]></kwd>
<kwd lng="es"><![CDATA[Cianuro]]></kwd>
<kwd lng="es"><![CDATA[Dióxido de Titanio]]></kwd>
<kwd lng="es"><![CDATA[Langmuir-Hinshelwood]]></kwd>
</kwd-group>
</article-meta>
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