<?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>1665-2738</journal-id>
<journal-title><![CDATA[Revista mexicana de ingeniería química]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Mex. Ing. Quím]]></abbrev-journal-title>
<issn>1665-2738</issn>
<publisher>
<publisher-name><![CDATA[Universidad Autónoma Metropolitana, División de Ciencias Básicas e Ingeniería]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1665-27382013000300019</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Evaluación de la eficiencia de remoción de materia orgánica y nitrógeno en un filtro percolador con nuevo empaque]]></article-title>
<article-title xml:lang="en"><![CDATA[Evaluation of the removal efficiency of organic matter and nitro gen in a trickling filter with new packing]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Muñoz-Sánchez]]></surname>
<given-names><![CDATA[T.J.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Reyes-Mazzoco]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidad de las Américas Puebla Departamento de Ingeniería Química, Alimentos y Ambiental ]]></institution>
<addr-line><![CDATA[ Puebla]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2013</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2013</year>
</pub-date>
<volume>12</volume>
<numero>3</numero>
<fpage>575</fpage>
<lpage>583</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1665-27382013000300019&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1665-27382013000300019&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1665-27382013000300019&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Se evauó la eficiencia de un filtro percolador para remover DQO de una descarga sanitaria real con DQO promedio de 380 mg/L en la Universidad de las Américas Puebla. El empaque diseñado por los autores operó en el 2012 durante marzo y mayo. La alimentación se ajustó a tres cargas hidráulicas altas (CH), repitiendo el valor intermedio, y se evaluaron durante periodos de 18 días cada una, en una secuencia de estímulos-respuestas que caracterizaron la operación estable del empaque. En marzo (temperaturas diarias entre 10 y 26.2 ºC) se probaron 9.2 m³/ m²d y 15.3 m³/ m²d. En mayo (temperaturas diarias entre 12.2 y 27.9 ºC), con 15.3 m³/ m²d se observó un incremento en el porcentaje de remoción de DQO con respecto al mismo valor de marzo, que se atribuye al incremento de la temperatura promedio diaria. En la última prueba, con CH de 19.6 m³/ m²d se observó consecuentemente que el porcentaje de remoción de DQO se redujo. Las cargas orgánicas removidas entre 1.62 y 3.19 kg DQO/ m³d corresponden a un empaque de alta carga y eficiencia. Se midió el oxígeno disuelto en tres puntos del filtro que coinciden con los valores de reducción de la DQO. La remoción de nitrógeno no fue significativa en los cuatro experimentos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[The efficiency of a trickling filter for COD removal was evaluated with a real sanitary discharge with average COD of 382 mg/L at Universidad de las Américas Puebla campus. The packing designed by the authors operated in 2012 during March and May. The feed was adjusted to three high hydraulic loads (HL), repeating the intermediate value, and were evaluated each for 18 days in a sequence of disturbances-responses that characterized the steady-state operation of the packing. During March (daily temperatures ranging from 10 to 26.2°C) were tested 9.2 m³/ m²d and 15.3 m³/ m²d. In May (daily temperatures ranging from 12.2 to 27.9 °C), with 15.3 m³/ m²d was observed an increase in the removal percentage with respect to the same value in March, that is attributed to the increase in the average daily temperature. In the last test, with 19.6 m³/ m²d was consequently observed that the maximum COD removal decreased. The organic loads removed from 1.62 to 3.19 kg DQO/ m³ d are related to high load and efficiency packing. The dissolved oxygen measured at three points in the packing are related to the values of reduction of COD. Nitrogen removal was no-significant in the four experiments.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[filtro percolador]]></kwd>
<kwd lng="es"><![CDATA[biopelícula]]></kwd>
<kwd lng="es"><![CDATA[eficiencia de remoción]]></kwd>
<kwd lng="es"><![CDATA[carga hidráulica]]></kwd>
<kwd lng="en"><![CDATA[trickling filter]]></kwd>
<kwd lng="en"><![CDATA[biofilm]]></kwd>
<kwd lng="en"><![CDATA[removal efficiency]]></kwd>
<kwd lng="en"><![CDATA[hydraulic load]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="justify"><font face="verdana" size="4">Ingenier&iacute;a ambiental</font></p>              <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>              <p align="center"><font face="verdana" size="4"><b>Evaluaci&oacute;n de la eficiencia de remoci&oacute;n de materia org&aacute;nica y nitr&oacute;geno en un filtro percolador con nuevo empaque</b></font></p>              <p align="center"><font face="verdana" size="2">&nbsp;</font></p>              <p align="center"><font face="verdana" size="3"><b>Evaluation of the removal efficiency of organic matter and nitro gen in a trickling filter with new packing</b></font></p>              <p align="center"><font face="verdana" size="2">&nbsp;</font></p>              <p align="center"><font face="verdana" size="2"><b>T.J. Mu&ntilde;oz&#45;S&aacute;nchez y R. Reyes&#45;Mazzoco*</b></font></p>              <p align="center"><font face="verdana" size="2">&nbsp;</font></p>              <p align="justify"><font face="verdana" size="2"><i>Departamento de Ingenier&iacute;a Qu&iacute;mica, Alimentos y Ambiental, Universidad de las Am&eacute;ricas Puebla, Ex Hacienda Santa Catarina M&aacute;rtir Cholula, Puebla, CP 72810, M&eacute;xico. * Autor para la correspondencia. E&#45;mail:</i> <a href="mailto:rene.reyes@udlap.mx">rene.reyes@udlap.mx</a> <i>t. 222 2292660, f. 222 2292727.</i></font></p>              <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>              ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">Recibido 22 de Abril de 2013     <br>     Aceptado 20 de Octubre de 2013</font></p>              <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>              <p align="justify"><font face="verdana" size="2"><b>Resumen</b></font></p>              <p align="justify"><font face="verdana" size="2">Se evau&oacute; la eficiencia de un filtro percolador para remover DQO de una descarga sanitaria real con DQO promedio de 380 mg/L en la Universidad de las Am&eacute;ricas Puebla. El empaque dise&ntilde;ado por los autores oper&oacute; en el 2012 durante marzo y mayo. La alimentaci&oacute;n se ajust&oacute; a tres cargas hidr&aacute;ulicas altas (CH), repitiendo el valor intermedio, y se evaluaron durante periodos de 18 d&iacute;as cada una, en una secuencia de est&iacute;mulos&#45;respuestas que caracterizaron la operaci&oacute;n estable del empaque. En marzo (temperaturas diarias entre 10 y 26.2 <sup>o</sup>C) se probaron 9.2 m<sup>3</sup>/ m<sup>2</sup>d y 15.3 m<sup>3</sup>/ m<sup>2</sup>d. En mayo (temperaturas diarias entre 12.2 y 27.9 <sup>o</sup>C), con 15.3 m<sup>3</sup>/ m<sup>2</sup>d se observ&oacute; un incremento en el porcentaje de remoci&oacute;n de DQO con respecto al mismo valor de marzo, que se atribuye al incremento de la temperatura promedio diaria. En la &uacute;ltima prueba, con CH de 19.6 m<sup>3</sup>/ m<sup>2</sup>d se observ&oacute; consecuentemente que el porcentaje de remoci&oacute;n de DQO se redujo. Las cargas org&aacute;nicas removidas entre 1.62 y 3.19 kg DQO/ m<sup>3</sup>d corresponden a un empaque de alta carga y eficiencia. Se midi&oacute; el ox&iacute;geno disuelto en tres puntos del filtro que coinciden con los valores de reducci&oacute;n de la DQO. La remoci&oacute;n de nitr&oacute;geno no fue significativa en los cuatro experimentos.</font></p>              <p align="justify"><font face="verdana" size="2"><b>Palabras clave:</b> filtro percolador, biopel&iacute;cula, eficiencia de remoci&oacute;n, carga hidr&aacute;ulica. </font></p>             <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>             <p align="justify"><font face="verdana" size="2"><b>Abstract</b></font></p>              <p align="justify"><font face="verdana" size="2">The efficiency of a trickling filter for COD removal was evaluated with a real sanitary discharge with average COD of 382 mg/L at Universidad de las Am&eacute;ricas Puebla campus. The packing designed by the authors operated in 2012 during March and May. The feed was adjusted to three high hydraulic loads (HL), repeating the intermediate value, and were evaluated each for 18 days in a sequence of disturbances&#45;responses that characterized the steady&#45;state operation of the packing. During March (daily temperatures ranging from 10 to 26.2&deg;C) were tested 9.2 m<sup>3</sup>/ m<sup>2</sup>d and 15.3 m<sup>3</sup>/ m<sup>2</sup>d. In May (daily temperatures ranging from 12.2 to 27.9 &deg;C), with 15.3 m<sup>3</sup>/ m<sup>2</sup>d was observed an increase in the removal percentage with respect to the same value in March, that is attributed to the increase in the average daily temperature. In the last test, with 19.6 m<sup>3</sup>/ m<sup>2</sup>d was consequently observed that the maximum COD removal decreased. The organic loads removed from 1.62 to 3.19 kg DQO/ m<sup>3</sup> d are related to high load and efficiency packing. The dissolved oxygen measured at three points in the packing are related to the values of reduction of COD. Nitrogen removal was no&#45;significant in the four experiments.</font></p>              <p align="justify"><font face="verdana" size="2"><b>Keywords:</b> trickling filter, biofilm, removal efficiency, hydraulic load.</font></p>             ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">&nbsp;</font></p>             <p align="justify"><font face="verdana" size="2"><a href="/pdf/rmiq/v12n3/v12n3a19.pdf" target="_blank">DESCARGAR ART&Iacute;CULO EN FORMATO PDF</a></font></p>             <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>             <p align="justify"><font face="verdana" size="2"><b>Referencias</b></font></p>              <!-- ref --><p align="justify"><font face="verdana" size="2">Boltz, J. P., La Motta, E. J., and Madrigal, J. A. (2006). The role of bioflocculation on suspended solids and particulate COD removal in the trickling filter process. <i>Journal of Environmental Engineering 132,</i> 506&#45;513.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8569230&pid=S1665-2738201300030001900001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>              <!-- ref --><p align="justify"><font face="verdana" size="2">Corona&#45;Gonz&aacute;lez, C.I., Ramos&#45;Ibarra, J.R., Guti&eacute;rrez&#45;Gonz&aacute;lez P., Pelayo&#45;Ortiz, C., Guatemala&#45;Morales, G.M. and Arriola&#45;Guevara, E. (2013) The use of response surface methodology to evaluate the fermentation conditions in the production of tepache. <i>Revista Mexicana de Ingenier&iacute;a Qu&iacute;mica 12,</i> 19&#45;28.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8569232&pid=S1665-2738201300030001900002&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>              <!-- ref --><p align="justify"><font face="verdana" size="2">Espinosa&#45;Rodr&iacute;guez, M. A., Flores&#45;&Aacute;lamo, N., Esparza&#45;Soto, M. y Fall, C. (2012). Efecto de la temperatura en la tasa de crecimiento y decaimiento heterotr&oacute;fico en el rango de temperatura de 20 a 32 &#176;C en un proceso de lodos activados. <i>Revista Mexicana de Ingenier&iacute;a Qu&iacute;mica 11,</i> 309&#45;321.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8569234&pid=S1665-2738201300030001900003&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>              ]]></body>
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<body><![CDATA[ ]]></body><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Boltz]]></surname>
<given-names><![CDATA[J. P.]]></given-names>
</name>
<name>
<surname><![CDATA[La Motta]]></surname>
<given-names><![CDATA[E. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Madrigal]]></surname>
<given-names><![CDATA[J. A.]]></given-names>
</name>
</person-group>
<article-title xml:lang="en"><![CDATA[The role of bioflocculation on suspended solids and particulate COD removal in the trickling filter process]]></article-title>
<source><![CDATA[Journal of Environmental Engineering]]></source>
<year>2006</year>
<volume>132</volume>
<page-range>506-513</page-range></nlm-citation>
</ref>
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