<?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>0188-4999</journal-id>
<journal-title><![CDATA[Revista internacional de contaminación ambiental]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Int. Contam. Ambient]]></abbrev-journal-title>
<issn>0188-4999</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Instituto de Ciencias de la Atmósfera y Cambio Climático]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0188-49992020000200303</article-id>
<article-id pub-id-type="doi">10.20937/rica.53111</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[EVALUACIÓN DE UN PROCESO ANÓXICO-AEROBIO-REACTOR BIOLÓGICO DE MEMBRANA CON ALTO CONTENIDO DE NITRÓGENO]]></article-title>
<article-title xml:lang="en"><![CDATA[EVALUATION OF AN ANOXIC-AEROBIC MBR PROCESS WITH HIGH NITROGEN CONTENT]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Espinosa-Rodríguez]]></surname>
<given-names><![CDATA[Miguel Ángel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Delgado-Delgado]]></surname>
<given-names><![CDATA[Raúl]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hidalgo-Millán]]></surname>
<given-names><![CDATA[Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Nayarit Programa Académico de Ingeniería Química ]]></institution>
<addr-line><![CDATA[Tepic Nayarit]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2020</year>
</pub-date>
<volume>36</volume>
<numero>2</numero>
<fpage>303</fpage>
<lpage>320</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0188-49992020000200303&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0188-49992020000200303&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0188-49992020000200303&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN La industria de elaboración de harinas de pescado genera aguas residuales con alto contenido de carga orgánica y nitrógeno que se deben tratar antes de descargarse a un cuerpo receptor. El objetivo de este trabajo de investigación fue evaluar el sistema de tratamiento biológico (anóxico-aerobio-reactor biológico de membrana) que opera una empresa dedicada a la elaboración de harinas de sardina y atún. Este sistema de tratamiento presenta reacciones de nitrificación y desnitrificación incompletas, lo cual ocasiona que la remoción de nitrógeno sea deficiente e incumpla con los límites máximos permitidos de descarga. El trabajo se desarrolló con escenarios de evaluación, ampliación y modificación del proceso a través de la simulación con el programa GPS-X. Los resultados mostraron desnitrificación deficiente en el reactor anóxico, por lo que se requiere un incremento de nitrificación en el reactor aerobio. El reactor biológico de membrana (MBR, por sus siglas en inglés) cumplió sólo con el objetivo de filtración. Con base en ello se simularon escenarios de cambios en el proceso incluyendo la eliminación del MBR y la adecuación de un clarificador secundario, el cual ayudaría en el proceso de desnitrificación por sus condiciones anóxicas. Con el sistema actual se tiene una remoción de nitrógeno total del 49.5 %, mientras que con la adecuación del sistema se alcanzó una eficiencia del 94.7 %.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT The fishmeal processing industry generates wastewater with high content of organic load and nitrogen, therefore it should be treated before its discharge into a receiver body. The objective of this research work was to evaluate a biological treatment system (anoxic-aerobic-membrane biological reactor) operated by a company dedicated to the processing of sardine and tuna meal. This treatment system presents incomplete nitrification and denitrification reactions, which cause deficient removal of nitrogen and non-compliance with the maximum allowable discharge limits. The work was developed with scenarios for evaluation, extension and modification of this process through a simulation with the GPS-X software. The results showed deficient denitrification in the anoxic reactor, therefore increased nitrification is required in the aerobic reactor, and the membrane biological reactor (MBR) only fulfilled the objective of filtration. On this basis, scenarios were simulated for modifications in the process, including the elimination of the MBR and the adequacy of a secondary clarifier, which would help in the denitrification process due to its anoxic conditions. The actual system it has a total effectiveness 49.5 % for nitrogen removal, while the adequacy of the system improved the efficiency to 94.7 %.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[desnitrificación]]></kwd>
<kwd lng="es"><![CDATA[GPS-X]]></kwd>
<kwd lng="es"><![CDATA[nitrificación]]></kwd>
<kwd lng="en"><![CDATA[denitrification]]></kwd>
<kwd lng="en"><![CDATA[GPS-X]]></kwd>
<kwd lng="en"><![CDATA[nitrification]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="book">
<collab>APHA</collab>
<source><![CDATA[Standard methods for the examination de water and wastewater]]></source>
<year>2005</year>
<edition>Seventeenth</edition>
<page-range>1364</page-range><publisher-loc><![CDATA[Washington ]]></publisher-loc>
<publisher-name><![CDATA[. American Public Health Association, American Water Works Association, Water Pollution Control Federation]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bhadra]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Narvaez]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Thomson]]></surname>
<given-names><![CDATA[D.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Bridges]]></surname>
<given-names><![CDATA[G.E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Non-destructive detection of fish spoilage using a wireless basic volatile sensor]]></article-title>
<source><![CDATA[Talanta]]></source>
<year>2015</year>
<volume>134</volume>
<page-range>718-23</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dulekgurgen]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Dogruel]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Karahan]]></surname>
<given-names><![CDATA[Ö.]]></given-names>
</name>
<name>
<surname><![CDATA[Orhon]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Size distribution of wastewater COD fractions as an index for biodegradability]]></article-title>
<source><![CDATA[Water Res.]]></source>
<year>2006</year>
<volume>40</volume>
<page-range>273-82</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Espinosa]]></surname>
<given-names><![CDATA[M.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Bravo]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
<name>
<surname><![CDATA[Ortega]]></surname>
<given-names><![CDATA[J.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Hidalgo]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evaluación de la nitrificación a través de perfiles operacionales en un reactor aerobio]]></article-title>
<source><![CDATA[Ingenierías]]></source>
<year>2014</year>
<volume>XVII</volume>
<numero>62</numero>
<issue>62</issue>
<page-range>50-9</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Espinosa]]></surname>
<given-names><![CDATA[M.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Ruiz]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Hidalgo]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Delgado]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Efecto de la carga hidráulica de un filtro percolador en el proceso de nitrificación]]></article-title>
<source><![CDATA[Rev. Mex. Ing. Quím.]]></source>
<year>2019</year>
<volume>18</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>107-13</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Fall]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Flores]]></surname>
<given-names><![CDATA[A.N.]]></given-names>
</name>
<name>
<surname><![CDATA[Espinosa]]></surname>
<given-names><![CDATA[M.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Vázquez]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Loaiza]]></surname>
<given-names><![CDATA[N.J.]]></given-names>
</name>
<name>
<surname><![CDATA[van Loosdrecht]]></surname>
<given-names><![CDATA[M.C.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Hooijmans]]></surname>
<given-names><![CDATA[C.M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Divergence between respirometry and physicochemical methods in the fractionation of the chemical oxygen demand in municipal wastewater]]></article-title>
<source><![CDATA[Water Environ. Res.]]></source>
<year>2011</year>
<volume>83</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>162-72</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Fall]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Millán]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Bâ]]></surname>
<given-names><![CDATA[K.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Gallego]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[García]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Díaz]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Solís]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[COD fractionation and biological treatability of mixed industrial wastewaters]]></article-title>
<source><![CDATA[J. Environ. Manage.]]></source>
<year>2012</year>
<volume>113</volume>
<page-range>71-7</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gujer]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Henze]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Mino]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Matsuo]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Wentzel]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Marais]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The activated sludge model No. 2: Biological phosphorus removal]]></article-title>
<source><![CDATA[Water Sci. Technol.]]></source>
<year>1995</year>
<volume>31</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>1-11</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Han]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Hao]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Urase]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Yew-Hoong]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A critical review on characterization strategies of organic matter for wastewater and water treatment process]]></article-title>
<source><![CDATA[Bioresource Technol.]]></source>
<year>2015</year>
<volume>193</volume>
<page-range>523-33</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="book">
<collab>Hydromantis</collab>
<source><![CDATA[Software GPS-X]]></source>
<year>2014</year>
<publisher-name><![CDATA[Environmental Software Solutions, INC. Applications]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Karahan]]></surname>
<given-names><![CDATA[Ö.]]></given-names>
</name>
<name>
<surname><![CDATA[Dogruel]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Dulekgurgen]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Orhon]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[COD fractionation of tannery wastewaters. Particle size distribution, biodegradability and modeling]]></article-title>
<source><![CDATA[Water Res.]]></source>
<year>2008</year>
<volume>42</volume>
<page-range>1083-92</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tchobanoglous]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Burton]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Stensel]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<source><![CDATA[Wastewater engineering, treatment and reuse]]></source>
<year>2003</year>
<page-range>1819</page-range><publisher-loc><![CDATA[Nueva York, EUA ]]></publisher-loc>
<publisher-name><![CDATA[Fourth edition. Mc.Graw Hill, Inc.]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<collab>SEMARNAT</collab>
<article-title xml:lang=""><![CDATA[Norma Oficial Mexicana NOM-001-SEMARNAT-1996. Límites máximos permisibles de contaminantes en las descargas de aguas residuales en aguas y bienes nacionales]]></article-title>
<source><![CDATA[Secretaría de Medio Ambiente y Recursos Naturales. Diario Oficial de la Federación, 23 de abril de 2003]]></source>
<year>1996</year>
</nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pratyush]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Saroj]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Arun]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evaluation of poultry viscera as potential fish feed ingredient, compared to fishmeal]]></article-title>
<source><![CDATA[Int. J. Current Res.]]></source>
<year>2014</year>
<volume>6</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>5241-3</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Radjenovi&#263;]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Mato&#353;i&#263;]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Mijatovi&#263;]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Petrovi&#263;]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Barceló]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Membrane bioreactor (MBR) as an advanced wastewater treatment technology]]></article-title>
<source><![CDATA[Environ. Chem.]]></source>
<year>2008</year>
<volume>5</volume>
<page-range>37-101</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Shaw]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Langergraber]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Reiger]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Winkler]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Gillot]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Ohtsuki]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
</person-group>
<source><![CDATA[Guidelines for using activated sludge models]]></source>
<year>2012</year>
<page-range>269</page-range><publisher-name><![CDATA[First edition. IWA Publishing]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Van Loosdrecht]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[López]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Meijer]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Hooijmans]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Brdjanovic]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Twenty-five years of ASM1: past, present and future of wastewater treatment modelling]]></article-title>
<source><![CDATA[J. Hydroinform.]]></source>
<year>2015</year>
<volume>17</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>697-718</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Van Loosdrecht]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Nielsen]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[López]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Brdjanovic]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<source><![CDATA[Experimental methods in wastewater treatment]]></source>
<year>2016</year>
<page-range>319</page-range><publisher-loc><![CDATA[Londres, Inglaterra ]]></publisher-loc>
<publisher-name><![CDATA[First edition. IWA publishing]]></publisher-name>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
