<?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>2218-3620</journal-id>
<journal-title><![CDATA[Revista Universidad y Sociedad]]></journal-title>
<abbrev-journal-title><![CDATA[Universidad y Sociedad]]></abbrev-journal-title>
<issn>2218-3620</issn>
<publisher>
<publisher-name><![CDATA[Editorial "Universo Sur"]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2218-36202024000700109</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Biogas production from organic waste, a sustainable alternative for the environmental development]]></article-title>
<article-title xml:lang="es"><![CDATA[Producción de biogás a partir de residuos orgánicos, una alternativa sustentable para el desarrollo ambiental]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López-Velarde Santos]]></surname>
<given-names><![CDATA[Mónica]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez Morales]]></surname>
<given-names><![CDATA[José Alberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mendoza Burguete]]></surname>
<given-names><![CDATA[Yesenia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Querétaro  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2024</year>
</pub-date>
<volume>16</volume>
<fpage>109</fpage>
<lpage>118</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2218-36202024000700109&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2218-36202024000700109&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2218-36202024000700109&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Vinasses are the main organic waste from alcohol obtention with numerous toxic compounds for the environment. The discharge of untreated vinasses in water bodies or soils has significant environmental and social impacts. Anaerobic digestion is a method used for the treatment of organic wastes such as vinasses, and the simultaneous production of bioenergy and biomaterials. The use of biofilms in bioreactors favors biogas production, reducing the number of toxic components. In the present study, the use of a low-cost biofilm made of PET or polyethylene terephthalate was evaluated in a 6 L bioreactor digesting mezcal vinasses and cow manure. The production of biogas and methane was analyzed. The biofilm bioreactor generated 40 and 70 % more biogas and methane and lower hydrogen sulfide, in comparison to the control bioreactor. Organic acids did not accumulate in the bioreactor with biofilm, while the control bioreactor showed an accumulation of these acids. This work presents an alternative use of reusable and low-cost biofilms, improving the effectiveness of anaerobic digestion.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Las vinazas son el principal residuo orgánico de la obtención de alcohol, residuo que contiene numerosos compuestos tóxicos para el medio ambiente. La descarga de vinazas sin tratamiento previo en cuerpos de agua o suelos tiene importantes impactos ambientales y sociales. La digestión anaeróbica es un método utilizado para el tratamiento de residuos orgánicos como vinazas y la producción simultánea de bioenergía y biomateriales. El uso de biopelículas en biorreactores favorece la producción de biogás, reduciendo la cantidad de componentes tóxicos. En el presente estudio se evaluó el uso de una biopelícula de bajo costo hecha de PET o tereftalato de polietileno en un biorreactor de 6 L que digiere vinazas de mezcal y estiércol de vaca. Se analizó la producción de biogás y metano. El biorreactor con biopelícula generó entre un 40 y un 70 % más de biogás y metano, así como menos sulfuro de hidrógeno, en comparación con el biorreactor de control. Los ácidos orgánicos no se acumularon en el biorreactor con biopelícula, mientras que el biorreactor control mostró una acumulación de estos ácidos. Este trabajo presenta un uso alternativo de biopelículas reutilizables y de bajo costo, mejorando la efectividad de la digestión anaeróbica.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Biogas]]></kwd>
<kwd lng="en"><![CDATA[Methane]]></kwd>
<kwd lng="en"><![CDATA[Biofilm]]></kwd>
<kwd lng="en"><![CDATA[PET]]></kwd>
<kwd lng="en"><![CDATA[Contamination]]></kwd>
<kwd lng="es"><![CDATA[Biogas]]></kwd>
<kwd lng="es"><![CDATA[Metano]]></kwd>
<kwd lng="es"><![CDATA[Biopelícula]]></kwd>
<kwd lng="es"><![CDATA[PET]]></kwd>
</kwd-group>
</article-meta>
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