<?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>S0188-49992016000100047</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Remoción de mercurio por Phragmites australis empleada como barrera biológica en humedales artificiales inoculados con cepas tolerantes a metales pesados]]></article-title>
<article-title xml:lang="en"><![CDATA[Removal of mercury by Phragmites australis used as biological barrier in constructed wetlans inoculated with heavy metal-tolerant strains]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Amabilis-Sosa]]></surname>
<given-names><![CDATA[Leonel Ernesto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Siebe]]></surname>
<given-names><![CDATA[Christina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Moeller-Chávez]]></surname>
<given-names><![CDATA[Gabriela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Durán-Domínguez-de-Bazúa]]></surname>
<given-names><![CDATA[María del Carmen]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidad Nacional Autónoma de México Facultad de Química ]]></institution>
<addr-line><![CDATA[México D.F.]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="A02">
<institution><![CDATA[,Universidad Nacional Autónoma de México Instituto de Geología ]]></institution>
<addr-line><![CDATA[México ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="A03">
<institution><![CDATA[,Universidad Politécnica del Estado de Morelos  ]]></institution>
<addr-line><![CDATA[Jiutepec Morelos]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2016</year>
</pub-date>
<volume>32</volume>
<numero>1</numero>
<fpage>47</fpage>
<lpage>53</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0188-49992016000100047&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0188-49992016000100047&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0188-49992016000100047&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: En la presente investigación se evaluó la acumulación y distribución de mercurio en carrizo (Phragmites australis) usado como barrera biológica en humedales artificiales (HA) durante el tratamiento de agua residual. Se construyeron seis HA sembrados con carrizos, de los cuales tres fueron inoculados con bacterias tolerantes a metales pesados y los otros sin inoculación. También fueron construidos otros tres sistemas sin plantas ni inoculación, que fungieron como control. El agua de alimentación fue residual sintética con 0.11 mg/L de mercurio, valor establecido en estudios previos y reportado para efluentes de industrias relacionadas con el uso del metal. Después de 304 días de operación, los sistemas con carrizo y bacterias metalotolerantes, removieron el 73 % del mercurio total. Con valores similares, los sistemas con la vegetación pero sin las bacterias tolerantes, removieron 66 % del metal. En ambos sistemas el mercurio fue transferido, en su mayoría, a la atmósfera por la acumulación, translocación y transpiración que exhibe el carrizo. Por otra parte, los sistemas usados como testigos removieron el 33 % del mercurio total y fueron los que transfirieron la menor cantidad del metal hacia la atmósfera. Los resultados obtenidos en este estudio aportan información básica para ampliar el conocimiento sobre la factibilidad técnica de utilizar HA para el tratamiento de aguas residuales con contenido de mercurio.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: In this study, accumulation and distribution of mercury in common reed (Phragmites australis) as a biological barrier in constructed wetlands (CW) were assessed during wastewater treatment. Six CW, planted with common reed, were built, three of them were inoculated with heavy metal-tolerant strains and the otherthree were non-inoculated. Also three systems unplanted and non-inoculated were built as control. The feeding water was synthetic wastewater with 0.11 mg/L of mercury, value established in previous studies and reported for effluents of industries related to the use of this metal. After 304 operation days, systems with common reed and metal-tolerant bacteria were able to remove 73 % of total mercury. With similar values, systems with vegetation but without metal-tolerant bacteria, removed 66 % of it. In both systems, mercury was transferred, mostly, to atmosphere due to accumulation, translocation and transpiration exhibited by reed. Meanwhile, systems used as control, removed 52 % of total mercury and transferred the lowest amount of metal to the atmosphere. The results obtained from this study give important basic data to expand knowledge about the technical feasibility of using CW to treat wastewaters containing mercury.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[biorremediación de mercurio]]></kwd>
<kwd lng="es"><![CDATA[bacterias metalotolerantes]]></kwd>
<kwd lng="es"><![CDATA[evapotranspiración de mercurio]]></kwd>
<kwd lng="en"><![CDATA[mercury bioremediation]]></kwd>
<kwd lng="en"><![CDATA[metalotolerant bacteria]]></kwd>
<kwd lng="en"><![CDATA[mercury evapotranspiration]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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