<?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>2518-4431</journal-id>
<journal-title><![CDATA[Investigación & Desarrollo]]></journal-title>
<abbrev-journal-title><![CDATA[Inv. y Des.]]></abbrev-journal-title>
<issn>2518-4431</issn>
<publisher>
<publisher-name><![CDATA[UNIVERSIDAD PRIVADA BOLIVIANA]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2518-44312022000100005</article-id>
<article-id pub-id-type="doi">10.23881/idupbo.022.1-1i</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[REMOCIÓN DE LA MATERIA ORGÁNICA DE AGUAS RESIDUALES DE LA INDUSTRIA TEXTIL MEDIANTE LA APLICACIÓN DE FERRATO DE POTASIO SINTETIZADO]]></article-title>
<article-title xml:lang="en"><![CDATA[REMOVAL OF ORGANIC MATTER FROM TEXTILE INDUSTRY WASTEWATER BY SYNTHESIZED POTASSIUM FERRATE]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Escalera]]></surname>
<given-names><![CDATA[Ramiro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hosse Pastor]]></surname>
<given-names><![CDATA[Uli Nicol]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castillo]]></surname>
<given-names><![CDATA[Sara]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Privada Boliviana  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Bolivia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2022</year>
</pub-date>
<volume>22</volume>
<numero>1</numero>
<fpage>5</fpage>
<lpage>13</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.bo/scielo.php?script=sci_arttext&amp;pid=S2518-44312022000100005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.bo/scielo.php?script=sci_abstract&amp;pid=S2518-44312022000100005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.bo/scielo.php?script=sci_pdf&amp;pid=S2518-44312022000100005&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Se investigó el uso de ferrato de potasio sintetizado como opción de tratamiento para la remoción de la materia orgánica (DQO) y del color contenidos en aguas residuales de una planta teñidora y lavadora de telas. Los tintes orgánicos industriales usados en el proceso son: Reactive blue 19, Allura red y Reactive black 5. Como resultado de un diseño experimental a temperatura ambiente, se encontró una dosis óptima de ion ferrato de aproximadamente 90 mg-FeO4 2-/l a un pH = 7, condiciones que generaron una eficiencia de remoción de DQO disuelto de 82% La eficiencia de remoción de color fue mayor al 80% a pH = 7 y una dosis de ion ferrato de 120 mg/l. El proceso de coagulación-floculación tarda 21 min i.e. 1 min de agitación rápida y 20 min de agitación lenta y controlada a una velocidad de corte de 33 s-1. La velocidad de sedimentación crítica de los flóculos formados fue de 3,5 cm/min en las condiciones óptimas. Con esta velocidad se puede diseñar sedimentadores de una carga superficial de 50,4 m3/m2/d que es superior a los valores usados comúnmente en el diseño de sedimentadores en las plantas de clarificación de aguas destinadas al consumo humano. En conclusión, el estudio demuestra que el uso del ferrato de potasio como coagulante y oxidante, es efectivo para la remoción de la materia orgánica y la decoloración de aguas residuales provenientes de la industria textil.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT This study investigated the use of synthesized potassium ferrate as a treatment option for the removal of organic matter (COD) and color contained in wastewater from a fabric dyeing and washing plant. The industrial organic dyes used in the process are: Reactive blue 19, Allura red and Reactive black 5. As a result of an experimental design at room temperature, an optimal dose of ferrate ion of approximately 90 mg-FeO4 2-/l was found at a pH = 7, conditions that generated a removal efficiency of soluble COD of 82%. The color removal efficiency was greater than 80% at pH = 7 and a ferrate ion dose of 120 mg/l. The coagulation-flocculation process takes 21 min; i.e. 1 min of rapid agitation and 20 min of slow and controlled agitation at a shear rate of 33 s-1. The critical sedimentation velocity of the formed flocs was 3.5 cm/min under optimal conditions. With this velocity, settlers with a surface load of 50.4 m3/m2/d can be designed, which is higher than the values &#8203;&#8203;commonly used in the design of settlers in water clarification plants intended for human consumption. In conclusion, the study shows that the use of potassium ferrate as a coagulant and oxidant is effective for the removal of organic matter and the discoloration of wastewater from the textile industry.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Ferrato de Potasio]]></kwd>
<kwd lng="es"><![CDATA[Tratamiento de Aguas Residuales de la Industria Textil]]></kwd>
<kwd lng="es"><![CDATA[Remoción de DQO]]></kwd>
<kwd lng="es"><![CDATA[Decoloración]]></kwd>
<kwd lng="es"><![CDATA[Velocidad de Sedimentación]]></kwd>
<kwd lng="en"><![CDATA[Potassium Ferrate]]></kwd>
<kwd lng="en"><![CDATA[Textile Industry Wastewater Treatment]]></kwd>
<kwd lng="en"><![CDATA[COD Removal]]></kwd>
<kwd lng="en"><![CDATA[Discoloration]]></kwd>
<kwd lng="en"><![CDATA[Settling Velocity]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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