<?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>S0188-49992017000400591</article-id>
<article-id pub-id-type="doi">10.20937/rica.2017.33.04.04</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[ADSORPTION OF CHROMIUM FROM STEEL PLATING WASTEWATER USING BLAST FURNACE DUST]]></article-title>
<article-title xml:lang="es"><![CDATA[ADSORCIÓN DE CROMO DE AGUAS RESIDUALES DEL CROMADO USANDO POLVO DE ALTO HORNO]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Carrillo Pedroza]]></surname>
<given-names><![CDATA[Francisco Raúl]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Soria Aguilar]]></surname>
<given-names><![CDATA[María de Jesús]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez Castillo]]></surname>
<given-names><![CDATA[Marco Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez Luévanos]]></surname>
<given-names><![CDATA[Antonia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Picazo Rodríguez]]></surname>
<given-names><![CDATA[Nallely Guadalupe]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Coahuila Facultad de Metalurgia ]]></institution>
<addr-line><![CDATA[Monclova Coahuila]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma de San Luis Potosí Facultad de Ciencias Químicas ]]></institution>
<addr-line><![CDATA[San Luis Potosí San Luis Potosí]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Autónoma de Coahuila Facultad de Ciencias Químicas ]]></institution>
<addr-line><![CDATA[Saltillo Coahuila]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2017</year>
</pub-date>
<volume>33</volume>
<numero>4</numero>
<fpage>591</fpage>
<lpage>603</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0188-49992017000400591&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0188-49992017000400591&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0188-49992017000400591&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT In this work, blast furnace dust (BFD) obtained from a steel dust collector is used as low-cost adsorbent material for chromium removal from steel industrial plating wastewater. This study shows that BFD present physical and chemical characteristics, such as chemical composition, magnetic properties and particle size, suitable for application in adsorption of ions such as chromium. Different kinetics approaches and isotherms models were evaluated to describe the adsorption process. According to results, chromium adsorption follows intra-particle diffusion with adsorption in active sites. Freundlich and Dubinin-Radushkevich isotherms parameter and low free energy obtained from isotherms studies indicate that chromium adsorption occurs by of a cooperative physical adsorption process, due to the electrostatic attraction between protonated FeOH+ and HCrO4 -. Although the results indicate that BFD adsorb partially the chromium, it could represent an attractive low-cost absorbent option as complementary method for removal of chromium in the steel plating wastewater treatment.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN En este trabajo se utilizó polvo de alto horno (BFD, por sus siglas en inglés) obtenido de un colector de polvo de acería, como material adsorbente de bajo costo para la remoción de cromo de aguas residuales de la industria del cromado. Este estudio muestra que el BFD tiene características físicas y químicas, tales como su composición química, propiedades magnéticas y tamaño de partícula, que pudieran aplicarse en la adsorción de iones metálicos como el cromo. Para describir el proceso de adsorción de cromo usando BFD fueron evaluados diferentes modelos cinéticos y de isotermas de adsorción. De acuerdo con los resultados, la adsorción de cromo ocurre mediante difusión intrapartícula y adsorción en sitios activos. Los valores de energía libre y de los parámetros obtenidos de las isotermas de Freundlich y Dubinin-Radushkevich indican que la adsorción del cromo se lleva a cabo por un proceso de adsorción física cooperativa de atracción electrostática entre el ion protonado FeOH+ y el HCrO4 -. Aunque los resultados indican que el cromo es adsorbido parcialmente por el BFD, el hecho de que éste sea un material de bajo costo (por ser un residuo de acería) puede representar una opción atractiva complementaria en la remoción de cromo en aguas residuales de la industria del cromado.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[removal]]></kwd>
<kwd lng="en"><![CDATA[iron oxides]]></kwd>
<kwd lng="en"><![CDATA[kinetics]]></kwd>
<kwd lng="en"><![CDATA[low-cost]]></kwd>
<kwd lng="es"><![CDATA[remoción]]></kwd>
<kwd lng="es"><![CDATA[óxidos de hierro]]></kwd>
<kwd lng="es"><![CDATA[cinética]]></kwd>
<kwd lng="es"><![CDATA[bajo costo]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Aharoni]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Ungarish]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Kinetics of activated chemisorptions. Part 2 Theoretical models]]></article-title>
<source><![CDATA[J. Chem. Soc. Faraday Trans.]]></source>
<year>1977</year>
<volume>1</volume>
<numero>73</numero>
<issue>73</issue>
<page-range>456-64</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ahmed]]></surname>
<given-names><![CDATA[M. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Ali]]></surname>
<given-names><![CDATA[S.M.]]></given-names>
</name>
<name>
<surname><![CDATA[El-Deka]]></surname>
<given-names><![CDATA[S. I.]]></given-names>
</name>
<name>
<surname><![CDATA[Galal]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Magnetite-hematite nanoparticles prepared by green methods for heavy metal ions removal from water]]></article-title>
<source><![CDATA[Mater. Sci. Eng. B.]]></source>
<year>2013</year>
<volume>178</volume>
<numero>10</numero>
<issue>10</issue>
<page-range>744-51</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Babel]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Kurniawan]]></surname>
<given-names><![CDATA[T. A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Low-cost adsorbents for heavy metals uptake from contaminated water: a review]]></article-title>
<source><![CDATA[J. Hazard. Mater.]]></source>
<year>2003</year>
<volume>97</volume>
<numero>1-3</numero>
<issue>1-3</issue>
<page-range>219-43</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Babu]]></surname>
<given-names><![CDATA[B. V.]]></given-names>
</name>
<name>
<surname><![CDATA[Gupta]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Removal of Cr(VI) from wastewater using activated tamarind seeds as an adsorbent]]></article-title>
<source><![CDATA[J. Environ. Eng. Sci.]]></source>
<year>2008</year>
<volume>7</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>553-7</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Babu]]></surname>
<given-names><![CDATA[B. V.]]></given-names>
</name>
<name>
<surname><![CDATA[Gupta]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Adsorption of Cr(VI) using activated neem leaves as an adsorbent: kinetic studies]]></article-title>
<source><![CDATA[Adsorption]]></source>
<year>2008</year>
<volume>14</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>85-92</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Badruddoza]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Shawon]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[Rahman]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Hao]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Hidajat]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Shahab]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Ionically modified magnetic nanomaterials for arsenic and chromium removal from water]]></article-title>
<source><![CDATA[Chem. Eng. J.]]></source>
<year>2013</year>
<volume>225</volume>
<page-range>607-15</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bansal]]></surname>
<given-names><![CDATA[M. D.]]></given-names>
</name>
<name>
<surname><![CDATA[Singh]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Garg]]></surname>
<given-names><![CDATA[V. K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A comparative study for the removal of hexavalent chromium from aqueous solution by agriculture wastes carbons]]></article-title>
<source><![CDATA[J. Hazard. Mater.]]></source>
<year>2009</year>
<volume>171</volume>
<numero>1-3</numero>
<issue>1-3</issue>
<page-range>83-92</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Barakat]]></surname>
<given-names><![CDATA[M. A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[New trends in removing heavy metals from industrial wastewater, Arabian]]></article-title>
<source><![CDATA[J. Chem.]]></source>
<year>2011</year>
<volume>4</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>361-77</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bhattacharya]]></surname>
<given-names><![CDATA[A. K.]]></given-names>
</name>
<name>
<surname><![CDATA[Naiya]]></surname>
<given-names><![CDATA[T. K.]]></given-names>
</name>
<name>
<surname><![CDATA[Mandal]]></surname>
<given-names><![CDATA[S.N.]]></given-names>
</name>
<name>
<surname><![CDATA[Dasa]]></surname>
<given-names><![CDATA[S. K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Adsorption, kinetics and equilibrium studies on removal of Cr(VI) from aqueous solutions using different low-cost adsorbents]]></article-title>
<source><![CDATA[Chem. Eng J.]]></source>
<year>2008</year>
<volume>137</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>529-41</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Carrillo-Pedroza]]></surname>
<given-names><![CDATA[F. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Soria-Aguilar]]></surname>
<given-names><![CDATA[M. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Martínez-Luevanos]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Narvaez-García]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Blast furnace (BF) residues for arsenic removal from mining-contaminated groundwater]]></article-title>
<source><![CDATA[Environ. Techol.]]></source>
<year>2014</year>
<volume>35</volume>
<numero>23</numero>
<issue>23</issue>
<page-range>2895-902</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chowdhury]]></surname>
<given-names><![CDATA[S. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Yanful]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Pratt]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Chemical states in XPS and Raman analysis during removal of Cr(VI) from contaminated water by mixed maghemite-magnetite nanoparticles]]></article-title>
<source><![CDATA[J. Hazard. Mater.]]></source>
<year>2012</year>
<volume>235-236</volume>
<page-range>246-56</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dakiky]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Khamis]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Manassra]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Mer&#8217;eb]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Selective adsorption of Chromium(VI) in industrial waste water using low cost abundantly available adsorbents]]></article-title>
<source><![CDATA[Adv. Environ. Res.]]></source>
<year>2002</year>
<volume>6</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>533-40</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Demirbas]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Kobya]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Konukman]]></surname>
<given-names><![CDATA[A. E. S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Error analysis of equilibrium studies for the almond shell activated carbon adsorption of Cr(VI) from aqueous solutions]]></article-title>
<source><![CDATA[J. Hazard. Mater.]]></source>
<year>2008</year>
<volume>154</volume>
<numero>1-3</numero>
<issue>1-3</issue>
<page-range>787-94</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[De Boer]]></surname>
<given-names><![CDATA[J. H.]]></given-names>
</name>
</person-group>
<source><![CDATA[Dynamical character of adsorption]]></source>
<year>1968</year>
<edition>2nd</edition>
<page-range>256</page-range><publisher-loc><![CDATA[London, UK ]]></publisher-loc>
<publisher-name><![CDATA[Oxford University Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dubinin]]></surname>
<given-names><![CDATA[M. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Radushkevich]]></surname>
<given-names><![CDATA[L.V.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Equation of the characteristic curve of activated charcoal]]></article-title>
<source><![CDATA[Proc. Acad. Sci. Phys. Chem. Sec. USSR55]]></source>
<year>1947</year>
<volume>331-333</volume>
<page-range>875-90</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dubinin]]></surname>
<given-names><![CDATA[M. M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The potential theory of adsorption of gases and vapors for adsorbents with energetically non-uniform surface]]></article-title>
<source><![CDATA[Chem. Rev.]]></source>
<year>1960</year>
<volume>60</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>235-66</page-range></nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Foo]]></surname>
<given-names><![CDATA[K. Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Hameed]]></surname>
<given-names><![CDATA[B. H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Insights into the modeling of adsorption isotherm systems]]></article-title>
<source><![CDATA[Chem. Eng. J.]]></source>
<year>2010</year>
<volume>156</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>2-10</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Freundlich]]></surname>
<given-names><![CDATA[H. M. F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Over the adsorption in solution]]></article-title>
<source><![CDATA[J. Phys. Chem.]]></source>
<year>1906</year>
<volume>57</volume>
<page-range>385-471</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ghosh]]></surname>
<given-names><![CDATA[P. K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Hexavalent chromium [Cr(VI)] removal by acid modified waste activated carbons]]></article-title>
<source><![CDATA[J. Hazard. Mater.]]></source>
<year>2009</year>
<volume>171</volume>
<numero>1-3</numero>
<issue>1-3</issue>
<page-range>116-22</page-range></nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Grosvenor]]></surname>
<given-names><![CDATA[A. P.]]></given-names>
</name>
<name>
<surname><![CDATA[Kobe]]></surname>
<given-names><![CDATA[B. A.]]></given-names>
</name>
<name>
<surname><![CDATA[McIntyr]]></surname>
<given-names><![CDATA[N. S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Examination of the oxidation of iron by oxygen using X-ray photoelectron spectroscopy and QUASESTM]]></article-title>
<source><![CDATA[Surface Sci.]]></source>
<year>2004</year>
<volume>565</volume>
<numero>2-3</numero>
<issue>2-3</issue>
<page-range>151-62</page-range></nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Guhab]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Chaudhuri]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Removal of As(III) from groundwater by low cost materials]]></article-title>
<source><![CDATA[Asian Environ.]]></source>
<year>1990</year>
<volume>12</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>42-50</page-range></nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gupta]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Babu]]></surname>
<given-names><![CDATA[B.V.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Removal of toxic metal Cr(VI) from aqueous solutions using sawdust as adsorbent: Equilibrium, kinetics and regeneration studies]]></article-title>
<source><![CDATA[Chem. Eng J.]]></source>
<year>2009</year>
<volume>150</volume>
<numero>2-3</numero>
<issue>2-3</issue>
<page-range>352-65</page-range></nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Haghseresht]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Lu]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Adsorption characteristics of phenolic compounds onto coal-reject-derived adsorbents]]></article-title>
<source><![CDATA[Energy Fuels]]></source>
<year>1998</year>
<volume>12</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>1100-7</page-range></nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ho]]></surname>
<given-names><![CDATA[Y.S.]]></given-names>
</name>
<name>
<surname><![CDATA[McKay]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Pseudo-second order model for sorption processes]]></article-title>
<source><![CDATA[Process Biochem.]]></source>
<year>1999</year>
<volume>34</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>451-65</page-range></nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hobson]]></surname>
<given-names><![CDATA[J. P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Physical adsorption isotherms extending from ultra-high vacuum to vapor pressure]]></article-title>
<source><![CDATA[J. Phys. Chem.]]></source>
<year>1969</year>
<volume>73</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>2720-7</page-range></nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hu]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Lo]]></surname>
<given-names><![CDATA[I. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Chen]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Removal of Cr(VI) by magnetite]]></article-title>
<source><![CDATA[Water Sci. Technol.]]></source>
<year>2004</year>
<volume>50</volume>
<numero>12</numero>
<issue>12</issue>
<page-range>139-46</page-range></nlm-citation>
</ref>
<ref id="B27">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hutson]]></surname>
<given-names><![CDATA[N. D.]]></given-names>
</name>
<name>
<surname><![CDATA[Yang]]></surname>
<given-names><![CDATA[R. T.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Theoretcal basis for the Dubinin-Radushkevith (D-R) adsorption isotherm equation]]></article-title>
<source><![CDATA[Adsorption]]></source>
<year>1997</year>
<volume>3</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>189-95</page-range></nlm-citation>
</ref>
<ref id="B28">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hsu]]></surname>
<given-names><![CDATA[N. H.]]></given-names>
</name>
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[S. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Liao]]></surname>
<given-names><![CDATA[Y. H.]]></given-names>
</name>
<name>
<surname><![CDATA[Huang]]></surname>
<given-names><![CDATA[S. T.]]></given-names>
</name>
<name>
<surname><![CDATA[Tzou]]></surname>
<given-names><![CDATA[Y. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Huang]]></surname>
<given-names><![CDATA[Y. M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Removal of hexavalent chromium from acidic aqueous solutions using rice straw-derived carbon]]></article-title>
<source><![CDATA[J. Hazard. Mater.]]></source>
<year>2009</year>
<volume>171</volume>
<numero>1-3</numero>
<issue>1-3</issue>
<page-range>1066-70</page-range></nlm-citation>
</ref>
<ref id="B29">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Inbaraj]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Chen]]></surname>
<given-names><![CDATA[B.H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Dye adsorption characteristics of magnetite nanoparticles coated with a biopolymer poly(c-glutamic acid)]]></article-title>
<source><![CDATA[Biores. Technol.]]></source>
<year>2011</year>
<volume>102</volume>
<numero>19</numero>
<issue>19</issue>
<page-range>8868-76</page-range></nlm-citation>
</ref>
<ref id="B30">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kannan]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<source><![CDATA[Fundamentals of environmental pollution]]></source>
<year>1995</year>
<page-range>366</page-range><publisher-loc><![CDATA[New Delhi, India ]]></publisher-loc>
<publisher-name><![CDATA[S. Chand and Co. Ltd]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B31">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Karadag]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Koc]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Turan]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Ozturk]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A comparative study of linear and nonlinear regression analysis for ammonium exchange by clinoptilolite zeolite]]></article-title>
<source><![CDATA[J. Hazard. Mater.]]></source>
<year>2007</year>
<volume>144</volume>
<numero>1-2</numero>
<issue>1-2</issue>
<page-range>432-7</page-range></nlm-citation>
</ref>
<ref id="B32">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kumar]]></surname>
<given-names><![CDATA[K. V.]]></given-names>
</name>
<name>
<surname><![CDATA[Sivanesan]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Pseudo second order kinetics and pseudo isotherms for malachite green onto activated carbon: comparison of linear and nonlinear regression methods]]></article-title>
<source><![CDATA[J. Hazard. Mater.]]></source>
<year>2006</year>
<volume>136</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>721-6</page-range></nlm-citation>
</ref>
<ref id="B33">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kundu]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Gupta]]></surname>
<given-names><![CDATA[A. K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Arsenic adsorption onto iron oxide-coated cement (IOCC): regression analysis of equilibrium data with several isotherm models and their optimization]]></article-title>
<source><![CDATA[Chem. Eng. J.]]></source>
<year>2006</year>
<volume>122</volume>
<numero>1-2</numero>
<issue>1-2</issue>
<page-range>93-106</page-range></nlm-citation>
</ref>
<ref id="B34">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kurniawan]]></surname>
<given-names><![CDATA[T. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Chan]]></surname>
<given-names><![CDATA[G. Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Lo]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Babel]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Comparisons of low-cost adsorbents for treating wastewaters laden with heavy metals]]></article-title>
<source><![CDATA[Sc. Total Env.]]></source>
<year>2006</year>
<volume>366</volume>
<numero>2-3</numero>
<issue>2-3</issue>
<page-range>409-26</page-range></nlm-citation>
</ref>
<ref id="B35">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Langmuir]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The constitution and fundamental properties of solids and liquids]]></article-title>
<source><![CDATA[J. Am. Chem. Soc.]]></source>
<year>1916</year>
<volume>38</volume>
<numero>11</numero>
<issue>11</issue>
<page-range>2221-95</page-range></nlm-citation>
</ref>
<ref id="B36">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Fan]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Sun]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Qiu]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
<name>
<surname><![CDATA[Duan]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Luo]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Adsorbent for chromium removal based on graphene oxide functionalized with magnetic cyclodextrin-chitosan]]></article-title>
<source><![CDATA[Coll. Surf. B Biointerf.]]></source>
<year>2013</year>
<volume>107</volume>
<page-range>76-83</page-range></nlm-citation>
</ref>
<ref id="B37">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[López-Delgado]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Pérez]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[López]]></surname>
<given-names><![CDATA[F. A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Sorption of heavy metals on blast furnace sludge]]></article-title>
<source><![CDATA[Water Res.]]></source>
<year>1998</year>
<volume>32</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>989-96</page-range></nlm-citation>
</ref>
<ref id="B38">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mamindy-Pajany]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Hurel]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Marmier]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Roméo]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Arsenic (V) adsorption from aqueous solution onto goethite, hematite, magnetite and zero-valent iron: Effects of pH, concentration and reversibility]]></article-title>
<source><![CDATA[Desalination]]></source>
<year>2011</year>
<volume>281</volume>
<page-range>93-9</page-range></nlm-citation>
</ref>
<ref id="B39">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mane]]></surname>
<given-names><![CDATA[V. S.]]></given-names>
</name>
<name>
<surname><![CDATA[Mall]]></surname>
<given-names><![CDATA[I. D.]]></given-names>
</name>
<name>
<surname><![CDATA[Srivastava]]></surname>
<given-names><![CDATA[V. C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Kinetic and equilibrium isotherm studies for the adsorptive removal of Brilliant Green dye from aqueous solution by rice husk ash]]></article-title>
<source><![CDATA[J Environ. Manage.]]></source>
<year>2007</year>
<volume>84</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>390-400</page-range></nlm-citation>
</ref>
<ref id="B40">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mohan]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Singh]]></surname>
<given-names><![CDATA[K. P.]]></given-names>
</name>
<name>
<surname><![CDATA[Singh]]></surname>
<given-names><![CDATA[V. K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Trivalent chromium removal from wastewater using low cost activated carbon derived from agricultural waste material and activated carbon fabric cloth]]></article-title>
<source><![CDATA[J. Hazard. Mater.]]></source>
<year>2006</year>
<volume>135</volume>
<numero>1-3</numero>
<issue>1-3</issue>
<page-range>280-95</page-range></nlm-citation>
</ref>
<ref id="B41">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nethaji]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Sivasamy]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Mandal]]></surname>
<given-names><![CDATA[A. B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Preparation and characterization of corn cob activated carbon coated with nano-sized magnetite particles for the removal of Cr(VI)]]></article-title>
<source><![CDATA[Biores. Technol.]]></source>
<year>2013</year>
<volume>134</volume>
<page-range>94-100</page-range></nlm-citation>
</ref>
<ref id="B42">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ng]]></surname>
<given-names><![CDATA[J. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Cheung]]></surname>
<given-names><![CDATA[W. H.]]></given-names>
</name>
<name>
<surname><![CDATA[McKay]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Equilibrium studies for the sorption of lead from effluents using chitosan]]></article-title>
<source><![CDATA[Chemosphere]]></source>
<year>2003</year>
<volume>52</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>1021-30</page-range></nlm-citation>
</ref>
<ref id="B43">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nriagu]]></surname>
<given-names><![CDATA[J. O.]]></given-names>
</name>
<name>
<surname><![CDATA[Pacyna]]></surname>
<given-names><![CDATA[J. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Milford]]></surname>
<given-names><![CDATA[J. B.]]></given-names>
</name>
<name>
<surname><![CDATA[Davidson]]></surname>
<given-names><![CDATA[C.I.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Distribution and characteristic features of chromium in the atmosphere]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Nriagu]]></surname>
<given-names><![CDATA[J. O.]]></given-names>
</name>
<name>
<surname><![CDATA[Nieboer]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<source><![CDATA[Chromium in natural and human environments]]></source>
<year>1988</year>
<page-range>125-73</page-range><publisher-loc><![CDATA[New York, EUA ]]></publisher-loc>
<publisher-name><![CDATA[John Wiley and Sons]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B44">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Oladoja]]></surname>
<given-names><![CDATA[N. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Ololade]]></surname>
<given-names><![CDATA[I. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Alimi]]></surname>
<given-names><![CDATA[O.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Akinnifesi]]></surname>
<given-names><![CDATA[T. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Olaremu]]></surname>
<given-names><![CDATA[G.A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Iron incorporated rice husk silica as a sorbent for hexavalent chromium attenuation in aqueous system]]></article-title>
<source><![CDATA[Chem. Eng. Res. Des.]]></source>
<year>2013</year>
<volume>91</volume>
<numero>12</numero>
<issue>12</issue>
<page-range>2691-702</page-range></nlm-citation>
</ref>
<ref id="B45">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Petrusevski]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Boere]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Shahidullah]]></surname>
<given-names><![CDATA[S. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Sharma]]></surname>
<given-names><![CDATA[S. K.]]></given-names>
</name>
<name>
<surname><![CDATA[Schippers]]></surname>
<given-names><![CDATA[J. C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Adsorbent-based point-of-use system for arsenic removal in rural areas]]></article-title>
<source><![CDATA[J. of Water SRT-Aqua]]></source>
<year>2002</year>
<volume>51</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>135-44</page-range></nlm-citation>
</ref>
<ref id="B46">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rocher]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
<name>
<surname><![CDATA[Siaugue]]></surname>
<given-names><![CDATA[J. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Cabuil]]></surname>
<given-names><![CDATA[V. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Bee]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Removal of organic dyes by magnetic alginate beads]]></article-title>
<source><![CDATA[Water Res.]]></source>
<year>2004</year>
<volume>42</volume>
<numero>4-5</numero>
<issue>4-5</issue>
<page-range>1290-8</page-range></nlm-citation>
</ref>
<ref id="B47">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Roine]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Outokumpu HSC Chemistry® for Windows. Chemical reaction and equilibrium software with extensive thermochemical database]]></source>
<year>2002</year>
</nlm-citation>
</ref>
<ref id="B48">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Siboni]]></surname>
<given-names><![CDATA[M. S.]]></given-names>
</name>
<name>
<surname><![CDATA[Samarghandi]]></surname>
<given-names><![CDATA[M. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Azizian]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Kim]]></surname>
<given-names><![CDATA[W. G.]]></given-names>
</name>
<name>
<surname><![CDATA[Lee]]></surname>
<given-names><![CDATA[S. M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The removal of hexavalent chromium from aqueous solutions using modified holly sawdust: equilibrium and kinetics studies]]></article-title>
<source><![CDATA[Environ. Eng. Res.]]></source>
<year>2011</year>
<volume>16</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>55-60</page-range></nlm-citation>
</ref>
<ref id="B49">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Shipley]]></surname>
<given-names><![CDATA[H. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Yean]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Kan]]></surname>
<given-names><![CDATA[A. T.]]></given-names>
</name>
<name>
<surname><![CDATA[Tomson]]></surname>
<given-names><![CDATA[M. B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Adsorption of arsenic to magnetite nanoparticles]]></article-title>
<source><![CDATA[Environ. Tox. and Chem.]]></source>
<year>2009</year>
<volume>28</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>509-15</page-range></nlm-citation>
</ref>
<ref id="B50">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tuutijarvi]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Sillanpa]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Lu]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Chen]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[As(V) adsorption on maghemite nanoparticles]]></article-title>
<source><![CDATA[J. Hazard Mater]]></source>
<year>2009</year>
<volume>166</volume>
<numero>2-3</numero>
<issue>2-3</issue>
<page-range>1415-20</page-range></nlm-citation>
</ref>
<ref id="B51">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tempkin]]></surname>
<given-names><![CDATA[M. I.]]></given-names>
</name>
<name>
<surname><![CDATA[Pyzhev]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Kinetics of ammonia synthesis on promoted iron catalyst]]></article-title>
<source><![CDATA[Acta Phys. Chim.]]></source>
<year>1940</year>
<volume>USSR 12</volume>
<page-range>327-56</page-range></nlm-citation>
</ref>
<ref id="B52">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Vijayaraghavan]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Padmesh]]></surname>
<given-names><![CDATA[T. V. N.]]></given-names>
</name>
<name>
<surname><![CDATA[Palanivelu]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Velan]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Biosorption of nickel(II) ions onto Sargassum wightii: application of two-parameter and three parameter isotherm models]]></article-title>
<source><![CDATA[J. Hazard. Mater.]]></source>
<year>2006</year>
<volume>133</volume>
<numero>1-3</numero>
<issue>1-3</issue>
<page-range>304-8</page-range></nlm-citation>
</ref>
<ref id="B53">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Vi&#353;ekruna]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Strkalj]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Marini&#263; Pajc]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The use of low cost adsorbents for purification wastewater]]></article-title>
<source><![CDATA[The Holistic Approach Environ.]]></source>
<year>2011</year>
<volume>1</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>29-37</page-range></nlm-citation>
</ref>
<ref id="B54">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Webber]]></surname>
<given-names><![CDATA[T. W.]]></given-names>
</name>
<name>
<surname><![CDATA[Chakkravorti]]></surname>
<given-names><![CDATA[R. K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Pore and solid diffusion models for fixed-bed adsorbers]]></article-title>
<source><![CDATA[AlChE J.]]></source>
<year>1974</year>
<volume>20</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>228-38</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
