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  <front>
    <journal-meta>
      <journal-id journal-id-type="issn">2411-3336</journal-id>
      <journal-id journal-id-type="eissn">2541-9404</journal-id>
      <journal-title-group>
        <journal-title xml:lang="ru">Записки Горного института</journal-title>
        <journal-title xml:lang="en">Journal of Mining Institute</journal-title>
      </journal-title-group>
      <publisher>
        <publisher-name xml:lang="ru">Санкт-Петербургский горный университет императрицы Екатерины ΙΙ</publisher-name>
        <publisher-name xml:lang="en">Empress Catherine II Saint Petersburg Mining University</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="doi">10.31897/pmi.2019.1.47</article-id>
      <article-id custom-type="pmi" pub-id-type="custom">pmi-13175</article-id>
      <article-id pub-id-type="uri">https://pmi.spmi.ru/pmi/article/view/13175</article-id>
      <article-categories>
        <subj-group subj-group-type="section-heading" xml:lang="ru">
          <subject>Металлургия и обогащение</subject>
        </subj-group>
        <subj-group subj-group-type="section-heading" xml:lang="en">
          <subject>Metallurgy and concentration</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title xml:lang="en">Factors affecting bacterial and chemical processes of sulphide ores processing</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Факторы, влияющие на бактериально-химические процессы переработки сульфидных руд</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author" corresp="yes">
          <name name-style="eastern">
            <surname>Khainasova</surname>
            <given-names>T. S.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Хайнасова</surname>
              <given-names>Т. С.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Khainasova</surname>
              <given-names>T. S.</given-names>
            </name>
          </name-alternatives>
          <email>khainasova@yandex.ru</email>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <aff-alternatives id="aff1">
          <aff>
            <institution xml:lang="ru">Научно-исследовательский геотехнологический центр Дальневосточного отделения Российской академии наук (Петропавловск-Камчатский, Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en">Scientific Research Geotechnological Center Far Eastern Branch of Russian Academy of Science (Petropavlovsk-Kamchatsky, Russia)</institution>
          </aff>
        </aff-alternatives>
      </contrib-group>
      <pub-date pub-type="epub" iso-8601-date="2019-02-22">
        <day>22</day>
        <month>02</month>
        <year>2019</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>2019</year>
      </pub-date>
      <volume>235</volume>
      <fpage>47</fpage>
      <lpage>54</lpage>
      <history>
        <date date-type="received" iso-8601-date="2018-09-02">
          <day>02</day>
          <month>09</month>
          <year>2018</year>
        </date>
        <date date-type="accepted" iso-8601-date="2018-10-28">
          <day>28</day>
          <month>10</month>
          <year>2018</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="2019-02-22">
          <day>22</day>
          <month>02</month>
          <year>2019</year>
        </date>
      </history>
      <permissions>
        <copyright-statement>© T. S. Khainasova</copyright-statement>
        <copyright-year>2019</copyright-year>
        <copyright-holder xml:lang="ru">Т. С. Хайнасова</copyright-holder>
        <copyright-holder xml:lang="en">T. S. Khainasova</copyright-holder>
        <license xlink:href="http://creativecommons.org/licenses/by/4.0">
          <license-p>CC BY 4.0</license-p>
        </license>
      </permissions>
      <self-uri xlink:type="simple" xlink:href="https://pmi.spmi.ru/pmi/article/view/13175">https://pmi.spmi.ru/pmi/article/view/13175</self-uri>
      <abstract xml:lang="ru">
        <p>Извлечение ценных компонентов из сульфидных руд с помощью микроорганизмов на сегодняшний день служит признанным биотехнологическим методом, сочетающим в себе ряд преимуществ над традиционными способами переработки минерального сырья. В настоящей работе представлены основные факторы, оказывающие влияние на бактериально-химическое выщелачивание. Рассмотрены способы выщелачивания с участием микроорганизмов. Приведены некоторые физико-химические (температура, водородный показатель, концентрации кислорода, углекислого газа, питательных веществ, металлов и других химических элементов) и микробиологические (количество клеток и активность микрофлоры) свойства, прямо или косвенно (подавляя либо способствуя росту и окислительной способности микроорганизмов) оказывающие влияние на кинетику процесса. В работе дополнительно рассматриваются особенности минерального субстрата, включающие гальваническое взаимодействие сульфидных минералов и образование пассивирующих слоев на поверхности руды в ходе окисления, подчеркивая важность электрохимического взаимодействия компонентов выщелачивающей системы. Биовыщелачивание является сложным процессом, представляющим собой совокупность, главным образом, химических реакций, опосредованных микробной составляющей, поэтому для улучшения кинетики необходимо учитывать, контролировать и регулировать перечисленный спектр факторов.</p>
      </abstract>
      <abstract xml:lang="en">
        <p>Extraction of valuable components from sulphide ores using microorganisms is a recognized biotechnological method, combining several advantages over traditional methods of mineral processing. This paper presents the main factors affecting the bacterial-chemical leaching and methods of leaching with the participation of microorganisms. Some physical-chemical (temperature, pH, oxygen, carbon dioxide, nutrients, metals and other chemical elements) and microbial (cell count and microflora activity) properties are given, either directly or indirectly (suppressing or contributing to the growth and oxidative capacity of microorganisms) affecting the kinetics of the process. The paper discusses the characteristics of the mineral substrate, including galvanic interaction of sulfide minerals and the formation of passivating layers on the surface of the ore during oxidation, emphasizing the importance of the electrochemical interaction of the components of the leaching system. Bioleaching is a complex process, which is a combination of mainly chemical reactions mediated by the microbial component, therefore, to improve the kinetics, it is necessary to consider, monitor and regulate the listed range of factors.</p>
      </abstract>
      <kwd-group xml:lang="ru">
        <title>Ключевые слова</title>
        <kwd>биовыщелачивание</kwd>
        <kwd>сульфидные руды</kwd>
        <kwd>ацидофильные хемолитотрофные микроорганизмы</kwd>
        <kwd>физико-химические свойства</kwd>
        <kwd>способы биовыщелачивания</kwd>
      </kwd-group>
      <kwd-group xml:lang="en">
        <title>Keywords</title>
        <kwd>bioleaching</kwd>
        <kwd>sulphide  ores</kwd>
        <kwd>acidophilic  chemolithotrophic  microorganisms</kwd>
        <kwd>physical-chemical properties</kwd>
        <kwd>bioleaching methods</kwd>
      </kwd-group>
    </article-meta>
  </front>
  <body/>
  <back>
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