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<article article-type="research-article" dtd-version="1.3" 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" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">kaz44</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Университета Шакарима. Серия технические науки</journal-title><trans-title-group xml:lang="en"><trans-title>Bulletin of Shakarim University. Technical Sciences</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2788-7995</issn><issn pub-type="epub">3006-0524</issn><publisher><publisher-name>«Шәкәрім университеті» КеАҚ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.53360/2788-7995-2025-1(17)-49</article-id><article-id custom-type="elpub" pub-id-type="custom">kaz44-1408</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ХИМИЧЕСКАЯ ТЕХНОЛОГИЯ (ОРИГИНАЛЬНАЯ СТАТЬЯ)</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CHEMICAL TECHNOLOGY (ORIGINAL ARTICLE)</subject></subj-group></article-categories><title-group><article-title>ИССЛЕДОВАНИЕ СКОРОСТИ БИОХИМИЧЕСКОГО ОКИСЛЕНИЯ ЖЕЛЕЗА  БАКТЕРИАЛЬНЫМ ШТАММОМ ACIDITHIOBACILLUS FERROOXIDANS ACH 1,  ИСПОЛЬЗУЕМЫМИ ДЛЯ ОЧИСТКИ СТОЧНЫХ ВОД</article-title><trans-title-group xml:lang="en"><trans-title>INVESTIGATION OF THE RATE OF BIOCHEMICAL OXIDATION OF IRON BY THE BACTERIAL STRAIN ACIDITHIOBACILLUS FERROOXIDANS ACH 1 USED FOR WASTEWATER TREATMENT</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9603-9748</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сыздыкова</surname><given-names>М. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Syzdykova</surname><given-names>M. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>160021, Шымкент, Тауке хан 5</p></bio><bio xml:lang="en"><p>master of Natural Sciences, Doctoral student of the Department of Ecology</p><p>160021, Shymkent, Tauke khan 5</p></bio><email xlink:type="simple">maksat.marzhan@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8323-3982</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Исаева</surname><given-names>А. У.</given-names></name><name name-style="western" xml:lang="en"><surname>Issayeva</surname><given-names>A. U.</given-names></name></name-alternatives><bio xml:lang="ru"><p>160021, Шымкент, Тауке хан 5</p></bio><bio xml:lang="en"><p>Doctor of Biological Sciences, Professor of the Department of Ecology</p><p>160021, Shymkent, Tauke khan 5</p></bio><email xlink:type="simple">akissayeva@bk.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Южно-Казахстанский Университет имени М. Ауэзова<country>Казахстан</country></aff><aff xml:lang="en">M.Auezov South Kazakhstan University<country>Kazakhstan</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>29</day><month>03</month><year>2025</year></pub-date><volume>0</volume><issue>1(17)</issue><fpage>398</fpage><lpage>403</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Сыздыкова М.Н., Исаева А.У., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Сыздыкова М.Н., Исаева А.У.</copyright-holder><copyright-holder xml:lang="en">Syzdykova M.N., Issayeva A.U.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://tech.vestnik.shakarim.kz/jour/article/view/1408">https://tech.vestnik.shakarim.kz/jour/article/view/1408</self-uri><abstract><p>В данной статье были рассмотрены вопросы биохимической очистки сточных вод бактериями. Было исследовано, что скорость окисления железа бактериями, используемыми при очистке сточных вод, зависит от фактора окружающей среды, в том числе температуры. Одним из наиболее доступных и распространенных методов очистки сточных вод, является очистка с использованием минеральных коагулянтов (солей алюминия и железа) и флокулянтов. Основным назначением коагулянтов и флокулянтов является увеличение размера частиц за счет их адгезии (агрегации) и, как следствие, повышение эффективности очистки за счет фильтрации, осаждения и флотации воды. Мы рекомендуем культуральную суспензию бактерий Acidithiobacillus ferrooxidans использовать в качестве коагулянта для очистки сточных вод предприятий от ионов металлов и некоторых органических загрязнителей. A.ferrooxidans использует Fe2+ в качестве источника энергии, поэтому концентрация Fe2+ в среде может влиять на рост бактерий. В процессе окисления двухвалентного железа до трехвалентного железа бактерии получают энергию, необходимую для их метаболизма. Трехвалентное железо, полученное в процессе окисления, может использоваться в качестве биокоагулянта при очистке сточных вод. В статье показана оптимальная температура для биохимического окисления железа бактериями.</p></abstract><trans-abstract xml:lang="en"><p>This article discusses the issue of biochemical wastewater treatment by microorganisms. It has been investigated that the rate of iron oxidation by bacteria used in wastewater treatment depends on environmental factors, including temperature. One of the most common and affordable treatment methods is the treatment of industrial wastewater using mineral coagulants (aluminum and iron salts) and flocculants. The main purpose of coagulants and flocculants is to increase the particle size due to their adhesion (aggregation) and, as a result, to increase the efficiency of purification due to filtration, precipitation, and flotation of water. We recommend using the culture liquid of Acidithiobacillus ferrooxidans bacteria as a coagulant for wastewater treatment of enterprises from metal ions and some organic pollutants. A.ferrooxidans uses Fe2+ as an energy source, so the concentration of Fe2+ in the medium can affect the growth of bacteria. In the process of oxidation of ferrous iron to trivalent iron, bacteria receive the energy necessary for their metabolism. Trivalent iron obtained during the oxidation process can be used as a biocoagulant in wastewater treatment. The article shows the optimal temperature for biochemical oxidation of iron by bacteria.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>коагуляция</kwd><kwd>сточная вода</kwd><kwd>тионовые бактерии</kwd><kwd>окисление</kwd><kwd>Acidithiobacillus ferrooxidans</kwd></kwd-group><kwd-group xml:lang="en"><kwd>coagulation</kwd><kwd>wastewater</kwd><kwd>thion bacteria</kwd><kwd>oxidation</kwd><kwd>Acidithiobacillus ferrooxidans</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Современное состояние и проблемы очистки сточных вод в Казахстане / Т.С. Жылқыбаев и др. // Вестник КазАТК. – 2023. – № 4. – С. 514-523.</mixed-citation><mixed-citation xml:lang="en">Sovremennoe sostoyanie i problemy ochistki stochnykh vod v Kazakhstane / T.S. Zhylқybaev i dr. // Vestnik KaZATK. – 2023. – № 4. – S. 514-523. 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