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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">10.53360/2788-7995-2026-1(21)-74</article-id><article-id custom-type="elpub" pub-id-type="custom">kaz44-2251</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 ЭФФЕКТИВНОСТИ ОЧИСТКИ СТОЧНЫХ ВОД С ИСПОЛЬЗОВАНИЕМ КОМПЛЕКСНОГО СОСТАВА НА ОСНОВЕ БАКТЕРИАЛЬНОГО FE₂(SO₄)₃ И БЕНТОНИТА</article-title><trans-title-group xml:lang="en"><trans-title>STUDY OF THE EFFICIENCY OF WASTEWATER TREATMENT USING A COMPLEX COMPOSITION BASED ON BACTERIAL FE₂(SO₄)₃ AND BENTONITE</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Қожахметова</surname><given-names>А. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Kozhakhmetova</surname><given-names>A. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Айдана Маратовна Кожахметова – магистр естественных наук, старший преподаватель кафедры «Экология» </p><p>160021, Шымкент қ., Тауке хан 5</p></bio><bio xml:lang="en"><p>Aidana Maratovna Kozhakhmetova – Master of Natural Sciences, Senior Lecturer at the Department of Ecology </p><p>160021, Shymkent, Tauke khan 5</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><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>Маржан Нурлановна Сыздыкова – докторант кафедры «Экология» </p><p>160021, Шымкент қ., Тауке хан 5</p></bio><bio xml:lang="en"><p>M. N. Syzdykova – 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-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>М. Әуезов атындағы Оңтүстік Қазақстан Университеті</institution><country>Казахстан</country></aff><aff xml:lang="en"><institution>M. Auezov South Kazakhstan University</institution><country>Kazakhstan</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>25</day><month>05</month><year>2026</year></pub-date><volume>1</volume><issue>1(21)</issue><fpage>685</fpage><lpage>691</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Қожахметова А.М., Сыздыкова М.Н., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Қожахметова А.М., Сыздыкова М.Н.</copyright-holder><copyright-holder xml:lang="en">Kozhakhmetova A.M., Syzdykova M.N.</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/2251">https://tech.vestnik.shakarim.kz/jour/article/view/2251</self-uri><abstract><p>В статье представлены результаты исследования влияния трёхвалентного железа, полученного бактериально-химическим способом, и бентонита на показатель химического потребления кислорода (ХПК) сточных вод. В настоящее время для очистки сточных вод, содержащих моющие средства, применяются различные методы. Одним из наиболее распространённых является метод адсорбции, в частности использование углеродных материалов в качестве адсорбентов. Очистка сточных вод методом коагуляции осуществляется с применением таких коагулянтов, как сульфат алюминия или соли железа. Цель исследования – снижение показателя химического потребления кислорода (ХПК) сточных вод, содержащих моющие вещества, путём использования трёхвалентного железа, полученного бактериально-химическим методом с применением бентонита. Методы исследования включали выделение и культивирование бактерий методом предельных разведений, определение ХПК в соответствии с требованиями ГОСТ, математическое моделирование с использованием искусственного интеллекта, а также статистическую обработку данных на ПК «Pentium-IV» с применением пакета статистических программ Microsoft Excel. В результате исследований установлена возможность применения Fe₂(SO₄)₃, полученного бактериально-химическим путём с участием тионных бактерий A. ferrooxidans BIT 1. При совместном использовании бактериально-химического трёхвалентного железа в концентрации 1,75 г/л и бентонита 600 мг/л степень снижения ХПК сточных вод достигает 88,1±7,9%. При добавлении Fe₂(SO₄)₃ в количестве 1,75 г/л и бентонита 100 мг/л снижение ХПК составило 75,7%.</p></abstract><trans-abstract xml:lang="en"><p>The article presents the results of a study on the effect of trivalent iron obtained by a bacterial-chemical method and bentonite on the chemical oxygen demand (COD) of wastewater. Currently, various methods are used to treat wastewater containing detergents. One of the most common is the adsorption method, particularly using carbon-based materials as adsorbents. Wastewater treatment by coagulation is also widely applied, using coagulants such as aluminum sulfate or iron salts. The aim of the study was to reduce the chemical oxygen demand (COD) of wastewater containing detergents by applying trivalent iron obtained through a bacterial-chemical process using bentonite. The research methods included bacterial isolation and cultivation by the serial dilution method, COD determination according to GOST standards, mathematical modeling using artificial intelligence, and statistical data processing on a Pentium-IV PC using the Microsoft Excel statistical software package. As a result of the study, the possibility of using Fe₂(SO₄)₃ obtained by a bacterial-chemical method with A. ferrooxidans BIT 1 sulfur-oxidizing bacteria was established. Under conditions of combined use of bacterial–chemical trivalent iron (1.75 g/L) and bentonite (600 mg/L), the maximum COD reduction of wastewater reached 88.1±7.9%. When Fe₂(SO₄)₃ was applied at 1.75 g/L and bentonite at 100 mg/L, the COD reduction degree was 75.7%.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>коагуляция</kwd><kwd>сточная вода</kwd><kwd>тионовые бактерии</kwd><kwd>бентонит</kwd><kwd>Acidithiobacillus ferrooxidans</kwd></kwd-group><kwd-group xml:lang="en"><kwd>coagulation</kwd><kwd>wastewater</kwd><kwd>thion bacteria</kwd><kwd>bentonite</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">Advancing on the promises of techno-ecological nature-based solutions: A framework for green technology in water supply and treatment / E.A.J. 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(In Russian).</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
