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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">10.53360/2788-7995-2026-2(22)-76</article-id><article-id custom-type="elpub" pub-id-type="custom">kaz44-2690</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</subject></subj-group></article-categories><title-group><article-title>ОКИСЛИТЕЛЬНАЯ ДЕГРАДАЦИЯ ПОЛИСТИРОЛЬНОГО МИКРОПЛАСТИКА ПРОЦЕССОМ ФЕНТОНА</article-title><trans-title-group xml:lang="en"><trans-title>OXIDATIVE DEGRADATION OF POLYSTYRENE MICROPLASTIC BY THE FENTON PROCESS</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0002-0258-8277</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сапаргали</surname><given-names>И. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Sapargali</surname><given-names>I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Инабат Омирузаккызы Сапаргали – магистрант, научный сотрудник лаборатории инженерного профиля, </p><p>050013, г. Алматы, ул. Сатпаева, 22</p></bio><bio xml:lang="en"><p>Inabat Sapargali – master student, researcher at the Engineering Laboratory, </p><p>050013, г. Алматы, ул.Сатпаева 22 </p></bio><email xlink:type="simple">sapargali.i@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/0009-0005-6517-6933</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Каныкешова</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kanykeshova</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Акерке Алмаскызы Каныкешова – магистрант, научный сотрудник лаборатории инженерного профиля, </p><p>050013, г. Алматы, ул. Сатпаева, 22</p></bio><bio xml:lang="en"><p>Akerke Almaskyzy Kanykeshova – master student, researcher at the Engineering Laboratory, </p><p>050013, г. Алматы, ул.Сатпаева 22 </p></bio><email xlink:type="simple">a.aslmasovna@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8640-0667</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кунарбекова</surname><given-names>М. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Kunarbekova</surname><given-names>M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Махаббат Сейт-Задаевна Кунарбекова – PhD, научный сотрудник лаборатории инженерного профиля, </p><p>050013, г. Алматы, ул. Сатпаева, 22</p></bio><bio xml:lang="en"><p>Makhabbat Kunarbekova – PhD, researcher at the Engineering Laboratory,</p><p>050013, г. Алматы, ул.Сатпаева 22 </p></bio><email xlink:type="simple">m.kunarbekova@satbayev.university</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4131-0905</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Токтарбай</surname><given-names>Ж.</given-names></name><name name-style="western" xml:lang="en"><surname>Toktarbay</surname><given-names>Zh.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Жексенбек Токтарбай – PhD, ассоц.профессор, научный сотрудник лаборатории инженерного профиля, </p><p>050013, г. Алматы, ул. Сатпаева, 22</p></bio><bio xml:lang="en"><p>Zhexenbek Toktarbay – PhD, Associate Professor, Researcher at the Engineering Profile Laboratory, </p><p>050013, г. Алматы, ул.Сатпаева 22 </p></bio><email xlink:type="simple">zhexenbek.toktarbay@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4131-0905</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Азат</surname><given-names>С.</given-names></name><name name-style="western" xml:lang="en"><surname>Azat</surname><given-names>S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сейтхан Азат – PhD, профессор, Руководитель лаборатории инженерного профиля, </p><p>050013, г. Алматы, ул. Сатпаева, 22</p></bio><bio xml:lang="en"><p>Seitkhan Azat – PhD, professor, Head of the Laboratory of Engineering Profile, </p><p>050013, г. Алматы, ул.Сатпаева 22 </p></bio><email xlink:type="simple">s.azat@satbayev.university</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Satbayev University</institution><country>Казахстан</country></aff><aff xml:lang="en"><institution>Satbayev University</institution><country>Kazakhstan</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>29</day><month>07</month><year>2026</year></pub-date><volume>0</volume><issue>2(22)</issue><fpage>754</fpage><lpage>763</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Сапаргали И.О., Каныкешова А.А., Кунарбекова М.С., Токтарбай Ж., Азат С., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Сапаргали И.О., Каныкешова А.А., Кунарбекова М.С., Токтарбай Ж., Азат С.</copyright-holder><copyright-holder xml:lang="en">Sapargali I., Kanykeshova A.A., Kunarbekova M., Toktarbay Z., Azat S.</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/2690">https://tech.vestnik.shakarim.kz/jour/article/view/2690</self-uri><abstract><p>Проблема накопления полимерных микрочастиц в водных объектах требует поиска новых, более интенсивных методов их разрушения. Одним из наиболее трудноразлагаемых загрязнителей является полистирол. Наличие массивных фенильных групп в его макромолекуле стерически препятствует микробному расщеплению и обеспечивает общую химическую инертность материала. В связи с этим в данной работе исследована окислительная деструкция дисперсных полистирольных частиц в водной среде с использованием гомогенной системы Фентона (FeSO₄* 7H₂O / H₂O₂).</p><p>Экспериментальную часть проводили в термостатируемых условиях при температуре 35- 40°C и кислотности среды pH 2-3. Выбранный узкий диапазон pH критически важен для поддержания ионов железа в каталитически активной форме и предотвращения их осаждения. В этих условиях инициируется активная генерация гидроксильных радикалов (•OH). Обладая высоким окислительным потенциалом, они отщепляют атомы водорода от полимерного каркаса, что неизбежно приводит к разрыву основных углерод-углеродных связей и падению молекулярной массы.</p><p>Поверхностные изменения образцов до и после реакции оценивали методами оптической и сканирующей электронной микроскопии (СЭМ). На полученных микрофотографиях четко фиксируется эрозия поверхности пластика: образование выраженных микротрещин, сколов и каверн. Изменение дисперсного состава суспензий дополнительно контролировали методом динамического светорассеяния (ДЛС). Результаты подтвердили значительное смещение размерного распределения частиц в сторону более мелких фракций.</p><p>Результаты экспериментов доказывают, что реакция Фентона эффективно запускает окислительное разложение прочных ароматических полимеров. Поэтому данный подход стоит рассматривать как перспективную стадию для систем очистки производственных вод.</p></abstract><trans-abstract xml:lang="en"><p>The buildup of plastic microparticles in water is a serious problem that requires new, faster ways to break them down. Polystyrene is one of the toughest pollutants to destroy. Because of its large phenyl groups, microbes can hardly break it down, making the material very stable. In this study, we looked at how to decompose polystyrene particles in water using the Fenton process (FeSO4 * 7H2O/H2O2). We ran the experiments at a stable temperature of 35-40°C and a pH level of 2-3. Keeping the pH in this narrow range is vital; it keeps the iron active and stops it from settling out as a solid. Under these conditions, the system starts producing hydroxyl radicals (•OH). These radicals are powerful oxidizers that pull hydrogen atoms from the polymer frame, which breaks the carbon-carbon bonds and cuts the size of the molecules. To see how the surface changed before and after the reaction, we used optical and scanning electron microscopy (SEM). The images clearly show the plastic wearing away, with deep cracks, chips, and small pits (cavities) appearing. We also checked the particle sizes using dynamic light scattering (DLS). The data confirmed that the particles became significantly smaller after the treatment.Our results prove that the Fenton reaction effectively starts the breakdown of strong aromatic polymers. Therefore, this method is a promising step for industrial wastewater treatment systems.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>микропластик</kwd><kwd>полистирол</kwd><kwd>процесс Фентона</kwd><kwd>окислительная деградация</kwd><kwd>очистка воды</kwd></kwd-group><kwd-group xml:lang="en"><kwd>microplastics</kwd><kwd>polystyrene</kwd><kwd>Fenton process</kwd><kwd>oxidative degradation</kwd><kwd>water treatment</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке Комитета науки Министерства науки и высшего образования Республики Казахстан (ИРН проекта: BR27199301).</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Plastic waste inputs from land into the ocean / J.R. 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