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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">ekip</journal-id><journal-title-group><journal-title xml:lang="ru">Экология и промышленность России</journal-title><trans-title-group xml:lang="en"><trans-title>Ecology and Industry of Russia</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1816-0395</issn><issn pub-type="epub">2413-6042</issn><publisher><publisher-name>ООО "Калвис"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18412/1816-0395-2022-3-28-33</article-id><article-id custom-type="elpub" pub-id-type="custom">ekip-2025</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>НАУЧНЫЕ РАЗРАБОТКИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>SCIENTIFIC DEVELOPMENTS</subject></subj-group></article-categories><title-group><article-title>Очистка подземных вод от ионов тяжелых металлов композиционной нанофильтрационной мембраной</article-title><trans-title-group xml:lang="en"><trans-title>Purification of Underground Water From Heavy Metal Ions with a Composite Nanofiltration Membrane</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>Фазуллин</surname><given-names>Д.Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Fazullin</surname><given-names>D.D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. техн. наук, доцент</p></bio><bio xml:lang="en"><p>Cand. Sci. (Eng.), Associate Professor</p></bio><email xlink:type="simple">podpiska@kalvis.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Маврин</surname><given-names>Г.В.</given-names></name><name name-style="western" xml:lang="en"><surname>Mavrin</surname><given-names>G.V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. хим. наук. зав. кафедрой</p></bio><bio xml:lang="en"><p>Cand. Sci. (Chem.), Head of Department</p></bio><email xlink:type="simple">podpiska@kalvis.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Казанский федеральный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kazan Federal University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>02</day><month>03</month><year>2022</year></pub-date><volume>26</volume><issue>3</issue><fpage>28</fpage><lpage>33</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; ООО "Калвис", 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">ООО "Калвис"</copyright-holder><copyright-holder xml:lang="en">ООО "Калвис"</copyright-holder><license xlink:href="https://www.ecology-kalvis.ru/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://www.ecology-kalvis.ru/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://www.ecology-kalvis.ru/jour/article/view/2025">https://www.ecology-kalvis.ru/jour/article/view/2025</self-uri><abstract><p>Предложен способ получения композиционной мембраны с поверхностным слоем для процессов водоподготовки. Методом погружения полимерной подложки из нейлона-66 в раствор ацетата целлюлозы (АЦ) в ацетоне получены композитные мембраны нейлон-АЦ. Изучены свойства мембран, установлены параметры нанофильтрации композиционных мембран. Исследовано содержание ионов тяжелых металлов в подземной воде. Определена удельная производительность мембран по дистиллированной и подземной воде в зависимости от количества нанесенных слоев АЦ. Установлена селективность композитной мембраны по отношению к ионам металлов, задерживающая способность по которым составила в среднем 86 % при удельной производительности 137 дм3/(м2·ч), что превосходит производительность коммерческой мембраны нанофильтрации.</p></abstract><trans-abstract xml:lang="en"><p>A method for obtaining a composite membrane with a surface layer for water treatment processes is proposed. Nylon-AC composite membranes were obtained by immersion of a polymer substrate made of nylon-66 in a solution of cellulose acetate (AC) in acetone. The properties of membranes have been studied, the parameters of nanofiltration of composite membranes have been established. The content of heavy metal ions in underground water has been studied. The specific performance of membranes for distilled and underground water is determined depending on the number of applied layers of AC. The selectivity of the composite membrane with respect to metal ions was established, the retention capacity for which averaged 86 % with a specific productivity of 137 dm3/(m2·h), which exceeds the performance of a commercial nanofiltration membrane.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>подземные воды</kwd><kwd>водоочистка</kwd><kwd>ионы тяжелых металлов</kwd><kwd>нанофильтрация</kwd><kwd>композитная мембрана</kwd><kwd>ацетат целлюлозы</kwd></kwd-group><kwd-group xml:lang="en"><kwd>groundwater</kwd><kwd>water treatment</kwd><kwd>heavy metal ions</kwd><kwd>nanofiltration</kwd><kwd>composite membrane</kwd><kwd>cellulose acetate</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">Liao Z.P., Fang X.F., Li J.S. Incorporating organic nanospheres into the polyamide layer to prepare thin film composite membrane with enhanced biocidal activity and chlorine resistance. 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