RUDN Journal of Ecology and Life SafetyRUDN Journal of Ecology and Life SafetyВестник Российского университета дружбы народов. Серия: Экология и безопасность жизнедеятельности2313-23102408-8919Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)4755010.22363/2313-2310-2025-33-4-467-476ILJLFQGeoecologyГеоэкологияResearch ArticleElectronic waste as a source of heavy metal contamination of soils: leaching dynamics under simulated landfill conditionsЭлектронные отходы как источник загрязнения почв тяжелыми металлами: динамика выщелачивания в условиях имитации полигона отходовhttps://orcid.org/0009-0009-1107-49222500-8186OstanniyDaniil A.ОстаннийДаниил Александрович

Postgraduate student, Faculty of Comprehensive Security and Military Training

аспирант, факультет комплексной безопасности и основ военной подготовки

daostanny@ya.ruhttps://orcid.org/0000-0003-4943-89466603-6401ShakhramanyanMikhail A.ШахраманьянМихаил Андраникович

Honored Scientist of the Russian Federation, Doctor of Technical Sciences, Professor, Financial University under the Government of the Russian Federation, Academician of the Russian Academy of Natural Sciences (RAEN).

заслуженный деятель науки РФ, доктор технических наук, профессор, Финансовый университет при Правительстве РФ, академик РАЕН

shahramanianma@corp-univer.ruRussian State Social UniversityРоссийский государственный социальный университетFinancial University under the Government of the Russian FederationФинансовый университет при Правительстве РФ15122025334Green Economy: Challenges and ProspectsЗеленая экономика: вызовы и перспективы46747609122025Copyright ©; 2025, Ostanniy D.A., Shakhramanyan M.A.Copyright ©; 2025, Останний Д.А., Шахраманьян М.А.2025Ostanniy D.A., Shakhramanyan M.A.Останний Д.А., Шахраманьян М.А.https://creativecommons.org/licenses/by-nc/4.0https://journals.rudn.ru/ecology/article/view/47550

Electronic waste poses a serious environmental threat due to the content of heavy metals. The aim of the work is to evaluate the leaching of heavy metals (Cu, Pb, Zn, Cd, Cr, Ni) from printed circuit boards and cables under simulated urban landfill conditions (SPLP method, 8 cycles). E-waste was found to be a significant source of contamination. Printed circuit boards showed a gradual increase in the concentrations of Cu (up to 2.33 mg/L), Pb (up to 0.666 mg/L) and Zn (up to 1.385 mg/L) in the leachate. The cables were characterized by high initial Cu removal (3.50 mg/L) followed by a decrease. A heuristic risk assessment model was developed.

Электронные отходы представляют серьезную экологическую угрозу из-за содержания тяжелых металлов. Цель исследования - оценка выщелачивания тяжелых металлов (Cu, Pb, Zn, Cd, Cr, Ni) из печатных плат и кабелей в условиях имитации городской свалки (метод SPLP, 8 циклов). Установлено, что электронные отходы являются значимым источником загрязнения. Печатные платы демонстрировали постепенный рост концентраций Cu (до 2,33 мг/л), Pb (до 0,666 мг/л) и Zn (до 1,385 мг/л) в фильтрате. Для кабелей был характерен высокий начальный вынос Cu (3,50 мг/л) с последующим снижением. Разработана эвристическая модель оценки риска.

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