2411-3336 2541-9404 Записки Горного института Journal of Mining Institute Санкт-Петербургский горный университет императрицы Екатерины ΙΙ Empress Catherine II Saint Petersburg Mining University 10.31897/PMI.2022.27 pmi-15729 https://pmi.spmi.ru/pmi/article/view/15729 Геотехнология и инженерная геология Geotechnical Engineering and Engineering Geology Forecast of radionuclide migration in groundwater of the zone affected by construction drainage at the Leningrad NPP-2 Прогноз миграции радионуклидов в подземных водах в зоне влияния строительного дренажа Ленинградской АЭС-2 Erzova Valentina A. Ерзова В. А. Erzova Valentina A. erzova.spmu@yandex.ru 0000-0001-7415-7148 Санкт-Петербургский горный университет (Россия) Saint Petersburg Mining University (Russia) Rumynin Vyacheslav G. Румынин В. Г. Rumynin Vyacheslav G. rumynin@hgepro.ru 0000-0002-3928-0228 Санкт-Петербургское отделение Института геоэкологии им. Е.М.Сергеева РАН (Россия) Saint Petersburg Branch of the Institute of Geoecology named after E.M.Sergeev, RAS (Russia) Nikulenkov Anton M. Никуленков А. М. Nikulenkov Anton M. annik3@yandex.ru 0000-0001-5498-076X Санкт-Петербургское отделение Института геоэкологии им. Е.М.Сергеева РАН (Россия) Saint Petersburg Branch of the Institute of Geoecology named after E.M.Sergeev, RAS (Russia) Vladimirov Konstantin V. Владимиров К. В. Vladimirov Konstantin V. vladimirov@hgepro.ru 0000-0002-9325-8953 Санкт-Петербургское отделение Института геоэкологии им. Е.М.Сергеева РАН (Россия) Saint Petersburg Branch of the Institute of Geoecology named after E.M.Sergeev, RAS (Russia) Sudarikov Sergei M. Судариков С. М. Sudarikov Sergei M. Sudarikov_SM@pers.spmi.ru 0000-0002-3692-5692 Санкт-Петербургский горный университет (Россия) Saint Petersburg Mining University (Russia) Vilkina Mariia V. Вилькина М. В. Vilkina Mariia V. wilkina.mari@hgepro.ru 0000-0003-3687-7069 Санкт-Петербургское отделение Института геоэкологии им. Е.М.Сергеева РАН (Россия) Saint Petersburg Branch of the Institute of Geoecology named after E.M.Sergeev, RAS (Russia) 30 05 2022 2023 260 194 211 24 01 2022 26 04 2022 25 04 2023 © 2022 В. А. Ерзова, В. Г. Румынин, А. М. Никуленков, К. В. Владимиров, С. М. Судариков, М. В. Вилькина © 2022 Valentina A. Erzova, Vyacheslav G. Rumynin, Anton M. Nikulenkov, Konstantin V. Vladimirov, Sergei M. Sudarikov, Mariia V. Vilkina 2022 В. А. Ерзова, В. Г. Румынин, А. М. Никуленков, К. В. Владимиров, С. М. Судариков, М. В. Вилькина Valentina A. Erzova, Vyacheslav G. Rumynin, Anton M. Nikulenkov, Konstantin V. Vladimirov, Sergei M. Sudarikov, Mariia V. Vilkina Эта статья доступна по лицензии Creative Commons Attribution 4.0 International (CC BY 4.0) This article is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0) https://pmi.spmi.ru/pmi/article/view/15729

Проанализировано распределение природных (на уровне глобального фона) и техногенных радионуклидов в подземных водах промышленной зоны г. Сосновый Бор, где расположен ряд предприятий использования атомной энергии. Основные регистрируемые в пробах подземных вод техногенные радионуклиды представлены изотопами цезия (137Cs), стронция (90Sr) и тритием. Загрязнению подвержены два первых от поверхности водоносных горизонта: четвертичный и верхняя зона ломоносовского. На основании обширного материала по инженерно-геологическому изучению участка работ разработана трехмерная геологическая модель, а также созданы гидродинамическая и геомиграционные модели промышленной зоны. С помощью моделирования установлены масштабы и характер изменения гидрогеологических условий территории в результате строительного и эксплуатационного дренажа новой очереди Ленинградской атомной электростанции (ЛАЭС-2). В зону влияния попадает «исторический» ореол радиоактивного загрязнения подземных вод, сформировавшийся (1970-1990) на соседней с АЭС площадке, где размещается хранилище низко- и среднеактивных радиоактивных отходов. Интерпретация данных мониторинга позволила получить миграционные параметры для прогнозных оценок. Моделирование показало, что за время эксплуатации ЛАЭС-2 не происходит захват загрязненных вод дренажной системой новой станции.

The distribution of natural (at the level of global background) and technogenic radionuclides in groundwater of the industrial zone in Sosnovy Bor town, where several nuclear power facilities are operating, was analyzed. The main technogenic radionuclides recorded in groundwater samples are cesium (137Cs), strontium (90Sr), and tritium isotopes. The first two aquifers from the surface are subject to contamination: the Quaternary and the upper zone of the Lomonosov aquifer. Based on extensive material on the engineering and geological studies of the work area, a 3D geological model and hydrodynamic and geomigration models of the industrial zone were constructed. By means of modeling, the extent and nature of changes in hydrogeological conditions of area resulting from the construction and operational drainage of the new stage of the Leningrad Nuclear Power Plant (LNPP-2) were determined. The “historical” halo of radioactive contamination of groundwater forming (1970-1990) at the site adjacent to the NPP, where the storage facility of low- and medium-level radioactive waste is located, falls into the zone of influence. Interpretation of monitoring data allowed obtaining the migration parameters for predictive estimates. Modeling has shown that during the time of the LNPP-2 operation there was no intake of contaminated water by the drainage system of the new power plant.

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