Problems of risk management in the technosphere Problems of risk management in the technosphere Проблемы управления рисками в техносфере 1998-8990 112602 10.61260/1998-8990-2025-4-239-250 Экологическая безопасность Environmental safety Экологическая безопасность INVESTIGATION OF THE KINETICS AND MECHANISM OF THERMAL DEGRADATION OF EGGSHELLS AS A POTENTIAL RAW MATERIAL RESOURCE ИССЛЕДОВАНИЕ КИНЕТИКИ И МЕХАНИЗМА ТЕРМОДЕСТРУКЦИИ ЯИЧНОЙ СКОРЛУПЫ КАК ПОТЕНЦИАЛЬНОГО СЫРЬЕВОГО РЕСУРСА https://orcid.org/0000-0001-9571-3166 Будыкина Татьяна Алексеевна Budykina Tat'yana Alekseevna TBUDYKINA@YANDEX.RU

доктор технических наук;

doctor of technical sciences;

 https://orcid.org/0000-0001-9635-8389 Соколов Леонид Иванович Sokolov Leonid I. sokolovli@mail.ru

доктор технических наук;

doctor of technical sciences;

 Смирнова Ирина Михайловна Smirnova Irina M. mishinaira95@gmail.com Академия гражданской защиты МЧС России Россия Federal State Budgetary Military Educational Institution of Higher Education "Academy of Civil Defense of the Ministry of the Russian Federation for Civil Defense, Emergencies and Disaster Management" Russian Federation Российская академия архитектуры и строительных наук Москва Россия Russian academy of architecture and building sciences Moscow Russian Federation Российский государственный геологоразведочный университет имени Серго Орджоникидзе Москва Россия Russian state geological exploration university named after Sergo Ordzhonikidze Moscow Russian Federation Научно-исследовательский институт строительной физики Российской академии архитектуры и строительных наук Россия Scientific research institute of building physics of the Russian academy of architecture and building sciences Russian Federation 24 12 2025 24 12 2025 2025 4 239 250 11 09 2025 15 10 2025 https://journals.igps.ru/en/nauka/article/112602/view

Кинетика и механизмы химических реакций, участвующих в разложении яичной скорлупы, изучаются с помощью экспериментальных (термогравиметрический анализ и дифференциальный термический анализ), а также теоретических моделей. Присутствие фазы кальцита в сырой яичной скорлупе и постепенное при обжиге образование из него оксида кальция подтверждено экспериментально. Рециклированная яичная скорлупа демонстрирует лучшую кристалличность по сравнению с товарным (коммерческим) карбонатом кальция. Обосновано, что яичная скорлупа может быть использована непосредственно в качестве катализатора, адсорбента и в качестве сырья для синтеза материалов с добавленной стоимостью, что позволяет снизить энергопотребление и минимизирует воздействие на природную среду за счёт рециклинга неизбежного отхода пищевой промышленности.

The kinetics and mechanisms of chemical reactions involved in the decomposition of eggshells are studied using experimental (thermogravimetric analysis and differential thermal analysis), as well as theoretical models. The presence of the calcite phase in the raw eggshell and the gradual formation of calcium oxide from it during firing has been confirmed experimentally. Recycled eggshells demonstrate better crystallinity compared to commercial calcium carbonate. It is proved that eggshells can be used directly as a catalyst, adsorbent and as a raw material for the synthesis of value-added materials, which reduces energy consumption and minimizes the impact on the natural environment by recycling the inevitable waste of the food industry.

 экологическая безопасность ресурсосберегающие технологии обращение с отходами яичная скорлупа кальцинирование синхронный термический анализ термогравиметрические кривые дифференциально-сканирующая калориметрия environmental safety resource-saving technologies waste management eggshell calcination synchronous thermal analysis thermogravimetric curves differential scanning calorimetry

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