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Microbial Processes in Engineering Clay Materials and Biocidal Additives to Prevent themстатья
- Авторы: Abramova E.S., Artemyev G.D., Popova N.M., Safonov A.V.
- Журнал: Applied Biochemistry and Microbiology
- Том: 58
- Номер: 9
- Год издания: 2022
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 1021
- Последняя страница: 1028
- Оригинальные версии: Микробные процессы в инженерных глинистых материалах и биоцидные добавки для их предотвращения
- DOI: 10.1134/s0003683822090022
- Аннотация: Microbial activity in engineering clay materials of protective barriers has been studied under conditions simulating the Yeniseiskii deep underground radioactive waste repository (Zheleznogorsk, Krasnoyarsk Kray). It was established that clays with a high content of sulfur, iron, and organic carbon, as well asclays containing bioavailable mineral phases (calcites, spars, and others) can be a source of microbial gas, including methane, and also of products (for instance, hydrogen sulfide) that can corrode steels in contact with clay materials. The microbial processes in clays that are rich in biogenic elements and minerals lead with a high intensity to the dissolution of the aluminosilicate structural lattices. To prevent the microbial exposure, various biocidal additives were used: Amanat, Rancid, boric acid and polyhexamethylguanidine (PHMG). The effect of these preparations at various temperatures was analyzed. It was found that PHMG was the most effective among the tested preparations in a wide temperature range.
- Добавил в систему: Абрамова Елена Сергеевна