Sorption power of the new generation of phytosorbents with respect to uranium

The sorption power of a new class of sorbents, phytosorbents, with respect to uranium was studied in model solution and real waters. Sorption was studied as influenced by the specific mass of the sorbent. The kinetic parameters of the sorption were determined, and diffusion inside the sorbent grain was identified as the limiting stage of the process. The diffusion coefficients were calculated; the exchange half-times were determined and confirmed. The uranium sorption was studied as influenced by pH. The maximal sorption of uranium is achieved at pH < 4. The exchange capacities of the sorbents were determined.

Авторы
Medvedev V.P.1 , Velichko B.A. 2 , Likhacheva O.V.1
Редакторы
-
Журнал
Издательство
-
Номер выпуска
6
Язык
Английский
Страницы
608-612
Статус
Опубликовано
Подразделение
-
Номер
-
Том
45
Год
2003
Организации
  • 1 Ozersk Technological Institute, Moscow Eng. Physical Institute, Ozersk, Chelyabinsk oblast, Russian Federation
  • 2 Russ. Univ. of Peoples' Friendship, Moscow, Russian Federation
Ключевые слова
sorbent; uranium; adsorption kinetics; analytic method; article; calculation; chemical model; desorption; diffusion; diffusion coefficient; pH measurement; radioactive waste disposal; radioactive waste processing
Дата создания
19.10.2018
Дата изменения
19.10.2018
Постоянная ссылка
https://repository.rudn.ru/ru/records/article/record/27/