We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Desorption technologies for remediation of cesium-contaminated soils: a short review.
- Authors
Park, Sang-Min; Kim, Jong-Gook; Kim, Hye-Bin; Kim, Young-Hun; Baek, Kitae
- Abstract
This review summarizes the mechanisms for desorbing and extracting cesium (Cs+) from clay minerals and soil. Most techniques use ion exchange with acids, cations, polymers, and surfactants. Some improve desorption of Cs+ from clay minerals, while surfactants and polymers expand the interlayer. Mixtures of acids/polymers, acids/surfactants, cations/polymers, and cations/surfactants are therefore more effective agents for desorption of Cs+ from clay minerals. Hydrothermal treatment plays a role similar to that of polymers and surfactants in expanding the interlayer of clay minerals. The primary desorption mechanism expands the interlayer and desorbs Cs+, but multiple sequential extractions based on these techniques can more effectively desorb Cs+ from clay minerals and field-contaminated soils. Desorption techniques for Cs+ based on multiple sequential extractions can reportedly achieve an efficiency greater than 90%, and such approaches are likely to be important technologies for remediation of Cs+-contaminated soils and industrial accident sites, as well as the dismantling of nuclear power plants.
- Subjects
SOIL remediation; CESIUM; DESORPTION; CLAY minerals; SOIL mineralogy; NUCLEAR power plants
- Publication
Environmental Geochemistry & Health, 2021, Vol 43, Issue 9, p3263
- ISSN
0269-4042
- Publication type
Article
- DOI
10.1007/s10653-020-00667-3