A Study of Sr Sorption Behavior in Claystone from a Candidate High-Level Radioactive Waste Geological Disposal Site under the Action of FeOOH Colloids
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Experiment Methods
2.3. Data Analysis Methods
2.4. Characterization
3. Results and Discussion
3.1. Factors Influencing Sr Sorption onto the Sorbent
3.1.1. Effect of Colloid Amount
3.1.2. Effect of Solid Content
3.1.3. Effect of the pH
3.2. Interaction Mechanism
3.2.1. Sorption Kinetics Analysis
3.2.2. Microstructure Analysis
3.2.3. Mineral Species Analysis
3.2.4. Functional Group Analysis
3.2.5. Chemical Bond Analysis
4. Conclusions
Supplementary Materials
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Sorption System | Sorption Kinetics | Parameter 1 | Parameter 2 | R2 |
---|---|---|---|---|
CT | Pseudo-first-order (PFO) | qe (mg·g−1) = 1.5615 | kf (min−1) = 2.7433 | 0.9916 |
Pseudo-second-order (PSO) | qe (mg·g−1) = 1.5629 | kS (g∙mg−1∙min−1) = 11.1227 | 0.9904 | |
Elovich | α (g∙mg−1∙min−1) = 8.95 × 104 | β (g·mg-1) = 67.0384 | 0.9752 | |
Intraparticle Diffusion | Kp (mg∙g−1∙min−1/2) = 0.0039 | C (mg·g-1) = 1.3709 | 0.0366 | |
CF | Pseudo-first-order (PFO) | qe (mg·g−1) = 1.5494 | kf (min−1) = 1.9547 | 0.9832 |
Pseudo-second-order (PSO) | qe (mg·g−1) = 1.5543 | kS (g∙mg−1∙min−1) = 4.3983 | 0.9798 | |
Elovich | α (g∙mg−1∙min−1) = 3.71 × 104 | β (g·mg−1) = 67.3489 | 0.9563 | |
Intraparticle Diffusion | Kp (mg∙g−1∙min−1/2) = 0.0038 | C (mg·g−1) = 1.3536 | 0.0344 |
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Wang, J.; Cai, W.; Zuo, R.; Du, C. A Study of Sr Sorption Behavior in Claystone from a Candidate High-Level Radioactive Waste Geological Disposal Site under the Action of FeOOH Colloids. Int. J. Environ. Res. Public Health 2022, 19, 9970. https://doi.org/10.3390/ijerph19169970
Wang J, Cai W, Zuo R, Du C. A Study of Sr Sorption Behavior in Claystone from a Candidate High-Level Radioactive Waste Geological Disposal Site under the Action of FeOOH Colloids. International Journal of Environmental Research and Public Health. 2022; 19(16):9970. https://doi.org/10.3390/ijerph19169970
Chicago/Turabian StyleWang, Jinsheng, Weihai Cai, Rui Zuo, and Can Du. 2022. "A Study of Sr Sorption Behavior in Claystone from a Candidate High-Level Radioactive Waste Geological Disposal Site under the Action of FeOOH Colloids" International Journal of Environmental Research and Public Health 19, no. 16: 9970. https://doi.org/10.3390/ijerph19169970