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| Study on Removal of Uranium-bearing Wastewater by Quartz Sand Loaded Fe0-HAP Composites |
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Received:July 11, 2019
Revised:July 16, 2019
Accepted:July 18, 2019
Published Online:November 18, 2019
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| DOI：doi：10.3969/j.issn.1007-7545.2019.12.015 |
| KeyWord:quartz sand; hydroxyapatite; Fe0; uranium-bearing wastewater |
| Author | Institution |
| Liao Long |
东华理工大学水资源与环境工程学院，东华理工大学核资源与环境国家重点实验室 |
| ZENG Hua |
东华理工大学水资源与环境工程学院，东华理工大学核资源与环境国家重点实验室 |
| Li Hui |
东华理工大学水资源与环境工程学院 |
| Pu Fengling |
东华理工大学水资源与环境工程学院 |
| SUN Dong-yue |
东华理工大学水资源与环境工程学院 |
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| Abstract: |
| Zero valent iron was synthesized by liquid phase reduction method and loaded on hydroxyapatite, and stable quartz sand loaded Fe0-HAP composites was obtained applying quartz sand as skeleton. Static test method was used to investigate effect of different particle size of quartz sand loaded Fe0-HAP composites on treatment of U(Ⅵ) in uranium-bearing wastewater under different conditions, such as time, initial concentration of uranium, dosage, and pH value. The results show that quartz sand loaded Fe0-HAP composite has good effect on treatment of U(Ⅵ) in uranium-bearing wastewater. When dosage of composite with particle size of 0.30-0.60 mm, 0.60-1.18 mm and 1.18-2.36 mm is 0.1 g, 0.1 g, 0.2 g respectively, and reaction time is 160 min, removal rate of U(Ⅵ) in uranium-bearing wastewater is 80.60%-90.38% and adsorption capacity is 8.060-9.038 mg/g. Removal of U(Ⅵ) from uranium-bearing wastewater by quartz sand loaded Fe0-HAP composites is more consistent with pseudo-second-order kinetic model and Langmuir adsorption isotherm model. |
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