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| Removal of Uranium(Ⅵ) with Persimmon Tannin Modified by Waste Paper |
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Received:October 08, 2022
Revised:October 13, 2022
Accepted:October 18, 2022
Published Online:December 19, 2022
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| DOI：doi：10.3969/j.issn.1007-7545.2023.01.017 |
| KeyWord:persimmon tannin; waste paper; U(Ⅵ); adsorption |
| Author | Institution |
| ZHAO Yi |
东华理工大学水资源与环境工程学院 |
| FAN Xiao-lei |
东华理工大学水资源与环境工程学院 |
| SUN Zhan-xue |
东华理工大学水资源与环境工程学院 |
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| Abstract: |
| The oxidized waste paper was used as cross-linking agent to fix persimmon tannin in crops, and U(Ⅵ) in water was adsorbed by the method of "waste to waste". The adsorption capacity of uranium(Ⅵ) on persimmon tannin modified by waste paper (DAWP-PT) at different pH value, adsorption time and rotation speed was investigated by intermittent method. The results show that adsorption of DAWP-PT on uranium(Ⅵ) conforms to Langmuir and quasi-second-order kinetic model, and it is an adsorption process with spontaneous endothermic entropy increase. DAWP-PT is expected to provide a new adsorbent with high efficiency, no pollution and low cost for the treatment of uranium-containing wastewater |
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