Solidification and Stabilization of Spent TBP/OK Organic Liquids in a Phosphate Acid-Based Geopolymer

被引:23
|
作者
Dong, Teng [1 ,2 ]
Xie, Shuibo [1 ,2 ]
Wang, Jingsong [1 ]
Zhao, Guodong [2 ]
Song, Qingchun [1 ]
机构
[1] Univ South China, Pollut Control & Resource Recovery Technol Key La, Hengyang 421001, Hunan, Peoples R China
[2] Univ South China, Sch Resources Environm & Safety Engn, Hengyang 421001, Hunan, Peoples R China
关键词
15;
D O I
10.1155/2020/8094205
中图分类号
TL [原子能技术]; O571 [原子核物理学];
学科分类号
0827 ; 082701 ;
摘要
A method for solidifying spent tributyl phosphate and kerosene (TBP/OK) organic liquids in a phosphate acid-based geopolymer (PAG) was investigated. The TBP/OK emulsion containing tween 80 (T80), TBP/OK organic liquids, and H3PO4 was prepared. The TBP/OK emulsion was mixed with metakaolin to obtain solidified TBP/OK forms (SPT). The compressive strength of the SPT was up to 59.19 MPa when the content of TBP/OK was 18%. The loss of compressive strength of SPT was less than 10% after immersion and less than 25% after freeze-thaw treatment. The final setting time was 40.0 h, and the shrinkage of SPT was nearly 3%. The leaching test indicated that the release of TBP/OK from hardened SPT was limited. Characterization of SPT suggested that solidification of TBP/OK using PAG occurred by physical encapsulation.
引用
收藏
页数:7
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