A study of the mechanical properties, environmental effect, and microscopic mechanism of phosphorus slag-based uranium tailings backfilling materials

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成果类型：

期刊论文

作者：

Zhang, Xiao;Xue, Xilong;Ding, Dexin;Sun, Pengcheng;Li, Jiale;...

通讯作者：

Xue, XL

作者机构：

[Zhang, Xiao; Ding, Dexin] Univ South China, Key Discipline Lab Natl Def Biotechnol Uranium Min, Hengyang 421001, Hunan, Peoples R China.

[Zhang, Xiao; Ding, Dexin; Sun, Pengcheng; He, Yan; Xue, Xilong; Li, Jiale] Univ South China, Sch Resources Environm & Safety Engn, Hengyang 421001, Hunan, Peoples R China.

[Xue, Xilong] Jinchuan Grp Co Ltd, Ni&Co Associated Minerals Resources Dev & Comprehe, Natl Key Lab, Jinchang 737100, Gansu, Peoples R China.

[Xue, Xilong; Xue, XL] Safety Engn Univ South China, Sch Resources Environm, 28 Changsheng west Rd, Hengyang 421001, Peoples R China.

通讯机构：

[Xue, XL ] S

Safety Engn Univ South China, Sch Resources Environm, 28 Changsheng west Rd, Hengyang 421001, Peoples R China.

语种：

英文

关键词：

Binders;Carbon dioxide;Cements;Cost effectiveness;Fluidity;Hydration;Leaching;Mining;Phosphorus;Slags;Uranium;Cemented backfill;Effect mechanism;Heap leaching;Heap leaching urania tailing;Leaching behavior;Microscopic mechanisms;Occurrence form;Phosphorus slag;Radon exhalation rate;Setting time;Blending

期刊：

Journal of Cleaner Production

ISSN：

0959-6526

年：

2024

卷：

446

页码：

141306

DOI：

10.1016/j.jclepro.2024.141306

基金类别：

This work was financially supported by the National Natural Science Foundation of China (No. 52274126 ); Excellent Youth Foundation of Hunan Educational Committee (No. 19B486 ); Natural Science Foundation of Hunan Province (No. 2019JJ50516 ); The State Key Laboratory of Nickel and Cobalt Resources Comprehensive Utilization (No. GZSYS-KY-2020-013 ); China Postdoctoral Science Foundation (No. 2021M693837 ); Graduate Research and Innovation Projects of Hunan Province (No. CX20220969 ). We thank the professors and students who provided us with testing assistance.

机构署名：

本校为第一且通讯机构

院系归属：

核资源工程学院

摘要：

Heap leaching uranium tailings (HLUTs) contain radionuclides and sulfuric acid, presenting some challenges for the disposal of cemented HLUTs backfill (CUTB), including low stability and potential environmental contamination. In light of these issues, using a blend of cement clinker (CL) and high content phosphorus slag (PS) as binders to replace traditional cement for the preparation of green and cost-effective CUTB were proposed. The fluidity, setting time (ST), mechanical properties, Radon (Rn) exhalation rate, uranium (U) occurrence form, U...

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A study of the mechanical properties, environmental effect, and microscopic mechanism of phosphorus slag-based uranium tailings backfilling materials

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