Feasibility of uranium tailings for cemented backfill and its environmental effects

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成果类型：

期刊论文

作者：

Zhang, Xiao;Xue, Xilong*;Ding, Dexin;Gu, Yuantong;Sun, Pengcheng

通讯作者：

Xue, Xilong

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; Xue, Xilong; Gu, Yuantong] Univ South China, Sch Resources Environm & Safety Engn, Hengyang 421001, Hunan, Peoples R China.

[Xue, Xilong] Jinchuan Grp Co Ltd, State Key Lab Comprehens Utilizat Nickel & Cobalt, Jinchang 737100, Gansu, Peoples R China.

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

通讯机构：

[Xilong Xue] S

School of Resources, Environment and Safety Engineering, University of South China, Hengyang 421001, Hunan, China<&wdkj&>State Key Laboratory for Comprehensive Utilization of Nickel and Cobalt Resources, Jinchuan Group Co., Ltd., Jinchang 737100, Gansu, China

语种：

英文

关键词：

Cemented backfill;Environmental effect;Heap leaching uranium tailings;Microstructure;Uniaxial compressive strength

期刊：

Science of The Total Environment

ISSN：

0048-9697

年：

2023

卷：

863

页码：

160863

DOI：

10.1016/j.scitotenv.2022.160863

基金类别：

CRediT authorship contribution statement Xiao Zhang: Conceptualization, Methodology, Software, Investigation, Formal analysis, Writing – original draft. Xilong Xue: Conceptualization, acquisition, Resources, Supervision, Writing – review & editing. Dexin Ding: Writing – review & editing. Yuantong Gu: Software, Validation. Pengcheng Sun: Visualization, Investigation.

机构署名：

本校为第一机构

院系归属：

核资源工程学院

摘要：

Surface storage of uranium tailings presents a potential threat to the environment and human health. Cemented backfill can be used to dispose of tailings and control the ground pressure of stopes, providing a new approach for the in-situ seal of heap leaching uranium tailings (HLUTs). The backfilling characteristics of HLUTs were investigated by analyzing the release mechanism of sulfuric acid in HLUTs, the rheological properties of backfill slurry, as well as the strength development and microscopic characteristics of cemented HLUTs backfill (CUTB). The environmental effects of the CUTB were ...

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Feasibility of uranium tailings for cemented backfill and its environmental effects

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