Utilizing cost-effective biochar for highly efficient U(VI) removal from uranium-containing wastewater

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成果类型：

期刊论文

作者：

Peng, Kun;Zhang, Xiaoli;Tang, Donghui;Luo, Xu;Tian, Jie;...

通讯作者：

Wang, GH

作者机构：

[Luo, Xu; Peng, Kun; Wang, GH; Tang, Donghui; Wang, Guohua; Tian, Jie] Univ South China, Sch Civil Engn, Hengyang 421001, Peoples R China.

[Luo, Xu; Peng, Kun; Wang, GH; Tang, Donghui; Wang, Guohua; Tian, Jie] Univ South China, Hunan Prov Key Lab Pollut Control & Resource Reuse, Hengyang 421001, Peoples R China.

[Zhang, Xiaoli] Mayang Miao Autonomous Cty Ethn Middle Sch, Huaihua 419400, Peoples R China.

[Wang, GH; Wang, Guohua] Univ South China, Key Discipline Lab Natl Def Biotechnol Uranium Min, Hengyang 421001, Peoples R China.

通讯机构：

[Wang, GH ] U

Univ South China, Sch Civil Engn, Hengyang 421001, Peoples R China.

Univ South China, Hunan Prov Key Lab Pollut Control & Resource Reuse, Hengyang 421001, Peoples R China.

Univ South China, Key Discipline Lab Natl Def Biotechnol Uranium Min, Hengyang 421001, Peoples R China.

语种：

英文

关键词：

Sludge residue;U(VI)-containing wastewater;Biochar;Adsorption mechanisms

期刊：

Journal of Radioanalytical and Nuclear Chemistry

ISSN：

0236-5731

年：

2025

卷：

334

期：

页码：

727-739

DOI：

10.1007/s10967-024-09855-2

基金类别：

National Natural Science Foundation of China [51904155]; National Natural Science Foundation of China [2024JJ5331]; Natural Science Foundation of Hunan Province

机构署名：

本校为第一且通讯机构

院系归属：

土木工程学院

核资源工程学院

摘要：

Residual sludge (RS) from a wastewater treatment plant was used to prepare sludge-based biochar (RS-BC) by pyrolysis to treat U(VI)-containing wastewater. The findings revealed that RS-BC had exceptional adsorption performance, with a theoretical maximum adsorption capacity for U(VI) of 455.69 mg g(-1). The pseudo-second-order and Langmuir isotherm adsorption models effectively fit the adsorption process, and the thermodynamic parameters confirmed that the adsorption process was endothermic and spontaneous. The adsorption efficiency of U(VI) onto RS-BC exhibited remarkable stability and mainta...

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Utilizing cost-effective biochar for highly efficient U(VI) removal from uranium-containing wastewater

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