Eggshell based biochar for highly efficient adsorption and recovery of phosphorus from aqueous solution: Kinetics, mechanism and potential as phosphorus fertilizer

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成果类型：

期刊论文

作者：

Sun, Chengyou;Cao, Heng;Huang, Chao;Wang, Ping;Yin, Jinglin;...

通讯作者：

Chao Huang

作者机构：

[Liu, Hao; Cao, Heng; Huang, Chao; Tian, Haoran; Xu, Haiyin; Sun, Chengyou; Zhu, Jian; Wang, Ping] Cent South Univ Forestry & Technol, Coll Environm Sci & Engn, Changsha 410004, Peoples R China.

[Huang, Chao] Cent South Univ Forestry & Technol, Fac Life Sci & Technol, Changsha 410004, Peoples R China.

[Yin, Jinglin] Cent South Univ Forestry & Technol, Coll Sci, Changsha 410004, Peoples R China.

[Liu, Zhiming] Eastern New Mex Univ, Dept Biol, Portales, NM 88130 USA.

通讯机构：

[Chao Huang] C

College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China<&wdkj&>Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha 410004, China

语种：

英文

关键词：

Adsorbent;Eggshell modified biochar;Phosphorus recovery;Slow-release fertilizer

期刊：

Bioresource Technology

ISSN：

0960-8524

年：

2022

卷：

362

页码：

127851

DOI：

10.1016/j.biortech.2022.127851

基金类别：

This work was supported by the National Natural Science Foundation of China ( 51809293 ), Research Foundation of Education Department of Hunan Province (19B588), China Postdoctoral Science Foundation (2018 M633004), Primary Research & Development Plan of Hunan Province (2019SK2191), High-Tech Industry Science and Technology Innovation Leading Plan of Hunan Province (2020SK2039), and Scientific Research Staring Foundation for the Attracted Talent of Central South University of Forestry and Technology (2018YJ016).

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生命科学与技术学院

理学院

环境科学与工程学院

摘要：

Development of an efficient and green adsorbent is of great significance for phosphorus removal and recovery from eutrophic water. This work prepared an eggshell modified biochar (ESBC) by co-pyrolysis of eggshells and corn stalk. ESBC exhibited an excellent performance for phosphorus adsorption over a wide pH range (5–13), and achieved a maximum adsorption of 557.0 mg P/g. The adsorption process was well fitted by pseudo-second-order model (R2 > 0.962) and Sips model (R2 > 0.965), and it was endothermic (ΔH0 > 0) and spontaneous (Δ...

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Eggshell based biochar for highly efficient adsorption and recovery of phosphorus from aqueous solution: Kinetics, mechanism and potential as phosphorus fertilizer

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