Ultrasonic assisted activation of persulfate for the treatment of spent porous biochar: Degradation of adsorbed PFOA and adsorbent regeneration

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成果类型：

期刊论文

作者：

Deng, Jiaqin*;Fang, Ying;Hou, Changlan;Zhang, Yanru;Li, Meifang;...

通讯作者：

Deng, Jiaqin;Hu, XJ

作者机构：

[Tang, Chunfang; Hu, Xinjiang; Han, Jianing; Li, Meifang; Deng, Jiaqin; Du, Wanxuan; Deng, JQ] Cent South Univ Forestry & Technol, Coll Environm Sci & Engn, Changsha 410004, Peoples R China.

[Deng, Jiaqin; Zhang, Yanru] Hunan Acad Forestry, State Key Lab Utilizat Woody Oil Resource, Changsha 410004, Peoples R China.

[Fang, Ying] Cent South Univ, Coll Chem & Chem Engn, Changsha 410083, Peoples R China.

[Hou, Changlan] Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Peoples R China.

通讯机构：

[Hu, XJ ; Deng, JQ] C

Cent South Univ Forestry & Technol, Coll Environm Sci & Engn, Changsha 410004, Peoples R China.

语种：

英文

关键词：

Perfluorooctanoic acid;Porous biochar;Ultrasonic;Persulfate;Regeneration;Degradation

期刊：

Journal of Environmental Chemical Engineering

ISSN：

2213-3437

年：

2023

卷：

期：

页码：

111146

DOI：

10.1016/j.jece.2023.111146

基金类别：

National Natural Science Foundation of China [52100185, 52100205, 51979294]; Natural Science Foundation of Hunan Province [2021JJ40282, 2022JJ40211, 2023JJ41049, 2023JJ31011]; Education Department of Hunan Province [22B0271]

机构署名：

本校为第一且通讯机构

院系归属：

环境科学与工程学院

摘要：

In this work, the regeneration of spent biochar adsorbent and the degradation of adsorbed PFOA by the system of ultrasonic assisted activation of persulfate were explored. The effects of ultrasound, persulfate and biochar on PFOA removal were investigated through a series of regeneration and degradation experiments. Meanwhile, the degradation mechanism and reaction pathways of PFOA were investigated with electron paramagnetic resonance (EPR) and high-resolution quadrupole orbitrap mass spectrometer. The results showed that PFOA adsorbed by biochar could be degraded efficiently with the synergi...

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Ultrasonic assisted activation of persulfate for the treatment of spent porous biochar: Degradation of adsorbed PFOA and adsorbent regeneration

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