Treatment of arsenic in acid wastewater and river sediment by Fe@Fe2O3 nanobunches: The effect of environmental conditions and reaction mechanism

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成果类型：

期刊论文

作者：

Tang, Lin*;Feng, Haopeng;Tang, Jing;Zeng, Guangming*;Deng, Yaocheng;...

通讯作者：

Tang, Lin;Zeng, Guangming

作者机构：

[Zeng, Guangming; Wang, Jiajia; Feng, Haopeng; Deng, Yaocheng; Tang, Lin; Tang, Jing; Liu, Yani; Tang, L; Zeng, GM] Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China.

[Zeng, Guangming; Wang, Jiajia; Feng, Haopeng; Deng, Yaocheng; Tang, Lin; Tang, Jing; Liu, Yani] Hunan Univ, Key Lab Environm Biol & Pollut Control, Changsha 410082, Hunan, Peoples R China.

[Zhou, Yaoyu] Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Hunan, Peoples R China.

通讯机构：

[Tang, L; Zeng, GM] H

Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China.

语种：

英文

关键词：

*Adsorption;*Arsenic treatment;*Core-shell structure;*Fe@Fe(2)O(3) nanobunches;*Oxidation;*Zero valent iron

期刊：

Water Research

ISSN：

0043-1354

年：

2017

卷：

117

页码：

175-186

DOI：

10.1016/j.watres.2017.03.059

基金类别：

The study was financially supported by Projects 51579096, 51521006, 51222805, 51508175 and 51409024 supported by National Natural Science Foundation of China, the National Program for Support of Top–Notch Young Professionals of China (2012), and the Program for New Century Excellent Talents in University from the Ministry of Education of China (NCET–11–0129).

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本校为其他机构

院系归属：

资源环境学院

摘要：

High concentration of arsenic in acid wastewater and polluted river sediment caused by metallurgical industry has presented a great environmental challenge for decades. Nanoscale zero valent iron (nZVI) can detoxify arsenic-bearing wastewater and groundwater, but the low adsorption capacity and rapid passivation restrict its large-scale application. This study proposed a highly efficient arsenic treatment nanotechnology, using the core-shell Fe@Fe2O3nanobunches (NBZI) for removal of arsenic in acid wastewater with cyclic stability and transformation of arsenic speciation in sediment. The adsor...

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Treatment of arsenic in acid wastewater and river sediment by Fe@Fe2O3 nanobunches: The effect of environmental conditions and reaction mechanism

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