Effects of biochar layer position on treatment performance and microbial community in subsurface flow constructed wetlands for removal of cadmium and lead

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成果类型：

期刊论文

作者：

Sha, Haichao;Song, Xin;Al-Dhabi, Naif Abdullah;Zeng, Taotao;Mao, Yuemei;...

通讯作者：

Zeng, TT

作者机构：

[Mao, Yuemei; Fu, Yusong; Sha, Haichao; Song, Xin; Zeng, TT; Zeng, Taotao; Wang, Guohua; Liu, Zheng] Univ South China, Hunan Prov Key Lab Pollut Control & Resources Reus, Hengyang 421001, Hunan, Peoples R China.

[Al-Dhabi, Naif Abdullah] King Saud Univ, Coll Sci, Dept Bot & Microbiol, POB 2455, Riyadh 11451, Saudi Arabia.

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

[Tang, Wangwang] Hunan Univ, Key Lab Environm Biol & Pollut Control, Minist Educ, Changsha 410082, Hunan, Peoples R China.

通讯机构：

[Zeng, TT ] U

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

语种：

英文

关键词：

Biochar;Constructed wetland;Heavy metal;Microbial community;Soil

期刊：

Bioresource Technology

ISSN：

0960-8524

年：

2024

卷：

394

页码：

130194

DOI：

10.1016/j.biortech.2023.130194

基金类别：

CRediT authorship contribution statement Haichao Sha: Writing – original draft, Software, Investigation, Data curation. Xin Song: Investigation, Data curation. Naif Abdullah Al-Dhabi: Writing – review & editing, acquisition. Taotao Zeng: Writing – review & editing, Supervision, Methodology, acquisition, Formal analysis, Data curation. Yuemei Mao: Investigation. Yusong Fu: Investigation. Zheng Liu: Investigation. Guohua Wang: Writing – review & editing, Conceptualization. Wangwang Tang: Writing – review & editing.

机构署名：

本校为第一且通讯机构

院系归属：

土木工程学院

摘要：

Levels of cadmium (Cd) and lead (Pb) correspond to common composition in acid mine wastewater of Hunan Province of China. The removal path of Cd and Pb and the structure of microbial community were investigated by developing constructed wetlands (CWs) with different layer positions of biochar. The biochar as a layer at the bottom of CW (BCW) system exhibited maximum Cd and Pb removal efficiencies of 96.6-98.6% and 97.2-98.9%, respectively. Compared with original soil, BCW increased the relative proportions of Proteobacteria, Firmicutes, Acidobacteriota, Verrucomicrobiota, Desulfobacterota, Arm...

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Effects of biochar layer position on treatment performance and microbial community in subsurface flow constructed wetlands for removal of cadmium and lead

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