Speciation, leachability, and phytoaccessibility of heavy metals during thermochemical liquefaction of contaminated peanut straw

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作者信息关键词期刊信息基础信息归属信息摘要

成果类型：

期刊论文

作者：

Zheng, Xiaochen;Zou, Dongsheng;Wu, Qingdan;Zhang, Liqing;Tang, Jialong;...

通讯作者：

Xiao, ZH

作者机构：

[Xiao, Zhihua; Wu, Qingdan; Liu, Fen; Zheng, Xiaochen; Xiao, ZH; Zou, Dongsheng; Tang, Jialong] Hunan Agr Univ, Coll Environm & Ecol, Changsha 410128, Hunan, Peoples R China.

[Xiao, Zhihua; Wu, Qingdan; Liu, Fen; Zheng, Xiaochen; Zou, Dongsheng; Tang, Jialong] Key Lab Rural Ecosyst Hlth Dongting Lake Area Huna, Changsha 410128, Peoples R China.

[Zhang, Liqing] Moutai Inst, Renhuai 564507, Guizhou, Peoples R China.

[Liu, Fen] Hunan Agr Univ, Coll Biosci & Biotechnol, Changsha 410128, Hunan, Peoples R China.

通讯机构：

[Xiao, ZH ] H

Hunan Agr Univ, Coll Environm & Ecol, Changsha 410128, Hunan, Peoples R China.

语种：

英文

关键词：

Carbon neutrality;Environmental risk;Ethanol;Oilseed crop;Phytoremediation;Thermal treatment

期刊：

Waste Management

ISSN：

0956-053X

年：

2024

卷：

176

页码：

20-29

DOI：

10.1016/j.wasman.2024.01.024

基金类别：

National Natural Science Foundation of China [42107435]; National Key Research and Development Pro- grams of China [2022YFD1700100]; Key Research and Development Programs of Hunan [2020NK2011, 2021NK2012]; Key Project Science Foundation of Hunan Education Department, China [21A0143, S202210537011]

机构署名：

本校为第一且通讯机构

院系归属：

生物科学技术学院

摘要：

In this study, the speciation, leachability, phytoaccessibility, and environmental risks of heavy metals (Cd, Zn, and Cu) during liquefaction of contaminated peanut straw in ethanol at different temperatures (220, 260, 300, 340, and 380 degrees C) were comprehensively investigated. The results showed that elevated temperatures facilitated heavy metal accumulation in the biochar. The acid-soluble/exchangeable and reducible fraction percentages of heavy metals were substantially reduced in the biochar after liquefaction as the temperature increased, and the oxidizable fraction became the dominan...

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Speciation, leachability, and phytoaccessibility of heavy metals during thermochemical liquefaction of contaminated peanut straw

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