铁改性生物炭对土壤-水稻系统中砷有效性和迁移的影响（英文）

被引：10

作者：

钱子妍 ^{[1
]}

薛生国 ^{[1
]}

崔梦倩 ^{[1
]}

吴川 ^{[1
]}

李伟展 ^{[2
]}

机构：

[1] School of Metallurgy and Environment Central South University

[2] Department of Science and Environmental Studies the Education University of Hong

来源：

Journal of Central South University | 2021年 / 28卷 / 06期

关键词：

砷; 水稻; 铁改性生物炭; 铁膜; 形态; 吸收;

D O I：

暂无

中图分类号：

X53 [土壤污染及其防治];

学科分类号：

082803 ; 120405 ;

摘要：

铁改性生物炭(Fe OS)能有效地促进土壤中砷的固定。本文通过盆栽实验研究了铁改性生物炭对砷在土壤-水稻系统中有效性和迁移的影响。本实验研究了不同砷污染水平下,施用铁改性生物炭对水稻土壤溶液、铁膜中砷和铁的含量的影响,以及对水稻根、茎生物量和砷积累量的影响。结果表明,施用铁氧化物提高了土壤溶液中铁的浓度,降低了砷的浓度;特别是在120 mg/kg As处理中,添加0.5%和1%Fe OS后,成熟期砷浓度分别降低16.46%和30.56%。与对照相比,施用Fe OS降低了水稻组织中的砷含量,增加了水稻根和茎的生物量。添加1%Fe OS后,水稻根系生物量增加12.68%,地上部生物量增加8.94%。这可能与Fe OS的添加促进了铁膜形成和微生物群落结构的转变有关,与本实验中土壤的铁砷相关基因丰度和铁膜的铁含量所呈现的结果一致。该研究可为Fe OS在砷污染水稻土修复中的应用提供进一步的支持和理论依据。

引用

页码：1901 / 1918

页数：18

共 32 条

[1] 铬解毒机制诱导香根草的生长和抗氧化反应（英文） [J].

Manikdanan RAJENDRAN ;

安文慧 ;

李伟展 ;

Venkatachalam PERUMAL ;

吴川 ;

Shivendra Vikram SAHI ;

Santosh Kumar SARKAR .

Journal of Central South University, 2019, 26 (02) :489-500

[2]

The effects of biochar as the electron shuttle on the ferrihydrite reduction and related arsenic (As) fate[J] . Chuan Wu,Wenhui An,Ziyu Liu,Jun Lin,Ziyan Qian,Shengguo Xue.Journal of Hazardous Materials . 2020

[3]

Effect of sulfur and sulfur-iron modified biochar on cadmium availability and transfer in the soil–rice system[J] . Manikandan Rajendran,Lizheng Shi,Chuan Wu,Waichin Li,Wenhui An,Ziyu Liu,Shengguo Xue.Chemosphere . 2019

[4]

Effect of sulfur-iron modified biochar on the available cadmium and bacterial community structure in contaminated soils[J] . Chuan Wu,Lizheng Shi,Shengguo Xue,Waichin Li,Xingxing Jiang,Manikandan Rajendran,Ziyan Qian.Science of the Total Environment . 2019

[5]

Effect of dissolved organic carbon from sludge, Rice straw and spent coffee ground biochar on the mobility of arsenic in soil[J] . Hye-Bin Kim,Seon-Hee Kim,Eun-Ki Jeon,Do-Hyung Kim,Daniel C.W. Tsang,Daniel S. Alessi,Eilhann E. Kwon,Kitae Baek.Science of the Total Environment . 2018

[6] Remediation of arsenic-contaminated paddy soil by iron-modified biochar [J].

Wu, Chuan ;

Cui, MengQian ;

Xue, ShengGuo ;

Li, WaiChin ;

Huang, Liu ;

Jiang, XingXing ;

Qian, ZiYan .

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2018, 25 (21) :20792-20801

[7] Pollution characteristics of surface runoff under different restoration types in manganese tailing wasteland [J].

Wang, Jun ;

Cheng, Qingyu ;

Xue, Shengguo ;

Rajendran, Manikandan ;

Wu, Chuan ;

Liao, Jiaxin .

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2018, 25 (10) :9998-10005

[8] Mineralogical Controls on the Bioaccessibility of Arsenic in Fe(III)-As(V) Coprecipitates [J].

Ehlert, Katrin ;

Mikutta, Christian ;

Jin, Yuan ;

Kretzschmar, Ruben .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2018, 52 (02) :616-627

[9]

Oxic and anoxic conditions affect arsenic (As) accumulation and arsenite transporter expression in rice[J] . Chuan Wu,Liu Huang,Sheng-Guo Xue,Wei-Song Pan,Qi Zou,William Hartley,Ming-Hung Wong.Chemosphere . 2017

[10]

Effect of silicate on arsenic fractionation in soils and its accumulation in rice plants[J] . Chuan Wu,Qi Zou,Sheng-Guo Xue,Wei-Song Pan,Xu Yue,William Hartley,Liu Huang,Jing-Yu Mo.Chemosphere . 2016

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