数字农科院2.0

Passivation remediation of weakly alkaline Cd-contaminated soils using combined treatments of biochar and sepiolite

文献类型： 外文期刊

作者： Zhang Y.;Gao S.;Jia H.;Sun T.;Zheng S.;Wu S.;Sun Y.

作者机构：

关键词： Cd;Maize;Passivation restoration;Rice husk biochar;Sepiolite;Weakly alkaline soil

期刊名称： Ecological Processes

ISSN： 2192-1709

年卷期： 2024 年 13 卷 1 期

页码：

收录情况： SCIE（2024版） ; ; EI（2024版） ; ; 科技核心（2024版）

摘要： Background: Cadmium (Cd) pollution in agricultural soils has become a priority environmental concern globally. A reasonable application of passivators is critical to address the problem. In this study, we examined the remediation effects of rice husk biochar (rBC) and sepiolite (Sep) as single and combined (rBC + Sep) treatments on Cd pollution in a weakly alkaline soil using three maize cultivars (Liyu 16, Zhengdan 958, and Sanbei 218) as test crops. We also explained the mechanisms involved in the remediation effects. Results: The pseudo-second-order kinetic equation and Langmuir model could well describe the adsorption process of rBC + Sep for Cd2+. Compared with the control treatment (CK), soil available Cd concentration decreased by 29.51–36.34% under rBC + Sep treatment (p< 0.05) and the Cd concentrations in maize grains of Liyu 16, Zhengdan 958, and Sanbei 218 decreased by 38.08–47.85%, 37.25–45.61%, and 33.96–46.15%, respectively (p< 0.05). Following passivation treatment, soil available Cd concentration decreased and gradually changed from the exchangeable and carbonate binding forms to the Fe/Mn oxide and residual forms. The bioconcentration factors of Liyu 16 (0.05–0.09) and Sanbei 218 (0.05–0.09) were lower than those of Zhengdan 958 (0.07–0.13). In addition, rBC +Sep treatment increased soil pH and soil electrical conductivity, but the differences were not significant (p> 0.05). Conclusions: The application of 0.2% rBC + 0.5% Sep composite passivation material to weakly alkaline Cd-contaminated soil can effectively reduce the Cd concentration of soil and maize. © 2024, The Author(s).

分类号：

  • 相关文献

[1]Evaluation of Biochar, Sepiolite, and Their Composites for Immobilization Remediation of Cadmium Contamination Soil: Insights From Batch Experiments and Field Trials. Chao Wang,Shan Gao,Tao Sun,Shihang Wu,Yuebing Sun,Hongtao Jia. 2025

[2]DissectingthemaizedirectandindirectdefenseresponseagainstAsianCornBorer. 汪海,李圣彦,查象敏,朱莉,黄大昉,郎志宏. 2015

[3]TheDifferentialTranscriptionNetworkbetweenEmbryoandEndospermintheEarlyDevelopingMaizeSeed. XiaoduoLu,DijunChen,DefengShu,ZhaoZhang,WeixuanWang,ChristianKlukas,Ling-lingChen,YunliuFan,MingChen,ChunyiZhang. 2015

[4]Biochar derived from rice husk: Impact on soil enzyme and microbial dynamics, lettuce growth, and toxicity. Akumuntu A.,Hong J.-K.,Jho E.H.,Omidoyin K.C.,Park S.-J.,Zhang Q.,Zhao X.. 2024

[5]Endogenous silicon-activated rice husk biochar prepared for the remediation of cadmium-contaminated soils: Performance and mechanism. Tao Lu,Wenzhan Ge,Anyu Li,Shengjun Deng,Tao Min,Guohong Qiu. 2024

[6]Independent and combined effects of sepiolite and palygorskite on humus spectral properties and heavy metal bioavailability during chicken manure composting. Shihang Wu,Dina Tursenjan,Yuebing Sun. 2023

[7]Performance and mechanisms of immobilization remediation for Cd contaminated water and soil by hydroxy ferric combined acid-base modified sepiolite (HyFe/ABsep). Lin, Dasong,Wang, Lin,Sun, Yuebing,Wang, Lin,Zheng, Shunan,Xie, Sha,Xie, Sha,Xu, Yingming,Sun, Yuebing,Lin, Dasong. 2020

[8]Synergistic removal of As(III) and Cd(II) by sepiolite-modified nanoscale zero-valent iron and a related mechanistic study. Ainiwaer M.,Zhang T.,Zhang N.,Yin X.,Su S.,Wang Y.,Zhang Y.,Zeng X.. 2022

[9]Phosphate fertilizers facilitated the Cd contaminated soil remediation by sepiolite: Cd mobilization, plant toxicity, and soil microbial community. Rong Huang,Yanqiong Li,Feng Li,Xiuling Yin,Ran Li,Zhimin Wu,Xuefeng Liang,Zhian Li. 2022

[10]Effects of water-organic fertilizer coupling on immobilization remediation technology using sepiolite. Liu, Yiyun,Xu, Yingming,Huang, Qingqing,Qin, Xu,Zhao, Lijie,Liang, Xuefeng,Wang, Lin,Sun, Yuebing. 2022

[11]Ball-milled sepiolite/phosphate rock for simultaneous remediation of cadmium-contaminated farmland and alleviation of phosphorus deficiency symptoms in pepper. Jianhua Qu,Yuhui Li,Hebang Sun,Ruixin Liu,Yue Han,Fuxuan Bi,Hongli Fan,Guosheng Zhang,Yupeng Zhang,Yifan Wang,Weidong Cao,Ying Zhang. 2024

[12]鸡粪生物炭表征及其对水和土壤镉铅的修复效果. 闫翠侠,贾宏涛,孙涛,迪娜·吐尔生江,罗文文,谢厦,孙约兵. 2019

[13]废弃冶炼厂重金属镉向周边的扩散及其风险评价. 图雅日拉,黄道友,许超,曾希柏,苏世鸣,王亚男,白玲玉. 2019

[14]利用AMMI模型分析稻米镉含量的基因型与环境互作效应. 温娜,王景安,刘仲齐. 2015

[15]天津郊区土壤-蔬菜系统中Cd的积累特征及污染风险. 师荣光,周启星,刘凤枝,赵玉杰,郑向群,张浩. 2008

[16]土壤PbCd污染的植物效应Ⅱ——Cd污染对水稻生长和Cd含量的影响. 郑春荣,孙兆海,周东美,刘凤枝,陈怀满. 2004

[17]CO_2浓度升高对重金属污染下稻米品质影响的研究进展. 王潇,宋正国,武慧斌,邹洪涛. 2013

[18]三种类型阻控剂对不同品种水稻富集镉的影响. 龙思斯,杨益新,宋正国,雷鸣,杨勇,蒋宏芳,喻理,沈跃,周爽. 2016

[19]化学调控作用对CdPbCu复合污染菜地土壤中重金属形态和植物有效性的影响. 徐应明,林大松,吕建波,贾堤. 2006

[20]两种改性剂对油菜吸收CdPb和Cu的影响. 吕建波,徐应明,贾堤,林大松. 2005

作者其他论文 更多>>