数字农科院2.0

Waste Algae-Derived Biochar Composites for Synergistic Soil Cd–As Immobilization: Feasibility, Dose–Response Thresholds, and Mechanism

文献类型： 外文期刊

作者： Xue Zhou;Lianfang Li;Mengqi Kang

作者机构：

关键词： biochar;cadmium and arsenic;mechanism;synergistic immobilization;waste algae

期刊名称： Agronomy

ISSN：

年卷期： 2025 年 15 卷 12 期

页码：

收录情况： SCIE（2025版）

摘要： The antagonistic geochemical behaviors of cadmium (Cd) and arsenic (As) in co-contaminated soils complicate their simultaneous remediation. This study aimed to develop a synergistic immobilization strategy by converting Spirulina residue into a magnetic biochar-layered double hydroxide composite (FSRBL). The composite was applied to both acidic red and calcareous black soils, and its effects on Cd and As, immobilization efficiency, and ecotoxicity were evaluated. The results showed that FSRBL effectively transforms Cd and As from mobile fractions to stable residual forms. At a 2.5% application rate, FSRBL achieved remarkable immobilization efficiencies of 39.2% for Cd and 57.5% for As, representing effectiveness 3.55 and 5.97 times higher than that of unmodified biochar, respectively. A dose–response relationship between the application amount of FSRBL and the immobilization efficiency of As and Cd was observed and further quantified using a logistic model. The results indicate that while increased FSRBL application enhances immobilization efficiency, the marginal benefit of each additional unit diminishes as the application rate increases, demonstrating a significant diminishing marginal effect. According to the ecotoxicity assessment experiment, the soil leachate from FSRBL-amended soil remarkably decreased the ecological toxicity to rice (Oryza sativa L.). Mechanistic investigations employing SEM/TEM-EDS, XRD, and XPS revealed that the synergistic immobilization could be ascribed to the multi-component cooperation within FSRBL, which resolved the conflicting pH/Eh requirements for the immobilization of Cd and As: (1) the LDH phase efficiently immobilized As oxyanions through anion exchange and isomorphic substitution; (2) the magnetic Fe phase concurrently immobilized Cd2+ and As oxyanions via redox transformation and coprecipitation, resulting in the formation of precipitates such as Fe/Ca/Cd–As(V). This work demonstrates a feasible approach to upcycle biomass waste into a value-added material for sustainable remediation of Cd–As co-contaminated soil.

分类号：

  • 相关文献

[1]Effect of biochar on the mitigation of organic volatile fatty acid emission during aerobic biostabilization of biosolids and the underlying mechanism. Ma X.,Li S.,Pan R.,Wang Z.,Li J.,Zhang X.,Azeem M.,Yao Y.,Xu Z.,Pan J.,Zhang Z.,Li R.. 2023

[2]Micro-particle biochar for soil carbon pool management: Application and mechanism. Tianbao Ren,Jiayi Li,Huilin Feng,Fei Yun,Nan Chen,Huanhuan Wang,Quanyu Yin,Haobao Liu,Peter Nai Yuh Yek,Su Shiung Lam,Guoshun Liu. 2021

[3]Coconut shell and its biochar as fertilizer amendment applied with organic fertilizer: Efficacy and course of actions on eliminating antibiotic resistance genes in agricultural soil. Houyu Li,Xiaolong Wang,Lu Tan,Qian Li,Chunxue Zhang,Xiaocheng Wei,Qiang Wang,Xiangqun Zheng,Yan Xu. 2022

[4]Small microplastic particles promote tetracycline and aureomycin adsorption by biochar in an aqueous solution. Zhao, Shuwen,Zhang, Chuchen,Zhang, Qianru,Huang, Qilan. 2024

[5]黄金梨黑心病形成机理及防控技术研究. 王文辉,王志华,佟伟,张志云,姜修成,贾晓辉. 2008

[6]Ionomic and transcriptomic analysis provides new insight into the distribution and transport of cadmium and arsenic in rice. Feng, Xuemin,Han, Lei,Liu, Yan,Zhang, Yajing,Wang, Ruigang,Guo, Junkang,Feng, Renwei,Xu, Yingming,Ding, Yongzhen,Zhang, Guilong,Feng, Xuemin,Han, Lei,Liu, Yan,Zhang, Yajing,Wang, Ruigang,Guo, Junkang,Feng, Renwei,Xu, Yingming,Ding, Yongzhen,Zhang, Guilong,Chao, Daiyin,Huang, Biyan.

[7]Ionomic And Transcriptomic Analysis Provides N.ew Insight Into The D istribution And Transport Of Cadmium And Arsenic In Rice. Feng, XM, Han, L, Chao, DY, Liu, Y, Zhang, YJ, Wang, RG, Guo, JK, Feng, RW, Xu, YM, Ding, YZ, Huang, BY, Zhang, GL. 2017

[8]Transcriptome analyses of seed development in grape hybrids reveals a possible mechanism influencing seed size. Wang, Li,Hu, Xiaoyan,Jiao, Chen,Li, Zhi,Yan, Xiaoxiao,Wang, Yuejin,Wang, Xiping,Wang, Li,Hu, Xiaoyan,Li, Zhi,Yan, Xiaoxiao,Wang, Yuejin,Wang, Xiping,Jiao, Chen,Fei, Zhangjun,Liu, Chonghuai. 2016

[9]Enhanced removal of Microcystis aeruginosa in BDD-CF electrochemical system by simple addition of Fe2+. Long, Yujiao,Ni, Jinren,Li, Hongna,Xing, Xuan.

[10]Quantitative structure-toxicity relationship study of lethal concentration to tadpole (Bufo vulgaris formosus) for organophosphorous pesticides. Yan, Dongyun,Xu, Shaohui,Yan, Dongyun,Jiang, Xin,Bian, Yongrong,Yu, Guifen,Wang, Ligang.

[11]Inhibitory effect and mechanism of mesenchymal stem cells on liver cancer cells. Hou, Lingling,Wang, Xiaoyu,Zhou, Yaqiong,Ma, Haibin,Wang, Ziling,He, Jinsheng,Hu, Honggang,Guan, Weijun,Ma, Yuehui. 2014

[12]Rab3A is a new interacting partner of synaptotagmin I and may modulate synaptic membrane fusion through a competitive mechanism. Xie, Chunliang,Li, Jianglin,Guo, Tianyao,Yan, Yizhong,Tang, Cheng,Wang, Ying,Chen, Ping,Wang, Xianchun,Liang, Songping,Xie, Chunliang.

[13]Isolation and Identification of Potential Allelochemicals from Aerial Parts of Avena fatua L. and Their Allelopathic Effect on Wheat. Tian, Fajun,Tian, Yingying,Dong, Fengshou,Xu, Jun,Zheng, Yongquan,Tian, Fajun,Wu, Yanbing.

[14]Phosphomannose-isomerase (pmi) gene as a selectable marker for rice transformation via Agrobacterium. He, ZQ,Fu, YP,Si, HM,Hu, GC,Zhang, SH,Yu, YH,Sun, ZX.

[15]Analysis of differentially expressed proteins in zebrafish (Danio rerio) embryos exposed to chlorpyrifos. Liu, Lili,Xu, Yongxue,Xu, Lili,Wang, Jian,Wu, Wei,Xu, Lei,Yan, Yanchun,Xu, Yongxue. 2015

[16]Characterisation of spinosad resistance in the housefly Musca domestica (Diptera: Muscidae). Zhang, Lan,Gao, Xiwu,Zhang, Lan.

[17]Combined Systems Approaches Reveal a Multistage Mode of Action of a Marine Antimicrobial Peptide against Pathogenic Escherichia coli and Its Protective Effect against Bacterial Peritonitis and Endotoxemia. Wang, Xiumin,Teng, Da,Mao, Ruoyu,Yang, Na,Hao, Ya,Wang, Jianhua,Wang, Xiumin,Teng, Da,Mao, Ruoyu,Yang, Na,Hao, Ya,Wang, Jianhua.

[18]Chemical inducement of 2,4-dihyroxy-7-methoxy-1, 4-benzoxazin-3-one (DIMBOA) in wheat seedlings. Liu, Xingang,Yao, Jianren,Dong, Fengshou,Zhao, Yuan. 2008

[19]Engineered Bacillus thuringiensis GO33A with broad insecticidal activity against lepidopteran and coleopteran pests. Wang, Guangjun,Zhang, Jie,Song, Fuping,Wu, Jun,Feng, Shuliang,Huang, Dafang.

[20]Molecular and biochemical characterization of a distinct tyrosinase involved in melanin production from Aeromonas media. Wan, Xia,Chai, Baozhong,Liao, Yi,Ye, Tao,Shen, Ping,Chen, Xiangdong,Wan, Xia,Su, Ying.

作者其他论文 更多>>