数字农科院2.0

Transpiration drive soil biogeochemical cycles to degrade petroleum hydrocarbons in plant-microbial electrochemical systems

文献类型： 外文期刊

作者： Xiaolin Zhang;Tian Li;Ruixiang Li;Wenqing Yan;Wenhan Wang;Guoliang Wang;Xiaojing Li

作者机构：

关键词： Long-distance remediation;Petroleum contamination;Plant transpiration;Soil ecology;Water circulation

期刊名称： Journal of Cleaner Production

ISSN： 0959-6526

年卷期： 2025 年 514 卷

页码：

收录情况： SCIE（2025版） ; ; EI（2025版）

摘要： The intrusion of petroleum into soil ecosystems causes severe environmental damage. A synergistic plant-microbe-electrochemical soil remediation technology offers a strategic and eco-friendly solution to address this issue. However, the significant mass transfer resistance in soil poses a major limitation for long-distance site remediation. This research introduces a novel technique that leverages water circulation driven by plant transpiration to facilitate the long-distance migration, adsorption, and electrochemical degradation of hydrocarbons. Experimental results demonstrate that the incorporation of Iris tectorum, polyurethane sponge (as an electrode support matrix), and water-retaining agents significantly enhanced soil water circulation, enabling the migration of soluble organic carbon over distances of up to 60 cm. Additionally, the application of a weak voltage (0.7 V) to the electrode further improved total organic carbon (TOC) removal, achieving a reduction of 193 ± 71 mg/L. After 42 days of remediation, hydrological circulation accelerated the degradation of n-alkanes and aromatics, with removal efficiencies reaching 57 % and 44 %, respectively, within the 20–60 cm range in the microbial electrochemical cell (MEC) group. The functional microbiota, enriched with electroactive microorganisms, was effectively cultivated on the anode, with the total abundance of potential hydrocarbon-degrading bacteria increasing by 42 % compared to the control. Furthermore, a scalable configuration has been proposed, offering a novel perspective for multidimensional ecological soil remediation strategies.

分类号：

  • 相关文献

[1]Interactions between Bt transgenic crops and arbuscular mycorrhizal fungi: a new urgent issue of soil ecology in agroecosystems. Du Lianfeng,Liu Wenke.

[2]Distinctive pattern and mechanism of precipitation changes affecting soil microbial assemblages in the Eurasian steppe. Minjie Xu,Xunzhi Zhu,Shiping Chen,Shuang Pang,Wei Liu,Lili Gao,Wei Yang,Tingting Li,Yuhan Zhang,Chun Luo,Dandan He,Zhiping Wang,Yi Fan,Xingguo Han,Ximei Zhang. 2022

作者其他论文 更多>>