交变电场对不同 pH 土壤中 Cd 污染植物修复的增强作用。
Effect of AC electric field on enhancing phytoremediation of Cd-contaminated soils in different pH soils.
机构信息
State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Zhejiang, 311300, Hangzhou, China.
Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A&F University, Zhejiang, 311300, Hangzhou, China.
出版信息
Sci Rep. 2024 Aug 4;14(1):18035. doi: 10.1038/s41598-024-68671-6.
To increase the efficiency of phytoremediation to clean up heavy metals in soil, assisted with alternating current (AC) electric field technology is a promising choice. Our experiments utilized the hyperaccumulator Sedum alfredii Hance and the fast-growing, high-biomass willow (Salix sp.). We investigated the efficiency of AC field combined with S. alfredii-willow intercropping for removing Cd from soils with different pH values. In the AC electric field treatment with S. alfredii-willow intercropping, the available Cd content in acidic soil increased by 50.00% compared to the control, and in alkaline soil, the increase was 100.00%. Furthermore, AC electric field promoted Cd uptake by plants in both acidic and alkaline soils, with Cd accumulation in the aboveground increased by 20.52% (P < 0.05) and 11.73%, respectively. In conclusion, the integration of AC electric fields with phytoremediation demonstrates significant favorable effectiveness.
为了提高植物修复技术去除土壤中重金属的效率，辅助以交流（AC）电场技术是一种很有前途的选择。我们的实验利用了超积累植物垂盆草（Sedum alfredii Hance）和生长迅速、生物量高的柳树（Salix sp.）。我们研究了交流电场与垂盆草-柳树间作对不同 pH 值土壤中去除 Cd 的效率。在 AC 电场处理与垂盆草-柳树间作中，与对照相比，酸性土壤中有效态 Cd 含量增加了 50.00%，而碱性土壤中增加了 100.00%。此外，AC 电场促进了植物在酸性和碱性土壤中对 Cd 的吸收，地上部分 Cd 积累分别增加了 20.52%（P < 0.05）和 11.73%。总之，将 AC 电场与植物修复相结合具有显著的有利效果。
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