三维电场强化博落回修复铀污染土壤试验研究  

Experimental study of 3D electric field enhanced Macleaya cordata phytoremediation of uranium-contaminated soil

作　　者：刘骞 曾祥宇[1,2] 丁德馨 马建洪 Liu Qian;Zeng Xiangyu;Ding Dexin;Ma Jianhong(School of Resources Environment and Safety Engineering,University of South China;Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy,University of South China)

机构地区：[1]南华大学资源环境与安全工程学院 [2]南华大学铀矿冶生物技术国防重点学科实验室

出　　处：《黄金》2024年第8期112-116,共5页Gold

基　　金：湖南省自然科学基金项目(2021JJ40466)。

摘　　要：通过盆栽试验研究了三维电场对博落回修复铀污染土壤性能的强化作用。结果表明:与二维电场相比,三维电场与博落回耦合可使博落回地上和地下部分铀质量分数分别提高17.14%和43.3%,干生物量分别提高40.4%和37.6%,土壤中可交换态铀石比提高10百分点,改变了博落回体内铀的亚细胞分布,增加了铀在博落回体内的积累,促进铀向博落回细胞器内转移,其中茎部铀的转移更为明显。三维电场可进一步强化博落回对铀污染土壤的修复作用,是一种具有潜在应用前景的强化植物修复方法。In this study,pot experiments were utilized to investigate the impact of 3D electric fields on the efficacy of Macleaya cordata in remediating uranium-contaminated soil.The results indicated that compared with the 2D electric field,the coupling between the 3D electric field and Macleaya cordata could lead to an increase in uranium mass fraction in both the above-ground and underground parts of Macleaya cordata by 17.14%and 43.3%,and an increase in dry biomass by 40.4%and 37.6%,respectively.Additionally,the proportion of exchangeable uranium in the soil showed an increase of 10 percentage points.Meanwhile,the subcellular distribution of uranium within Macleaya cordata was altered,leading to increased uranium accumulation and transfer to organelles,particularly in the stems.These findings indicate that the 3D electric field can further improve the remediation performance of Macleaya cordata on uranium-contaminated soil,offering a promising approach for enhancing phytoremediation.

关 键 词：三维电场 植物修复 博落回 铀污染 土壤 生物修复 

分 类 号：TD167[矿业工程—矿山地质测量] X53[环境科学与工程—环境工程]