水利水电技术(中英文)2025,Vol.56Issue(4):158-166,9.DOI:10.13928/j.cnki.wrahe.2025.04.013
砷、汞在水位波动带中迁移转化规律的试验研究
Experimental study on the migration and transformation patterns of arsenic and mercury in water level fluctuation zone
摘要
Abstract
[Objective]Understanding the migration and transformation patterns of contaminants in the groundwater level fluctuation zone is crucial for uncovering the root causes of groundwater pollution.[Methods]Based on the theory of groundwater solute transport,soil column simulation experiments were conducted to investigate the migration and transformation patterns of arsenic and mercury under different water level fluctuation amplitudes(ΔH=0 cm,10 cm,20 cm)in the water level fluctuation zone.[Results]The results showed that the variation amplitude of total arsenic and As(Ⅴ)concentrations in soil solution at sampling points followed the same trend as the water level fluctuation amplitudes,with an overall performance of column 3(ΔH=20 cm)>column 2(ΔH=10 cm).However,the concentration of mercury in the soil solution was not affected by the water level fluctuation and showed an overall increasing trend.[Conclusion]The result indicate that the periodic fluctuation of the water level mainly affects the characteristics of key environmental factors in the medium of the fluctuation zone,which in turn impacts the migration and transformation patterns of arsenic in this zone.The amplitude of water level fluctuation is positively correlated with the degree of this effect.Therefore,in groundwater arsenic pollution risk assessments,the impact of groundwater level fluctuation on arsenic migration should not be overlooked.关键词
水位波动/波动幅度/水环境/砷/汞/迁移转化Key words
water level fluctuation/fluctuation amplitude/water environment/arsenic/mercury/migration and transformation分类
环境科学引用本文复制引用
赵润苛,张永波,李京玲,时红,郑强..砷、汞在水位波动带中迁移转化规律的试验研究[J].水利水电技术(中英文),2025,56(4):158-166,9.基金项目
国家重点研发计划(2018YFC0406403) (2018YFC0406403)
山西省青年基金项目(202303021222011) (202303021222011)
山西省应用基础研究计划项目(20210302123192) (20210302123192)
山西省基础研究计划项目(202303021211048、201901D111059) (202303021211048、201901D111059)