A electrodynamic coupled circulation well remediation technique was proposed,with chromate ions as the typical target contaminant.The effectiveness and removal patterns of this technique on groundwater pollution in low-permeability aquifers were investigated.Compared to conventional circulation well techniques,the electrodynamic coupled circulation well technique expanded the remediation radius by 1.25 times,eliminated the remediation blind zone(from 35.56％to 0),and increased the pollutant removal rate from 76.01％to 90.56％.Additionally,the electrodynamic power consumption was reduced by three orders of magnitude compared to electrodynamic remediation techniques,resulting in a higher pollutant removal rate,potentially doubling or tripling the efficiency.This technology coupled with the electric power method realizes the enhanced directional migration of charged ion components in low-permeability aquifers,solves the problems of low mass transfer efficiency,small repair range,and hydraulic circulation blind spots in circulation wells in low-permeability aquifers,and significantly improves the restoration effect.
关键词
低渗透含水层/电动力修复/循环井技术/地下水污染修复/铬酸盐
Key words
low-permeability aquifer/electrodynamic remediation/circulating well technology/groundwater pollution remediation/chromate
维普
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