Advances in the co-migration of colloids and pollutants during groundwater artificial recharge
Artificial recharge can effectively recharge groundwater aquifers and prevent seawater intrusion.However,the injection of recharge water will break the balance of the original groundwater's chemical field and kinetic field,resulting in the release of a large number of colloids from the solid-phase medium into the groundwater.Colloids can combine with pollutants due to their special physicochemical properties,thus significantly affecting the migration of pollutants in groundwater in the recharge area.This increases the risk of groundwater pollution.Therefore,the co-migration of colloids and pollutants during the groundwater artificial recharge process,including the adsorption mechanism and migration effect,as well as the affecting factors were discussed,which would provide implications for groundwater security,development of artificial recharge technology,and enviromental geology problems prevention and improvement.
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