A review of reactive media within permeable reactive barriers for the removal of heavy metal(loid)s in groundwater: Current status and future prospects

Groundwater contamination with heavy metal (loid)s occurs worldwide. Permeable reactive barriers (PRBs) have been widely accepted as an alternative to traditional ex-situ removal technologies for sustainable in-situ remediation of heavy metal (loid) contaminated groundwater. Reactive media play a key role in efficiently removing target metal (loid) ions with PRBs. The past few decades have seen the rapid development of reactive media within PRBs...