Fig. 3. Breakthrough curves of Cu when passed through untreated aquifer material and aquifer material that was treated with Na citrate–bicarbonate–dithionite to remove sesquioxides. Arrows indicate when the influent was switched to KClO4.
Fig. 3. Breakthrough curves of Cu when passed through untreated aquifer material and aquifer material that was treated with Na citrate–bicarbonate–dithionite to remove sesquioxides. Arrows indicate when the influent was switched to KClO4.