Abstract: The use of granular activated carbon (GAC) columns to treat lead wastewaters was investigated. Synthetic wastewaters containing Pb (10 or 50 mg/ L), acetic acid (0.001 N) or EDTA (1:0.1 or 1:1 Pb:EDTA molar ratios) were ...

Abstract: Granular activated carbon (GAC) columns that were used for Pb removal were regenerated using several regeneration schemes. Acid type (HCl and HNO