The main target behind this work is studying the synergistic returns of thermal treatment of Lead-rich sludge dust (LD) on fresh properties of alkali-activated geopolymer in addition to its adsorption performance towards the removal of methylene dye (MB) from aqueous media. According to TGA/DTGA analysis, the thermal treatment of received dust was at 500°C (TLD). Two geopolymeric pastes (Geo-LD an...