The use of metal hydroxide sludge ( and calcined) for the adsorption of brilliant blue dye in aqueous solution.

Industrial waste such as metal hydroxide sludge ( and calcined) from galvanic bath was evaluated as an adsorbent in the removal of brilliant blue synthetic dye (NB 180) in aqueous solution. The samples were characterised using X-ray fluorescence analysis (XRF), X-ray diffraction analysis (XRD), thermogravimetric analysis (TGA), infrared spectroscopy (FT-IR), as well as the specific surface area (BET) and the point of zero charge (pH). The effects of the conditions in relation to pH and adsorbent dosage were also investigated.