DEPURATION STUDIES ON KADUNA REFINERY WASTEWATER USING MODIFIED Cu-DOPED GOETHITE CATALYST

📄 Project Abstract

Undoped and copper doped goethite catalysts weresynthesized and applied in Fenton depuration of Kaduna refinery wastewater. The percentage of copper in the doped catalysts are 0.2 wt% copper in Cu-doped (A), 1.6 wt% copper in Cu-doped (B) and 3.3 wt% copper in Cu-doped (C), respectively. Characterization of the catalysts were done using X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Atomic Absorption Spectrophotometer (AAS) and Surface Area Analysis. An experimental design matrix was used to evaluate the individual and combined effects of the process variables. Response surface methodology (RSM) was applied with a central composite design (CCD), and modelswere developed. The optimal conditions are pH of 3, 360 minutes reaction time, catalyst loading of 55mg/L and hydrogen peroxide dosage of 1.1g/L.Astonishingly, appreciable depuration percentage was achieved at near neutral pH, 67.44% was achieved by the undoped goethite catalyst, 79%, 82.56% and 83.72% were achieved by t...