Using Alkali-Modified Fly Ash/Fe3O4/CuO Nano-Composite for Heterogeneous Fenton Treatment of Denim Industry Wastewater
8th International Conference on Environmental Science and Technology (ICOEST), İstanbul, Turkey, 18 - 22 May 2022, pp.12-19, (Full Text)
- Publication Type: Conference Paper / Full Text
- City: İstanbul
- Country: Turkey
- Page Numbers: pp.12-19
- Van Yüzüncü Yıl University Affiliated: Yes
Abstract
This study aims to use Alkali-Modified Fly Ash/Fe3O4/CuO nanocomposite for COD removal from
denim industry wastewater with Heterogeneous Fenton oxidation. The characterization of the
catalyst was made before and after the Heterogeneous Fenton process with Fourier Transform
Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy (SEM). The synthesized catalyst has a
weight ratio for Fe and Cu of % 39.32 and 16.39 %. According to the FTIR results, Fe3O4 and CuO
nanoparticles were successfully doped to the alkali-modified fly ash. The operational parameters
such as initial wastewater pH (2.5-8.5), H2O2 dosage (0.5-2 g/L), and catalyst dosage (0.5-2 g-L) were
investigated in a batch system. The optimum conditions were determined for pH, H2O2 and catalyst
dosage as 2.5, 2 g/L, and 2 g/L. Under optimum conditions, COD removal efficiency was calculated as
78.85%. The catalyst's performance was investigated for adsorption, H2O2, and the Heterogeneous
Fenton process. The dominant process was the Heterogeneous Fenton process, while adsorption
was a less effective process. The catalyst can be evaluated as a promising catalyst for the
pretreatment of denim industry wastewater with the heterogeneous Fenton process. It can be
developed to achieve more effective COD removal.