Fenton process for the treatment of wastewater effluent from the edible oil industry

Abstract

The present study intends to investigate the performance of the Fenton reaction as one of the most efficient (AOPs) in a batch mode for treating wastewater effluent from the edible oil industry, as well as the parameters that influence the reaction, such as pH, hydrogen peroxide (H2O2), and ferrous sulfate heptahydrate (FeSO4.7H2O) doses at various reaction times. The response surface methodology (RSM) was applied with a central composite design (CCD) for optimizing the responses of pollutant removals. The obtained results indicated that the authenticated response to the chemical oxygen demand (COD) removal was 93.52%, at optimum values of pH, FeSO4.7H2O dose, H2O2 dose, and reaction time of 3, 1 g/L, 8.38 g/L, and 50 minutes, respectively. Furthermore, the authenticated response to oil and grease (O&G) removal was 99.8%, at optimum values of pH, FeSO4.7H2O dose, H2O2 dose, and reaction time of 3, 0.71 g/L, 8.7 g/L, and 37.4 minutes, respectively. Under these conditions, the residual COD and O&G after Fenton oxidation become 155.4 mg/L, and 10 mg/L, respectively.

The RSM‐CCD Optimization of Fenton Process for Industrial Wastewater Treatment and Determination of Treatment Efficiency Using Some Biochemical Responses in Dreissena polymorpha

“…Statistical analysis concluded that FeSO 4 is more important than H 2 O 2 in removing certain organic materials; however, H 2 O 2 plays a more significant role than FeSO 4 in removing effluents. [27] In a study by Ayoub et al (2022), the performance of the Fenton reaction was suggested as one of the most efficient advanced oxidation processes (AOPs) in batch mode for treating wastewater from the edible oil industry. The research- ers investigated parameters affecting the reaction, applying central composite design (CCD) and response surface methodology (RSM) to optimize contaminant removal responses.…”

Determining Conditions for the Fenton Reaction through Spectroscopy of FeSCN2+ and Methyl Orange

“…One area where the Fenton reaction is used beneficially is the treatment of wastewater. Fenton reaction is often used to treat "oily wastewater" which is water that contains fats and greases (Ayoub, 2022). Hydroxyl radicals are able to degrade the organic pollutants and effectively remove the oils and other harmful molecules from the wastewater.…”

Hydrothermal Synthesis of Mixed Oxide Compositions of Cobalt‐Zirconium and their Catalytic Activity in the Decomposition of Hydrogen Peroxide

“…[8][9][10] But the high cost of Pt and metals of this group makes to look for more affordable materials to meet the needs of the industry. Famous Fenton process, which is the decomposition of hydrogen peroxide under the action of iron salts, which can be described by Equation ( 1): [7,[11][12][13][14][15][16]…”

“…But the high cost of Pt and metals of this group makes to look for more affordable materials to meet the needs of the industry. Famous Fenton process, which is the decomposition of hydrogen peroxide under the action of iron salts, which can be described by Equation : [7,11–16] $$$\vcenter{\openup.5em\halign{$\displaystyle{#}$\cr {\rm Fe}{^{2+}}+{\rm H}{_{2}}{\rm O}{_{2}}\rightarrow {\rm Fe}{^{3+}}+{\rm OH}{^{\bullet}}+{\rm OH}{^{- . }}\hfill\cr}}$$$ …”