Article Per Year (5 Year)
p-Index From 2021 - 2026
0.23
P-Index
This Author published in this journals
All Journal Journal Of Chemical Process Engineering
Riezky Gusti Fadhlillah
Department of Chemical Engineering, Faculty of Engineering, Universitas Gadjah Mada
Aerospace Engineering Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Engineering

Published : 1 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 1 Documents
Search

 1 
Effect of Hydrogen Peroxide Addition Method on Fenton Oxidation of Sugarcane Vinasse Nindia Noor Indah; Riezky Gusti Fadhlillah; Amani Salsabil Husodo
Journal of Chemical Process Engineering Vol. 11 No. 1 (2026): Journal of Chemical Process Engineering
Publisher : Fakultas Teknologi Industri - Universitas Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33096/jcpe.v11i1.2317

Abstract

Vinasse, a highly polluting byproduct generated during ethanol production, exhibited a very high chemical oxygen demand (COD) of 132,000 mg/L, making its treatment a critical environmental challenge. To reduce COD levels in vinasse, the Fenton process was employed in this study. The experiments were carried out for 1 hour in batches at atmospheric pressure and ambient temperature. The chemical reagents used for the reaction consisted of a 50% H₂O₂ solution and Fe(NO₃)₃·9H₂O, with the key variable being the H₂O₂ addition method of direct addition (one-shot, 80 mL at t=0) and stepwise (gradually, 20 mL aliquots at t=0, 10, 20, 30 min). Samples were collected every 10 minutes for COD analysis. While both dosing methods demonstrated time-dependent COD removal, the stepwise addition proved to be significantly more efficient, achieving a maximum measured removal of 57.39% compared to 39.12% for the direct H2O2 addition method. Furthermore, biphasic kinetic modeling showed that the direct addition of H₂O₂ exhibited a rapid initial oxidation phase (k1=0.0925 min⁻¹) followed by a slower and almost stagnant phase (k2=0.0005 min⁻¹). In contrast, the stepwise addition resulted in a lower but more sustained degradation rate (k1=0.0246 min⁻¹; k2≈0 min⁻¹), indicating a more uniform oxidation behavior under stepwise oxidant loading. 
Co-Authors Amani Salsabil Husodo Nindia Noor Indah