Application of a hybrid Electrocoagulation-Fenton process in yarn dye wastewater: Kinetic study

2nd International Conference on Chemical Engineering (ICCE) UNPAR

Riadi, L.^1,2 ; Sapei, L.^1 ; Lidiawati, T.^1,2 ; Agustin, Y.E.^1

Chemical Engineering Department, University of Surabaya, Indonesia^1

Center for Environmental Studies, University of Surabaya, Jalan Raya Kalirungkut, Surabaya, Indonesia^2

关键词: Degradation process;    Dye wastewaters;    Electro coagulations;    Fenton process;    First order reactions;    Instantaneous reaction;    Kinetic constant;    Kinetic study;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/162/1/012026/pdf
DOI  :  10.1088/1757-899X/162/1/012026

来源: IOP

【 摘 要 】

Reactive dyes contain a significant portion of colorants used in yarn dying process and also in textile industry. Since the COD content is usually high in such wastewater,we conducted a hybrid electrocoagulation-fenton method to treat the wastewater. This work describes the application of the hybrid system to the removal of chemical oxygen demand and color from the wastewater in a batch reactor. Having worked with initial pH of 3,0; temperature at 30°C, molar ratio of Fe2+/H2O2=1/10 and the mol ratio H2O2/COD = 4, we got 88.3% COD conversion and 88.5% color removal. The COD degradation process can be explained in two phases, the first phase is instantaneous reaction and the second phase is first order reaction. The kinetic constant was 0.0053 minute-1 and the rate of COD degradation was 0.0053[COD] mg/L minute.