| Title |
A characterisitics study for Fenton - like oxidation in Fe°/H2O2 system |
| Authors |
장윤영(Yoon Young Chang),정동철(Dong Chul Chung),정민정(Min Jung Chung),최상일(Sang Il Choi) |
| Abstract |
Iron in Fenton`s oxidation can catalyze the decomposition of hydrogen peroxide and increase the oxidation of organics. Fenton-like oxidation of phenol was studied using hydrogen peroxide in combination with zero-valent iron substituted for ferrous iron in Fenton`s reaction. Batch tests were performed at room temperature and pressure in the absence of pH adjustment. The degradation of phenol in Fe°/H₂O₂ system was enhanced with the addition of iron powder, appearing to follow first-order reaction. And the rate constant (k`_p) of phenol degradation was remarkably increased from 0.0011 to 0.0097 min^(-1)(g/L)^(-1) by the acid treatment of the iron powder. The decomposition rate of hydrogen peroxide in the presence of iron powder also showed first-order reaction with increase of iron concentration, which shows iron powder to act as a catalyst for the activation of hydrogen peroxide and owing to this for the oxidation of phenol. This study indicates that the addition of zero-valent iron instead of ferrous iron in Fenton`s reaction is a feasable alternative in the treatment of wastewater containing refractory organic pollutants. |