Degradation of Phenanthrene in Aqueous Solution using Fenton-like Oxidation and its Kinetic Analysis

In order to degrade phenanthrene in aqueous solution, the technology of Fenton-like oxidation was used. Four important operating parameters(H2O2 dosage, n ZVI addition, pH, temperature) of Fenton-like oxidation were also researched in this paper. Results showed the optimal experiment conditions were as follows: the temperature was 30℃, pH was 3.0, the dosage of H2O2 was 10 mmol/L, addition of n ZVI was 1.0 g/L. Under the conditions, the removal of phenanthrene reached up to 100.0% when the initial concentration of phenanthrene was 50 mg/L within 60 min. Moreover phenanthrene degradation linked well to the first-order rate kinetic model, and degradation rate increased with the initial concentration of phenanthrene. This further confirmed that Fenton-like was a promising technology for phenanthrene degradation.