ADVANCED OXIDATION PROCESSES
Advanced oxidation processes (AOPs) have recently received a great interest in the research world. A lot of processes can be numbered in this kind of treatments, not many experimental are available for industrial applications. In particular AOPs on priority and emerging pollutants in water wastewater and liquid waste should be deepen in knowledge to introduce them in industrial exploitations.
The aim of this project is to devise new Fenton like AOPs for the treatment of liquid wastes. First, a number of Iron, Copper, and Silver based catalysts supported over Zirconia and co-catalyzed with Strontium have been used for the treatment of Ibuprofen contaminated aqueous solutions at standard conditions; 70oC of temperature, catalyst dose of 250 mg/L, oxidant dose (3%) of 25 ml/L, pH 5, pollutant dose of 10 mg/L and reaction time of 2 hours. On the basis of Ibuprofen degradation, TOC abatement, and projected toxicity of treated samples, three catalysts namely; Zr5Cu, Zr5Fe, and Zr10Sr5Cu have been marked as highly active. In order to enhance the TOC abatement efficiency of these catalysts, the operating conditions have been varied; temperature from 50 to 90oC, catalyst dose from 250 to 600 mg/L, oxidant dose from 12.5 to 30 ml/L, pH from 3 to 10, pollutant dose from 10 to 50 mg/L, and reaction time from 30 min to 180 min. Further some catalitical behavior of some solid wastes coming from stainles steel industry will be tested and evaluated.
- S. Hussain, E. Aneggia, S. Briguglio, M. Mattiussi, V. Gelao, I. Cabras, L. Zorzenon, A. Trovarelli, D. Goi, “Enhanced ibuprofen removal by heterogeneous-Fenton process over Cu/ZrO2 and Fe/ZrO2 catalysts” Journal of Environmental Chemical Engineering, Volume 8, Issue 1, February 2020, 103586.
- Hussain S., Aneggi E., Goi D. (2021). “Catalytic activity of metals in heterogeneous Fenton‑like oxidation of wastewater contaminants: a review”, Environmental Chemistry Letters, https://doi.org/10.1007/s10311-021-01185-z