DEVELOPMENT OF NOVEL CATALYTIC MATERIALS FOR REMOVAL OF EMERGING ORGANIC POLLUTANTS BY ADVANCED OXIDATION PROCESSES (AOPs)

Abstract Shailesh Sable

The main aim of our work is to develop new catalytic materials and promising, efficient and environmental-friendly methods for the degradation and mineralization of organic pollutants by means of Advanced Oxidation Processes (AOPs) for wastewater treatment. For this purpose various families of catalysts were synthesized by different methods and their potential catalytic activity have been evaluated in Advanced Oxidation Processes (AOPs) such as ozonation and Fenton-like process for treating emerging pharmaceutical compounds like clofibric acid (CFA) and recalcitrant compounds like phenol at ambient conditions.

Among all the catalysts screened, the Cu-Al oxide catalyst prepared by a co-precipitation method, showed an excellent activity and stability in catalytic ozonation of CFA, achieving 82% and 96% mineralization in 2 and 6h, respectively.

As for the Fenton process, catalysts containing Fe oxides presenting hematite and maghemite phases, and to which small amounts of Pd were added (Pd/FeOOH) have shown very good results in the removal of CFA by means of heterogeneous Fenton process.

In the combined process of adsorption+oxidation, ZSM5 zeolite containing Fe and Pd (Pd/Fe-ZSM5) has presented good performance in the removal of phenol by adsorption and oxidation by heterogeneous Fenton-like process.

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