Degradation of organic pollutants in groundwater treatment based on catalytic ozonation technology

In this study, a new type of gamma-Al2O3 supported metal catalyst was prepared by using gamma-Al2O3 as catalyst and catalyst support, and a new catalytic ozonation system was formed with ozone. Nitrobenzene, a typical toxic organic pollutant which is difficult to be chemically oxidized and biodegraded, and nitrobenzene and aniline, which are common organic pollutants, are used as target materials. The efficiency, catalytic mechanism and influencing factors of the catalytic ozonation system for removing organic pollutants in water are studied in depth. It was found that the preparation process of Mn Fe supported gamma-Al2O3 catalyst with gamma-Al2O3 as carrier was simple, high hardness, good wear resistance, stable organic matter removal effect, long-term operation without adding other chemicals, saving operation cost. O-3/Mn Fe supported gamma-Al2O3 catalytic oxidation is a promising process.

Automated summary

This study prepared a new type of gamma-Al2O3 supported metal catalyst using gamma-Al2O3 as both catalyst and catalyst support, forming a new catalytic ozonation system with ozone. Nitrobenzene, a difficult-to-oxidize and biodegrade toxic organic pollutant, and nitrobenzene and aniline, common organic pollutants, were used as target materials. The efficiency, catalytic mechanism, and influencing factors of the catalytic ozonation system for removing organic pollutants in water were thoroughly studied. The preparation process of the Mn Fe supported gamma-Al2O3 catalyst using gamma-Al2O3 as the carrier was found to be simple, with high hardness and good wear resistance. The system showed stable organic matter removal effect and could operate long-term without the need for additional chemicals, saving operational costs.