Review on the main advances in photo-Fenton oxidation system for recalcitrant wastewaters

Review on the main advances in photo-Fenton oxidation system for recalcitrant wastewaters

This paper reviews themain advances in photo-Fenton oxidation treatment for recalcitrant wastewaters. This oxidation method is able to produce biodegradable intermediates and mineralize such pollutantseffectively when the main operational conditions are at optimum level. However, cost of the process isone of the main limitations. Several strategies have been put in practice to minimize cost and improvephoto-Fenton efficiency primarily through application of heterogeneous catalysts and/or chelatingagents. In addition, cost can be further reduced by applying solar energy and integrating biologicaltreatment technologies in the treatment process.

This paper reviews themain advances in photo-Fenton oxidation treatment for recalcitrant wastewaters. This oxidation method is able to produce biodegradable intermediates and mineralize such pollutantseffectively when the main operational conditions are at optimum level. However, cost of the process isone of the main limitations. Several strategies have been put in practice to minimize cost and improvephoto-Fenton efficiency primarily through application of heterogeneous catalysts and/or chelatingagents. In addition, cost can be further reduced by applying solar energy and integrating biologicaltreatment technologies in the treatment process.