ARUNKUMAR S. AND SUVALAKSHMI ANANTHAN
Abstract
Solid Waste is being produced since the beginning of civilization. Dumping or land filling in open space is the most common method adopted all over the world from the early days. When solid waste is dumped in low-lying areas, it meets groundwater resulting in the generation of leachate, a mineralized liquid that contains organic and inorganic substances. Drinking or using contaminated water with leachate water in food preparation leads to widespread acute and chronic illnesses. The use of catalysts in the photocatalytic degradation process for oxidation has been considered over the last decades for the wastewater treatment. Therefore, nanoparticles such as TiO2 nanoparticles, Cu-doped TiO2 nanoparticles and Zn-doped TiO2 nanoparticles were utilized for this study with the presence of Na2S2O8.The effectiveness of Vi and UV-based advanced oxidation processes for the treatment of landfill leachate was evaluated and identified 99% COD removal by 0.8 mg/l Cu-doped TiO2 nanoparticles.