ADVANCED OXIDATION PROCESS FOR THE REMOVAL OF ORGANIC MATTER FROM WASTEWATER

Abstract

Advanced oxidation processes have emerged as a promising technology for removing organic matter from wastewater. This study explored the feasibility of direct photolysis using UV LED technology and UV LED based advanced oxidation processes for removing organic matter from wastewater. UV doses of 2500 mJ/cm2 and 5000 mJ/cm2 at a wavelength of 275 nm were used with chemical oxidation concentrations at 1 and 10 mg/L respectively. UV LED alone for BOD removal was also assessed at both bench- and full-scale. The study found that all AOP conditions resulted in significant reductions in BOD compared to the control, however, 10 mg/L concentrations for chlorine achieved a final BOD below current national performance standards. UV LED alone was also found to result in additional BOD removal from plant effluent at both bench- and full-scale. As environmental concerns continue to grow, it is imperative to continue researching and optimizing AOPs for wastewater treatment.