Water disinfection with peracetic acid and UVC combined treatment: a laboratory scale study

FLORES MARINA; BRANDI RODOLFO; CASSANO ALBERTO; LABAS MARISOL

Porto

Congreso; 7th European Meeting on solar chemistry and photocatalysis: Environmental Apllications (SPEA 7); 2012

Sociedade Portuguesa de Quimica-SPEA

One of the most pervasive problems affecting people throughout the world is inadequate access to clean water and sanitation. Water disinfection is routinely carried out to prevent the spread of human pathogens present in wastewater effluents. To this aim, chemical and physical treatments are applied to the effluents before their emission in water bodies. The objective of this study was to get laboratory results on the disinfection efficacy of peracetic acid (PAA) and of the synergic combined treatment with ultraviolet radiation. The commercial solution of PAA alone showed to be an effective disinfectant, even at low concentrations, reaching an inactivation of 99,9% in five minutes. The combination of PAA/UVC a