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Efficiency of a multi-barrier household system for surface water treatment combining a household slow sand filter to a Mesita Azul® ultraviolet disinfection device

The study evaluated a multi-barrier household water treatment system for 113 days, targeting improved drinking water quality in low-income regions. The system combined a pre-treatment, an intermittent slow sand filter, and a UV disinfection device. It effectively reduced turbidity, total coliforms, and E. coli, with the sand filter playing a significant role. The UV disinfection further eliminated remaining bacteria, ensuring safe drinking water.