Browsing by Author "Naula Lema, Carlos Cuauhtemoc"

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    “Remoción de arsénico en agua de uso agrícola utilizando un filtro, en la Junta de Tiliche San José Provincia De Cotopaxi período 24-24”
    (Ecuador : Latacunga : Universidad Técnica de Cotopaxi (UTC), 2024-08) Naula Lema, Carlos Cuauhtemoc; Tapia Borja, Alexandra Isabel
    This project involved the design, implementation, and evaluation of a pilot multilayer filter for the removal of arsenic in intended water for agricultural use in the Tiliche San José Board, Cotopaxi Province. This region faces contamination problems in its irrigation water sources due to its volcanic origin. According to the reviewed background, the arsenic levels in the water exceed 0.1 mg/L, exceeding the Ecuadorian regulation of irrigation water quality established in the Texto Unificado de Legislación Secundaria de Medio Ambiente (TULSMA). This presents a significant risk to both health and agricultural production. The designed filter consists of 40 cm of 1 mm zeolite, two 10 cm layers of large limestone (100-120 mm), two layers of medium limestone (40-60 mm) and a layer of 1 cm polyethylene filter cloth. During initial testing, the filter reduced the arsenic concentration in water from 0.88 mg/L to 0.75 mg/L, representing a 14.77% removal. After making modifications to the filter media configuration, which included adding a layer of cloth to divide the zeolite into two 20 cm layers, the filter's efficiency significantly improved, achieving a reduction from 0.80 mg/L to 0.48 mg/L, equivalent to a 40% removal. The filter was monitored continuously every 50 minutes for 300 minutes of filtration, distributed in two irrigation shifts. On the first day, an average removal of 15% ± 2.04% was achieved, while during the second irrigation round, the removal was 12% ± 5.01%. The total estimated cost for the implementation and construction of the filter was USD 341.04.