1
tesis doctoral
Publicado 2025
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El presente estudio tuvo como objetivo analizar el proceso de remoción del arsénico del agua con soportes naturales de arcilla roja, con el fin de mejorar la calidad del agua para consumo humano del rio Apacheta, se realizó el análisis de la eficacia de los soportes naturales de arcilla roja. La metodología fue un estudio aplicado de nivel explicativo, se implementó un diseño de cribado Plackett - Burman para identificar las variables más influyentes en el proceso de remoción de arsénico, optimizando recursos y enfocando la investigación en los factores críticos. Se evaluaron los niveles de arcilla roja, Fe2O3, Al2O3, estabilizantes, temperatura de quema y tiempo de retención en 12 tratamientos experimentales. El análisis de Pareto reveló que la temperatura de quema, arcilla roja y Fe2O3 son los factores más significativos en la remoción de arsénico, con un nivel de sig...
2
artículo
Publicado 2025
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Water intended for human consumption faces increasing contamination by arsenic, a toxic metalloid naturally present or derived from anthropogenic activities, whose prolonged exposure poses a serious public health risk. In response to this problem, the study aimed to evaluate the effectiveness of natural red clay as an ecological adsorbent for arsenic removal from water. A Plackett–Burman experimental design was applied to identify the significant variables, and the Response Surface Methodology (RSM) was used to optimize the process. Six factors were analyzed, among which the Pareto analysis identified firing temperature, Fe₂O₃ content, and red clay percentage as the most influential factors, with a significance level of α = 0.05 and a determination coefficient of R² = 0.74. Subsequently, optimization through RSM achieved a maximum arsenic removal of 85.1% under conditions of 90% ...
3
artículo
Publicado 2025
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Arsenic contamination in water represents a serious public health issue worldwide, particularly in regions where natural or anthropogenic sources contribute to concentrations exceeding the maximum permissible limit of 0.01 mg/L established by the World Health Organization. This study evaluated the efficiency of a ceramic matrix made from red clay impregnated with ferric oxide (Fe₂O₃) for arsenic removal and water quality improvement. Water samples were collected from the Apacheta River and treated using a continuous-flow system with supports calcined at 800 °C. Arsenic concentrations were determined by spectrophotometry, and physicochemical parameters were analyzed before and after treatment. The results showed a reduction in arsenic concentration from 0.17 mg/L to 0.0053 mg/L, achieving a removal efficiency of 94.5 %, along with improvements in turbidity, electrical conductivity, a...
4
artículo
Publicado 2024
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The general objective was to rebuild and put into operation the crucible furnace for smelting aluminum scrap at the National University of San Cristóbal de Huamanga – Ayacucho. The specific objectives were to evaluate the stages of the reconstruction regarding the modification of the design and operation of the crucible furnace for the smelting of aluminum scrap. Obtaining objects (finished products) through different molding techniques. Carry out material and energy balances using oil and gas as fuel. The level of research was technological experimental, and the analytical method was comparative. The design was explanatory experimental. 4 tests were carried out using oil as liquid fuel, then gas, thereby improving the aluminum smelting process, with a high recovery percentage. It was implemented with an automated control panel for the use of gas as fuel. Different molding techniques ...