Diana Marcela Cuesta-Parra- Doctor of Engineering
- Professor at Universidad de América
Diana Marcela Cuesta-Parra
- Doctor of Engineering
- Professor at Universidad de América
About
12
Publications
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Publications
Publications (12)
The production of sodium hypochlorite in situ is useful for the disinfection of water in aqueducts located in areas of difficult access; published studies on the optimum parameters of electrolysis for the production of sodium hypochlorite are carried out at laboratory scale. The paper includes the results of the evaluation of a prototype for the pr...
Sodium hypochlorite has significant potential as a sanitation solution in hard-to-reach areas. Few studies have investigated the optimal electrolysis parameters for its production with volumes greater than 10 L. This study evaluated sodium hypochlorite production through electrolysis in a 22-L prototype and identified the optimal operating paramete...
The present work evaluated the performance of coffee (Coffea Arabica) Caturra variety waste extracts for the removal of two azo dyes used in the textile industry. Ultrasonic extractions were performed to evaluate the effect of particle size and type of residue on the concentration of polyphenols in the extracts, finding that the dehydrated pulp wit...
Coffee pulp is one of the most abundant residues in the coffee agroindustry. Its inadequate handling and disposition produce contamination of water and soil. However, this waste contains high levels of tannins and other phenolic compounds, which could be extracted, getting added value. A vertical rotational composite design was used to optimize pro...
The coffee agribusiness generates significant amounts of waste that becomes an environmental problem in producing countries. For example, synthetic coagulants have sustainability disadvantages. Immature coffee beans are collected together with mature beans, and their high polyphenol content makes them unsuitable for coffee production and commercial...
Los aceites lubricantes usados son catalogados como residuos peligrosos por el contenido de metales pesados y sustancias tóxicas provenientes de la combustión y desgaste del motor, lo que representa un riesgo para las personas que los manipulan y generan contaminación ambiental. A pesar de perder su vida útil, los lubricantes usados pueden integrar...
The color removal activity of polyphenolic extracts obtained by maceration of coffee pulp with the Coffea arabica species was evaluated in synthetic waters prepared with three commercial dyes: methylene blue, malachite green and crystal violet. The extract was prepared by maceration using milled coffee pulp in a hydroalcoholic solution with a volum...
A lo largo de su vida útil los aceites de motor pierden propiedades debido a la aparición de contaminantes e impurezas resultantes de procesos de oxidación indeseables. Esta investigación fueron caracterizados los residuos de aceite de motor con el fin de establecer sus contaminantes mediante técnicas de infrarrojo. Se espera realizar el acondicion...
La variabilidad climática en la cuenca del Río Cauca, además de sus 110 tributarios ponen en riesgo de inundación a municipios en el área de influencia, especialmente en el Valle del Cauca, Antioquía, Bolívar y Sucre. El río Cauca recibe la descarga de 183 municipios ubicados en zonas agricolas, mineras y pesqueras lo que pone en riesgo la salud de...
