Elaboración de gráficas de predicción para la retención de arsénico en el suelo del la reserva ecológica los Ilinizas en la provincia de Cotopaxi durante el periodo 20-21.
The presence of arsenic in soil is a risk to ecosystems and human health, although its presence can be natural or anthropogenic, by generating a predictive model of arsenic retention in the Los Ilinizas Ecological Reserve it is possible to determine the effects on the environment. The study and samp...
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| Format: | bachelorThesis |
| Language: | spa |
| Published: |
2021
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| Online Access: | http://repositorio.utc.edu.ec/handle/27000/11025 |
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Add Tag | Summary: | The presence of arsenic in soil is a risk to ecosystems and human health, although its presence can be natural or anthropogenic, by generating a predictive model of arsenic retention in the Los Ilinizas Ecological Reserve it is possible to determine the effects on the environment. The study and sampling area is located in the Iliniza, south of the hot springs of Cunugyacu parish of San Juan of Pastocalle, county Latacunga, province of Cotopaxi. Its objective is to generate a predictive graphs for arsenic retention in the different sampling points of the Los Ilinizas Ecological Reserve study area by means of comparative graphs. Composite soil sampling was carried out in a grid every 100m, obtaining 22 samples, taking into account the presence of natural factors associated with volcanic activity in the area. Laboratory analyses were performed at the university facilities using the colorimeter test for arsenic, using a solution of 500 ug As/ L, 1 g soil sample, and different agitation periods from 30 minutes to 48 hours, in order to plot the arsenic retention behavior when acting together solution+soil. By experimentally analyzing each sample and using comparison graphs, a predictive model was generated that yields arsenic retention of 10% to 35% in less agitation time (30 minutes to 8 hours) and 42% to 53% arsenic retention in longer hours (12 to 48 hours). |
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