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http://dspace.udla.edu.ec/handle/33000/9227| Tipo de material : | bachelorThesis |
| Título : | Evaluación de la eficacia microbiológica de filtros de agua de cerámica negra producidos en Pifo-Ecuador |
| Autor : | Balseca Enríquez, Priscila Carolina |
| Tutor : | Guerrero Latorre, Laura |
| Palabras clave : | AGUA POTABLE;FILTRACIÓN;PURIFICACIÓN DEL AGUA;PARROQUIA PIFO-QUITO |
| Fecha de publicación : | 2018 |
| Editorial : | Quito: Universidad de las Américas, 2018 |
| Citación : | Balseca Enríquez, P. C. (2018). Evaluación de la eficacia microbiológica de filtros de agua de cerámica negra producidos en Pifo-Ecuador (Tesis de pregrado). Universidad de las Américas, Quito. |
| Resumen : | El filtro de cerámica es una opción de tratamiento de agua a nivel domiciliar que resulta eficaz en la remoción de bacterias, protozoarios y helmintos... |
| Descripción : | The ceramic filter is an option for water treatment at the household level that is effective in the removal of bacteria, protozoa and helminths. The filters are made from a combustible material, not fuel and water. The filters are baked in ovens that consume the organic material, leaving a porous surface capable of retaining microorganisms. The filters are impregnated with colloidal silver due to their bactericidal effect. The filters so far elaborated are not effective in the removal of viruses, so in this study we decided to evaluate the microbiological efficacy of a prototype black ceramic filter cooked in a reducing atmosphere. It was started from a batch of 16 filters manufactured in the factory “Horeb” in Pifo-Ecuador, which were made with 10 kg of clay, 68 kg of sawdust and 25 liters of water. The filters were baked in an oven for 13.5 hours up to 890 ° C. Finally, the filters were impregnated with 9.48 g of colloidal silver nitrate. The microbiological efficacy of 3 filters for the removal of bacteria and viruses after 1200 L of filtered water was analyzed. As a model microorganism, work stocks of Escherichia coli ATCC 25922 and bacteriophage MS2 were used. After 600 L, an LRV (Logarithmic Reduction Value) of 5.36 Log was observed for E. coli, which according to the WHO (World Health Organization) can be considered as a “highly protective” treatment. While for MS2 an LRV of 3.83 Log was observed, placing it as a protective treatment. The microbiological efficacy of the filters was affected after 600 L of filtered water, this decrease can be attributed to the appearance of a biopelicula outside the filter, which affected the adhesion of microorganisms to the porous surface. In conclusion, the ceramic filter is an option for the treatment of domestic water efficient in the removal of bacteria and viruses. However, it is necessary to conduct field studies to determine how black ceramic filters behave with water with concentrations of real microorganisms. It is also recommended to analyze the amount and the way in which colloidal silver is added to the filter, to inhibit the presence of a biopelicula. |
| URI : | http://dspace.udla.edu.ec/handle/33000/9227 |
| Aparece en las colecciones: | Ingeniería en Biotecnología |
Ficheros en este ítem:
| Fichero | Descripción | Tamaño | Formato | |
|---|---|---|---|---|
| UDLA-EC-TIB-2018-14.pdf | 2,49 MB | Adobe PDF | Visualizar/Abrir |
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