Tratamiento de aguas residuales de empacadora de pescado con micro-alga chlorella vulgaris origen marino mediante fotobiorreactores
Fecha
2018
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Universidad de Guayaquil, Facultad de Ingeniería Química
Resumen
El estudio consistió en la aplicación de la micro-alga Chlorella vulgaris de origen marino en agua residual de una empacadora de pescado, la caracterización del agua residual posee un elevado valor en DQO 2430 mg/l , DBO 1466 mg/l, tensoactivos 1,2 mg/l , solidos suspendidos 1,2 mg/l , aceite y grasas 180 mg/l , se le realizo un pretratamiento: filtración para su acondicionamiento, luego se la distribuyo en los fotobiorreactores que contendrán varias concentraciones menores al 50% de microalga sobre agua residual en condiciones aerobias, con fluorescentes led de 1540 Luminex (Im) a periodos de 10 horas de luz y 14 oscuridad, agitación constante 4 L/min, durante el tratamiento se caracterizó el agua residual tratada inicial y final obteniendo una disminución del 70,26% de remoción en DQO, 100% en Turbidez, 92,18% de color estos fueron evaluados como parámetros de respuesta y los demás parámetros analizados se obtuvo, en la misma muestra la remoción de 97,74% en DBO5, 99% en Solidos suspendidos, 100% en aceites y grasas en la muestra cuya concentración de microalga había sido 10% sobre un 90% de agua residual, presentando elevación del pH mínima dentro de los rangos permisibles para las normas. Dando como resultado que la microalga Chlorella vulgaris tiene alta eficiencia en remoción de parámetros contaminantes en agua residuales de Empacadoras de pescado
The study consisted of the application of Chlorella vulgaris microalgae of marine origin in wastewater from a fish packing house, the characterization of the wastewater has a high value in COD 2430 mg / l, BOD 1466 mg / l, surfactants 1, 2 mg / l, suspended solids 1.2 mg / l, oil and fats 180 mg / l, a pretreatment was carried out: filtration for its conditioning, then it is distributed in the photobioreactors that contain several concentrations of less than 50% microalgae on residual water in aerobic conditions, with 1540 Luminex fluorescent LEDs (Im) at periods of 10 hours of light and 14 dark, constant agitation 4 L / min, during the treatment the initial and final treated wastewater was characterized obtaining a decrease of 70.26% of removal in COD, 100% in Turbidity, 92.18% in color, these were evaluated as response parameters and the other parameters analyzed were obtained, in the same sample the removal of 97.74% in BOD5, 99% in Suspended solids, 100% in oils and fats in the sample, its microalga concentration had been 10% over 90% of residual water, presenting a minimum pH elevation within the permissible ranges for the standards. Resulting in the Chlorella vulgaris microalgae having high efficiency in removal of contaminating parameters in wastewater from Balers of fish
The study consisted of the application of Chlorella vulgaris microalgae of marine origin in wastewater from a fish packing house, the characterization of the wastewater has a high value in COD 2430 mg / l, BOD 1466 mg / l, surfactants 1, 2 mg / l, suspended solids 1.2 mg / l, oil and fats 180 mg / l, a pretreatment was carried out: filtration for its conditioning, then it is distributed in the photobioreactors that contain several concentrations of less than 50% microalgae on residual water in aerobic conditions, with 1540 Luminex fluorescent LEDs (Im) at periods of 10 hours of light and 14 dark, constant agitation 4 L / min, during the treatment the initial and final treated wastewater was characterized obtaining a decrease of 70.26% of removal in COD, 100% in Turbidity, 92.18% in color, these were evaluated as response parameters and the other parameters analyzed were obtained, in the same sample the removal of 97.74% in BOD5, 99% in Suspended solids, 100% in oils and fats in the sample, its microalga concentration had been 10% over 90% of residual water, presenting a minimum pH elevation within the permissible ranges for the standards. Resulting in the Chlorella vulgaris microalgae having high efficiency in removal of contaminating parameters in wastewater from Balers of fish
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Palabras clave
Microalga, Chlorella vulgaris, Fotobiorreactor, Remoción, Efectividad