Uso de la microalga Chlorella sp. viva en suspensión en la decoloración del agua residual de una empresa textil/Using the microalgae Chlorella sp. live suspended in decoloration wastewater from a textile factory
DOI:
https://doi.org/10.15665/rp.v15i1.829Keywords:
Microalga Chlorella sp, Colorante, Biodegradación, Absorbancia, BioensayoAbstract
Esta investigación evaluó la capacidad de la microalga Chlorella sp. viva en suspensión para remover el color del efluente de una empresa textil en el departamento del Atlántico (Colombia). La metodología empleada consistió inicialmente en cultivar la microalga en un biorreactor de 2,5 L de capacidad efectiva, empleando un fertilizante comercial como medio de cultivo bajo aireación continua a la temperatura del laboratorio, con fotoperiodos de luz/oscuridad de 12 horas. Luego el agua residual se sometió a tratamiento usando diferentes concentraciones de microalga equivalente a 0,10, 0,20 y 0,30 en absorbancia con sus respectivos controles. Los resultados muestran que el bioensayo de 0,30 en absorbancia removió el 97,2% del colorante presente y, disminuyó en un 94,6% el DQO y 95,4% el DBO5, entre otros parámetros de caracterización antes y después del tratamiento, mostrando la mejor bioremoción en este estudio. Estos resultados permiten sugerir que el tratamiento biológico con la microalga Chlorella sp. del agua residual es un método eficiente.
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