RENDIMIENTO COMPARATIVO DE DIFERENTES FLOCULANTES EN LA RECUPERACIÓN DE BIOMASA DE SCENEDESMUS OBLIQUUS CON CUANTIFICACIÓN DE LÍPIDOS
DOI:
https://doi.org/10.56238/levv16n53-138Palabras clave:
Biomasa Algal, Bioenergía, Floculante, LípidosResumen
Para evaluar la recuperación de biomasa algal mediante diferentes métodos de cosecha para la microalga Scenedesmus obliquus, utilizando agentes floculantes químicos y naturales. El experimento se realizó por triplicado, evaluándose cinco agentes floculantes: tres químicos (hidróxido de sodio, cloruro férrico y sulfato férrico) y dos naturales (quitosano y Moringa oleifera). La eficiencia de floculación, el rendimiento de recuperación de biomasa y, posteriormente, el contenido lipídico (%) de la biomasa recuperada se analizaron de forma integrada. En pruebas de eficiencia de floculación con 24 horas de interacción, todos los floculantes evaluados mostraron eficiencias superiores al 90%, demostrando la efectividad de los diferentes agentes. El rendimiento de biomasa osciló entre 0,157 g/L y 0,245 g/L, observándose los valores más altos en los tratamientos con sales metálicas. En cuanto al contenido lipídico, los floculantes químicos presentaron rendimientos de entre el 5,0% y el 6,0%, mientras que los floculantes naturales (Moringa oleifera y quitosano) presentaron niveles superiores, que oscilaron entre el 7,6% y el 11%. Todos los agentes floculantes evaluados demostraron una alta eficiencia en la recuperación de biomasa algal, con tasas superiores al 90%, lo que confirma la efectividad tanto de los floculantes químicos como de los naturales. Entre ellos, el sulfato férrico destacó por presentar el mayor rendimiento de biomasa. Por el contrario, el mayor contenido lipídico se observó en la biomasa recuperada con floculantes naturales como el quitosano y M. oleifera, lo que sugiere que estos agentes naturales no solo permiten una recuperación eficiente, sino que también conservan mejor los componentes bioactivos.
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