Cavitación ultrasónica para el tratamiento de aguas residuales. Una Revisión
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Esta revisión se centra en la técnica conocida por el nombre de cavitación para el tratamiento de aguas residuales. Existen diversas maneras de lograr que un fluido cavite, el centro de atención de este documento son la cavitación hidrodinámica y cavitación acústica. La cavitación ocurre cuando de manera brusca un fluido cambia de fase por variación en la presión de este, las cavidades cuentan con una considerable cantidad de energía que favorece reacciones al interior e interfase de cada burbuja o cavidad que se forma en el seno del líquido, así como también en fluido. Esta técnica de tratamiento resulta favorable toda vez que por sí misma no implica el uso o dosificación de insumos químicos para reducir la concentración de contaminantes en el agua. Las fuentes consultadas señalan que para lograr una mayor efectividad del proceso de cavitación se hace necesario la intensificación del proceso por la implementación simultanea de otras técnicas de tratamiento, entre ellas los procesos de oxidación avanzada, procesos electroquímicos y clarificación del agua. Las combinaciones de cavitación con otras técnicas de tratamiento de aguas residuales han sido objeto de estudio para diferentes contaminantes recalcitrantes logrando resultados muy favorables. Este trabajo hizo énfasis principalmente como caso estudio las aguas residuales de curtiembres.
Siby Garces Polo, Universidad Libre
https://orcid.org/0000-0001-5892-8205
Rafael Nikolay Agudelo Valencia, Universidad Libre, Cali
https://orcid.org/0000-0002-6646-7725
Gabriel de Jesús Camargo Vargas, Universidad Libre, Cali
https://orcid.org/0000-0003-3721-0936
Héctor Fernando Rojas Molano, Universidad Libre, Cali
https://orcid.org/0000-0001-8725-3008
Santiago Arias Sierra, Universidad Libre, Cali
https://orcid.org/0000-0003-2844-5805
Isabel Cristina Agudelo Carrascal, Universidad Libre, Cali
https://orcid.org/0000-0002-4881-8704
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