Removing dyes used in the textile industry from the water bodies is a relevant task because of the importance of their high toxicity. The cotton industry waste is a big problem in the final disposal. Waste cotton fibrils were studied as adsorbent material to treat the coloured effluents of the textile industry. Washing with boiling water was determined as the most efficient method for cleaning. The material was physical characterized. After that, methylene blue adsorption tests were carried out to review the dry removal process at different pH. The Langmuir isotherm and the pseudo-second kinetic order models best described this adsorption process. The results would indicate that the process involve a chemisorptions.
El objetivo del presente trabajo fue proponer un tratamiento alternativo para los efluentes provenientes de una industria que fabrica furfural. El efluente, denominado aguas madres, contiene hasta 3000 mg/L de furfural. Para ello, se diseñó y construyó un reactor anaerobio de lecho fluidizado; se adaptaron microorganismos autóctonos al efluente a degradar y se evaluó la eficiencia, mediante el tratamiento de un efluente sintético de similares características que las aguas madres. Se monitoreó el desempeño del reactor, analizando los porcentajes de remoción de furfural. Los resultados, a escala laboratorio, demostraron que es posible adaptar consorcios bacterianos a concentraciones de furfural de hasta 600 mg/L. El reactor ensayado resultó eficiente y pudo ser utilizado para evaluar la degradación del furfural. Se obtuvieron porcentajes de remoción de hasta 99,92% en 20 horas de operación
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