Tratamiento de aguas residuales de la industria láctea
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Fecha
2007
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Área Metropolitana del Valle de Aburrá
Corporación Universitaria Lasallista
Corporación Universitaria Lasallista
Resumen
Introduction. Milk industries generates lots of waste waters, accumulating in them the highest
quantities of pollutants resulting from their processes. These waste waters content much
organic matter, specially fat and oils. They also contain solid materials in suspension and pH
values beyond acceptable rates for pouring. Electrocoagulation is a process that has been being
developed in recent years and has been an alternative to treat waste waters from milk industries,
offering many advantages when compared to traditional technologies. Objective. To study
the application of electrocoagulation to treat waste waters from milk industries. Materials
and methods. Waste waters were traeted with the electrocoagulation process by the use
of an experimental factorial design 3X2X3, which obeys to pH variations, current density and
treatment time. The response variables measured were removal percentages of COD, and fats
and oils. Results. COD removals had a 94% value and fats and oils had a 99% measurement,
at an acid pH and at a treatment time of 15 minutes. Conclusion. Electrocoagulation can be
seen as an efficient treatment to remove pollutants from waste waters coming from industries,
specifically from milk industries, like in the case of our research.
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Palabras clave
Electrocoagulación, Aguas residuales, Aguas residuales industriales, Tratamiento de aguas residuales, Industria lechera, Celda tipo Bach, Corporación Universitaria Lasallista, Área Metropolitana del Valle de Aburrá