Evaluación del comportamiento de un reactor UASB con diferentes cargas orgánicas provenientes de lactosuero
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Date
2014
Journal Title
Journal ISSN
Volume Title
Publisher
Corporación Universitaria Lasallista
Área Metropolitana del Valle de Aburrá
Área Metropolitana del Valle de Aburrá
Abstract
Introduction. Dairy industry is one of the most important sectors in industrialized and developing countries. Approximately 90% of the milk used in cheese industries is eliminated as whey (or lactoserum). Statistics indicate that lactoserum or whey is discarded as an effluent and brings a serious environmental problem, due to the fact that it affects,
physically and chemically, the soil´s structure. This reduces the performance of crops and, when whey is disposed by
being pouring it into water bodies, aquatic life is reduced because it drains the dissolved oxygen. Objective. Evaluate a
UASB reactor by means of anaerobic digestion, using two organic loads of 3 g/L/.day COD and 4 g/L/.
day COD. materials and methods. Different laboratory analyses were performed on both loads: COD, protein, sugars, VFA, methane
and ammonium. Results. The results indicated that the COD efficiency was above 65%; the sugars´ degradation was
total and the protein degradation was higher that 78%, while the ammonium, methane and VFA concentrations were
all within the normal parameters for the reactor´s correct work. Conclusion. The UASB reactor is a god option to
treat waste water, as it contains whey in two different organic loads.
Description
Keywords
Corporación Universitaria Lasallista, Área Metropolitana del Valle de Aburrá, Lactosuero, Digestión anaerobia, Industria láctea