Análisis de costos de la electrocoagulación de aguas residuales de la industria láctea
Files
Date
2012-08-09
Journal Title
Journal ISSN
Volume Title
Publisher
Corporación Universitaria Lasallista
Área Metropolitana del Valle de Aburrá
Área Metropolitana del Valle de Aburrá
Abstract
Introduction. Waste Waters from the Dairy industries are highly loaded with organic matter
(DQO- Chemical Oxygen Demand in Spanish- and fat). These pollutants have a considerable
impact on the environment, especially on water. Electrocoagulation is a process that has being
developed recently and is an alternative for treating waste waters from the dairy industries,
offering advantages in comparison to the traditional technologies.
Objective. To calculate the costs of implementing and operating electrocoagulation in a dairy
industry, and comparing them with those from chemical coagulation.
Materials and methods. The waste water from a dairy industry was treated by using electrocoagulation,
using a bach process in order to find better conditions to remove its DQO and
fat pollutants. Later, the waters were treated continuously, according to the response variables
measured (percentages of removal of DQO, oils and fat), with these results. The process was
escalated and the costs of implementation and operation were compared to those from chemical
coagulation.
Results. The operative costs of electrocoagulation are 80,75% of the operative costs of
chemical electrocoagulation, and the implementation costs of electrocoagulation are half the
costs of chemical electrocoagulation. Conclusion. Electrocoagulation shows itself as an efficient
treatment both technical and economically, for removing pollutants from waste water in
dairy industries.
Description
Keywords
Electrocoagulación, Corporación Universitaria Lasallista, Área Metropolitana del Valle de Aburrá, Tratamiento de aguas residuales, Demanda química de oxígeno (DQO), Industria lechera, Aguas residuales, Aguas residuales industriales, Análisis de costos