Evaluación de un lombrifiltro para el tratamiento del agua residual de Grupo Rossi.

Abstract

The dairy industry is constantly growing, so waste production volumes are increasing. Wastewater is one of the main problems, because its discharge into the public sewage system does not comply with regulations. For this reason, different treatments have been presented, such as the worm filter or Tohá system, which besides being an economically accessible method, allows the efficient removal of pollutants that alter water quality, among which we can mention COD and nutrients. Thus, the titration project was carried out with the purpose of providing an innovative method to improve the treatment of wastewater from the Rossi Group company located in the Mejia canton, province of Pichincha. The development of the experiment began with the sampling and characterization of the wastewater to determine the contaminants present and identify the problems to be solved according to the Ecuadorian regulations specified in the TULSMA for a controlled discharge to the sewage system. An investigation was also carried out on the operation of the Tohá system for the treatment of the effluent in a laboratory prototype. In order to evaluate its usefulness in the reduction of pollutants through the action of earthworms, a control filter was built at the same time. The two systems were executed under the same conditions and their operation was verified in optimal conditions, as well as in unfavorable conditions. The benefits and costs associated with the future implementation of the project were also analyzed.