Desempenho de sistema de filtração granular no tratamento dos efluentes da UFFS, Campus Cerro Largo

Abstract

With regard to data flow, it is important that the process of cost reduction be more important, smaller or larger or larger is the process of intensification of the process. A granular (rapid filtration) filtration may be presented as an alternative, being able to remove light particles by passing through a bed composed of granular material. Granular filtration, the options are protected against particles, particulate carriers and the characteristics of the suspension and the granular medium used. For the field was the experimental of 23 days, in the status of the treatment of the UFFS campus Cerro Largo / RS, that was retired soon after the stage of activated sludge, with a usage of basaltic rock as to medium filter, Time of the operation was changed to 800 cm after the first hours of experiment and change to 400 cm after 115 hours of operation. The performance of the filtration filter was determined by chemical, oxygen demand, solids, solids, suspended and turbidity responses at the entrance and exit of the system. A mathematical model was used to describe the filtration efficiency over the operating time, based on the obtained turbidity data. Despite the wide variety of effluent characteristics, the model did quite well with the experimental data. Also, a load variation was not analyzed. Turbidity removal efficiencies in the range of 50 to 80% were achieved. In this way we can conclude that the granular is used as a central filter for the effluent filtration, mainly for the filtration of particles with the presence of particles.