Abstract
In this study, anaerobic filters treating five types of wastewaters (septic tank effluent, dairy wastewater, potato processing wastewater, slaughterhouse wastewater and whey wastewater) operated at different temperatures and different hydraulic retention times, were evaluated to determine kinetic parameters. Anaerobic filters operated at higher temperatures performed better than those operated at lower temperatures. Anaerobic filters operated at lower temperatures were the most affected by changes in hydraulic retention time.