Treatment of dairy industry wastewater with an anaerobic filter

Summary Concentrations of up to 10.2 g COD/L were applied to an horizontal anaerobic filter at 40°C, obtaining efficiencies in COD removal of 85%. The contents of the reactor are kept mixed by recycling and at a pH value of 6.9.The addition of alkali to the influent increases the production of biogas reaching a maximum of 250 L of methane per kg of COD removed.Career Investigator of the Consejo Nacional de Investigaciones Cientificas y Técnicas (R. Argentina).Fellow of the Consejo Nacional de Investigaciones Cientificas y Técnicas (R. Argentina).