A Sustainable Management of Treatment Plant for Dairy Wastes with the Use of Its By-Products

摘要

One of the main problems related to environmental protection in Costa Rica is the adequate management and treatment of piggery and dairy wastes. Pig and dairy farms with hundreds to several thousand of animals are in operation without adequate system for treatment and disposal. Manure, urine and rests of food are washed out from the cages with volumes of water not adequately controlled causing a great variation in the volume and concentration of the effluents. This situation has caused the failure of conventional wastewater treatment plants. The successful application of anaerobic technology 'AFBRs' to treat the wastewater of dairy milk with the utilization of biogas in order to produce electricity for the dairy equipment in the milk farm located in the province of Cartago, Costa Rica is presented. As result offers to the industrialists an ecologically viable system and with the use of all its by-products, which allows to describe it like a clean production.