Investigation of different schemes for anaerobic treatment of food industry wastes in Estonia

Abstract

During the last 5 years, four types of wastewaters from the food industry (yeast, cheese whey, distillery, vegetable oil) with different technological schemes of anaerobic mesophilic digestion (one or two stages) and different types of reactors (contact process, anaerobic filter, fixed bed filter with plastic media, UASB reactor, and SBR) were investigated. On the basis of the results, the main technological schemes in Estonia and the main types of reactors with main parameters for local treatment of the investigated industrial wastewater were recommended.