Treatment of digestate from a co-digestion biogas plant by means of vacuum evaporation: Tests for process optimization and environmental sustainability

• Published in: Waste management (Elmsford) Vol. 33; no. 6; pp. 1339 - 1344
• Main Authors: Chiumenti, A., da Borso, F., Chiumenti, R., Teri, F., Segantin, P.
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01.06.2013; Elsevier
• Subjects: Acidification; air temperature; ammonia; Anaerobic digestion; Anaerobiosis; Animals; Applied sciences; Biofuels; Biogas; boiling; Byproducts; cleaning; Concentration; Condensates; Continental surface waters; corn silage; Digestate treatment; energy; evaporation; Exact sciences and technology; industrial byproducts; irrigation; Manure; Natural water pollution; nitrogen; Nitrogen - isolation & purification; nitrogen balance; nitrogen content; Nutrients; pig manure; Plants (organisms); Pollution; Reduction; Refuse Disposal - instrumentation; Refuse Disposal - methods; Silage; surface water; Swine; technology transfer; transportation; Vacuum; Vacuum evaporation; vapors; waste management; Water; Water treatment and pollution; Biogas; Concentration; Digestate treatment; Vacuum evaporation; Anaerobic digestion; Energy consumption; Irrigation; Atmospheric condition; Reaction product; Acidification; Biomass; Nitrogen; Farmyard manure; Housing; Sustainable development; Optimization; Ammonia; Vertebrata; Mammalia; Nitrogen balance; Swine; Technology transfer; Surface water; Regulation; Artiodactyla; Ungulata

•Pilot vacuum evaporation systems were tested on digestate from a 1MWe biogas plant.•Single and two-stage configurations, with and without acidification, were tested.•Concentrate resulted 20% and 6% of mass in single and two-stage systems respectively.•Liquid and solid concentrates were obtained by...