Results 21 to 30 of about 1,983 (164)
Vacuum Evaporation of Liquid Fraction of Digestate [PDF]
Kemija u industriji, 2018 The aim of this work was to reduce the strain on a biogas plant by reducing the hydraulic pressure during winter using the technique of two-stage vacuum evaporation. In the first stage, the target was to concentrate as much as possible aqueous ammonium ions (NH4+) in condensate and neutralize it with sulfuric acid (H2SO4). Ammonium sulphate ((NH4)2SO4),
Tajda Simonič +2 more
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Agronomy, 2021 Manures can be treated by solid–liquid separation and more sophisticated, subsequent approaches. These processes generate fertilizers, which may differ in composition and N2O release potential.
Ioana Petrova Petrova +2 more
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Energies, 2021 Even thoughdigestate, which is continually generated in anaerobic digestion process, can only be used as fertilizer during the growing season, digestate treatment is still a critical, environmental problem.
Aleksandra Chuda, Krzysztof Ziemiński
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Effect of carbon-enriched digestate on the microbial soil activity.
PLoS ONE, 2021 ObjectivesAs a liquid organic fertilizer used in agriculture, digestate is rich in many nutrients (i.e. nitrogen, phosphorus, sulfur, calcium, potassium); their utilization may be however less efficient in soils poor in organic carbon (due to low carbon ...
Jiri Holatko +14 more
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Bioengineering, 2021 Third generation biofuels and high-value bioproducts produced from microalgal biomass have been considered promising long-term sustainable alternatives for energy and/or food production, potentially decreasing greenhouse gas emissions.
Rajinikanth Rajagopal +3 more
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Energies, 2022 Biogas and anaerobic digestion has begun to be considered an important renewable and sustainable energy source. The sustainable development of the anaerobic digestion process depends largely on the ability to manage large amounts of by-products generated
Alvyra Slepetiene +4 more
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Acid digestion of organic liquids
, 1980 Laboratory studies on the destruction of liquid organic wastes by acid digestion are discussed. A variety of liquid waste types was tested, including those encountered in the nuclear industry as well as some organic liquids representative of non-nuclear industrial wastes.
J. Partridge, G. Bosuego
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Valorization of Anaerobic-Fermentation Liquid Digestates—Membrane-Based Process Development
Membranes, 2022 Complete valorization of various wastes and effluents, with significant organic content, remains a great challenge in the pursuit of a circular economy. The approach based on anaerobic fermentation, leading to valuable biogas production, has been broadly accepted and employed as an attractive processing scheme. However, despite notable research efforts,
Charikleia Tsaridou +3 more
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Vacuum Evaporation of a Liquid Digestate from Anaerobic Digestion: A Techno-economic Assessment
Chemical Engineering Transactions, 2018 The current boom of biogas plants (BGP) in Europe is associated with major digestate production. Digestate contains large amounts of nutrients but in low concentrations compared to artificial fertilizers. Storage and transportation of the digestate represents significant financial burden for BGP owners, especially in areas with intensive agricultural ...
Vondra Marek +3 more
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Techno-Economic and Environmental Analyses of Digestate Treatment after Anaerobic Digestion Process [PDF]
Journal of Renewable Energy and Environment, 2023 In this study, the impact of digestate treatment after Anaerobic Digestion (AD) process in two scenarios is analyzed in the case of an industrial diary unit in the United States.
Ali Nazari +2 more
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