Engineered Anaerobic Digestion Utilizing a Thermop

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Information about Engineered Anaerobic Digestion Utilizing a Thermop
Science-Technology

Published on July 20, 2008

Author: goeneas

Source: authorstream.com

Engineered Anaerobic Digestion Utilizing a Thermophilic Media : Engineered Anaerobic Digestion Utilizing a Thermophilic Media By Barnett Koven 17th International Conference on Health and Environment: Global Partners for Global Solutions Purpose of AD : Purpose of AD Waste CH4 + CO2 Fertilizer Resulting gases known as biogas Energy derived from biogas is considered carbon neutral Power Gen. CO2 Energy Heat Energy Bacterial Process Overview : Bacterial Process Overview Complex organic matter Carbohydrates, proteins, fats Soluble organic molecules Sugars, amino acids, fatty acids Volatile fatty acids 2. Fermentation Acetogenesis Acetic acid CO2 + H2 CH4 + CO2 3. Methanogenesis 1. Hydrolysis 3. Methanogenesis Hypothesis : Hypothesis A more effective reactor design will optimize biogas yield and raise the methane content The use of a thermophilic media will result in a more efficient process Each unit of waste has a set energy potential Digester Design : Digester Design Slide 6:  sw Slide 7: Conservative Moderate Liberal Slide 8: 2 CO2 Results: : Results: Discussion : Discussion Anaerobic Digestion utilizing a Thermophilic media results in a more favorable biogas composition and a higher biogas yield Biogas yield peaks after just 11 days Each unit of waste has a set energy value Biogas yield will form a parabola when related to time Implications : Implications Future Research : Future Research Design/experiment with a four stage reactor Design a pre-fab. kit for field testing Re-design the intake system Pre- Treatment Reactor Hydrolysis Reactor Fermentation Reactor Methanogenesis Rector 3 4 2 1 Feedstock Digestate Engineered Anaerobic Digestion Utilizing a Thermophilic Media : Engineered Anaerobic Digestion Utilizing a Thermophilic Media Barnett Koven Em:Barnett.Koven@gmail.com

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