I would like to inquire on how to model the energy produced in an Anaerobic Digestor if it is fed with food waste resulting from Protein Extraction plants and other food processing plants? What should I be looking for in the waste stream in terms of chemical composition? What formulae could be used?
Dear Jack Rizvi,
Actually,
Anaerobic digestion is a sequence of processes by which microorganisms break down biodegradable material in the absence of oxygen. The process is used for industrial or domestic purposes to manage waste or to produce fuels. Much of the fermentation used industrially to produce food and drink products, as well as home fermentation, uses anaerobic digestion.
The digestion process begins with bacterial hydrolysis of the input materials. Insoluble organic polymers, such as carbohydrates, are broken down to soluble derivatives that become available for other bacteria. Acidogenic bacteria then convert the sugars and amino acids into carbon dioxide, hydrogen, ammonia, and organic acids. In Acetogenesis, bacteria convert these resulting organic acids into acetic acid, along with additional ammonia, hydrogen, and carbon dioxide. Finally, methanogens convert these products to methane and carbon dioxide. The methanogenic archaea populations play an indispensable role in anaerobic wastewater treatments.
This link will help you for more information.
https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.hindawi.com/journals/btri/2015/895015/&ved=2ahUKEwjljfPa9sPoAhWN4IUKHenLD_cQFjABegQIAhAB&usg=AOvVaw2bxmnACAn0aTCvC17xXiKh
Hope you satisfy with my answer, if any question please feel free to ask me.
Thanks.
Read this article which may help you. Energy potential from the anaerobic digestion of food waste in municipal solid waste stream of urban areas in Vietnam
Tamru Tesseme Aragaw Zia Hameed Thank you Professor Hameed and Professor Tesseme for your help, these studies have been very informative in terms of formulation.
Dear Jack Rizvi ,
Hope you are doing great. I have been studying on the anaerobic digestion process and bio-digester for a couple of years; The most detailed model to estimate the amount of biogas is the ADM1 model without a shadow of a doubt, but if you do not need the exact amount of the produced biogas you won't need this model since it is quite complicated and requires detailed information that might not be found much easily. Besides the ADM1 model, the most accurate results would be obtained by conducting an experiment and measuring the amount of the produced biogas, afterwards you could measure the calorific value of the biogas yield.
Raegards