Jump to content

What is the seed inoculum?


Recommended Posts

"In field implementation of anaerobic digestion, the animal manure itself acts as seed inoculum and the process may reach its stability within 20-30 days of operation".

What is the meaning of seed inoculum?

Link to comment
Share on other sites

  • 2 weeks later...

I thought SJ's explanation was pretty clear. Bacteria that operate in anaerobic conditions are found in the animal manure by the millions. These comprise acidogenic bacteria which make acid compounds from the waste products that are used to produce biofuel, and also methanogenic bacteria which use the products of the acidogenic bacteria to make methane and carbon dioxide. If you want to grow bacteria in larger and larger numbers, you always start with a small (seeding) population found in a small sample (inoculum). As soon as you drop the inoculum into a suitable nutrient liquid, the bacteria multiply in numbers at a logarithmic rate.


The process by which the inoculum seeding population would work is mentioned in this wiki link:





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. These 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.[6] The methanogenic archaea populations play an indispensable role in anaerobic wastewater treatments.[7]
Edited by jimmydasaint
Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.