Reactor volume in anaerobic biodegradation process

In summary, reactor volume is an important factor in the anaerobic biodegradation process as it determines the amount of microorganisms and substrate present, which impacts the biodegradation rate and efficiency. The optimal volume varies depending on various factors and can be changed during the process, but careful planning is necessary to avoid disrupting the process. The volume is typically calculated based on the desired retention time and may also consider other factors such as mixing and biomass concentration.
  • #1
War-Saw
5
0
hello,
today I faced a problem with explaining why in anaerobic process the volume of UASB reactor is smaller than volume in CSTR with the same amount of final product - biogas
Answer should contain characteristics like: difference in kinetics, concentration, rxn yield.

Can anybody explain me this topic? Or tell me in which book I can find the answer :)
 
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  • #2
UASB digesters has very short RT of few hours to few days. They can handle very large amount of substrates and the bulk of the substrate is liquid.
 

1. What is the importance of reactor volume in anaerobic biodegradation process?

The reactor volume is a crucial factor in the anaerobic biodegradation process as it determines the amount of microorganisms and substrate present in the system. This, in turn, affects the rate of biodegradation and the efficiency of the process.

2. How does the reactor volume impact the biodegradation rate?

The larger the reactor volume, the higher the number of microorganisms and substrate available for biodegradation. This results in a higher biodegradation rate. Conversely, a smaller reactor volume will have a slower biodegradation rate.

3. What is the optimal reactor volume for anaerobic biodegradation?

The optimal reactor volume for anaerobic biodegradation depends on various factors such as the type and concentration of substrate, type of microorganisms, and operational conditions. It is usually determined through experimentation and optimization processes.

4. Can the reactor volume be changed during the anaerobic biodegradation process?

Yes, the reactor volume can be changed during the process. However, this can affect the biodegradation rate and efficiency. Any changes in reactor volume should be carefully planned and executed to avoid disrupting the microbial community and process stability.

5. How is the reactor volume calculated for anaerobic biodegradation?

The reactor volume is typically calculated based on the desired retention time, which is the time required for the substrate to be in the reactor for effective biodegradation. The formula for calculating reactor volume is: Volume = Flow rate x Retention time. Other factors, such as mixing and biomass concentration, may also be considered in the calculation.

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