Calculate the minimum dissolved oxygen tension, Biology

Assignment Help:

Given our knowledge so far we now need to evaluate if it is feasible to run the process in the designed vessel. We therefore need to compare the oxygen uptake rate and the oxygen transfer rate. It is essential that the transfer rate exceeds the uptake rate by quite a margin but remember we are evaluating the worst case senario so we need to consider the result carefully.

In Section Two we calculated the maximum oxygen uptake rate of the culture for the conditions specified. We also need to check that the level of oxygen in the outlet gas is satisfactory for effective performance:

(i) Evaluate the exit gas oxygen concentration at the maximum oxygen uptake rate given that the vessel will probably operate with an over pressure of 0.25 bar g. The final test is to evaluate if the required biomass consumption can be achieved in the vessel. If we assume that at the maximum oxygen uptake rate and the oxygen transfer rate are just matching we can evaluate the likely minimum dissolved oxygen tension that will be attained at this point. We can then determine if this is acceptable.

(ii) Calculate the minimum dissolved oxygen tension likely to occur under the conditions described. Give reasons for any assumptions you make.


Related Discussions:- Calculate the minimum dissolved oxygen tension

Explain vegetable dehydration, Explain Vegetable dehydration It reduces...

Explain Vegetable dehydration It reduces the natural water content below the level critical for the growth of microorganisms (12-15%), without being detrimental to important nu

Are alleles segregate during meosis, Gregor mendel was an austrain augustia...

Gregor mendel was an austrain augustianian monk; his work most notably showed that. a. Alleles segregate during meosis b. Capital alleles are dominant c. The genetic material is pa

Glycogenolysis, Glycogenolysis:   It is breakdown  of glycogen to glucose  ...

Glycogenolysis:   It is breakdown  of glycogen to glucose  by means  of the   reaction   series  shown  in figure 6.11 Like glycogenesis  it also  occurs in all  body  cells , But

Explain the characteristics of a biological community, Which one of the fol...

Which one of the following is one of the characteristics of a biological community? 1.  Stratification 2. Natality 3. Mortality 4. Sex-ratio   Stratification

What is glucose intolerance and diabetes, What is Glucose Intolerance and D...

What is Glucose Intolerance and Diabetes ? Insulin resistance, by perinsulinaemia and glucose intolerance appear to promote atherosclerosis. The prevalence of CAD raises from 2

What are the endocrine glands, What are the endocrine glands that regulate ...

What are the endocrine glands that regulate sexual activity in males? How does this regulation work and what are the involved hormones? In males the sexual activity is regulate

Define the nutritional assessment tools, Define the Nutritional Assessment ...

Define the Nutritional Assessment Tools? Malnutrition/protein energy malnutrition amongst elderly persons has been observed in various studies -be it hospitalized patients, nur

What is threshold value when the system is in steady state, In a properly f...

In a properly functioning negative feedback system, the A. value of the controlled variable will always be very close to the threshold value when the system is in steady state.

Discuss briefly the color reactions of proteins, Question 1 List variou...

Question 1 List various methods used for determination of blood glucose. Explain the principle of each test. Add a note on advantages and disadvantages of each method Qu

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd