A Simple Model of Bioreactor

Question 1

What is a bioreactor?

Answer 1

device = supports the biologically active environment.
controlled environ
pH; temp; concentration; etc.
eg. grow organisms/cells/tissues
creating meds + vaccines
sewage treatment
alcohol production

Question 2

Example 1:

Given
tank w/ 25L water w/ 10kg salt mixed in
water inflow rate = 5L/min
water outflow rate = 2L/min

Find
how long will it take for 60 per cent salt = wash out system

Answer 2

Question 3

The water:
initial level: 25 litres
inflow rate: 5L/min (is constant ZOS)
outflow rate: 2L/min (is constant ZOS)

What is the LRD?

Answer 3

Question 4

What the water level would look like?

Answer 4

Question 5

The salt:
initial level: 10 kg
inflow rate: none
outflow rate: unknown

Answer 5

Question 6

What is the assumption about the salt?

Answer 6

Assumption: salt = always well mixed into water

Question 7

Concentration of salt =

Answer 7

Question 8

Dimensional analysis =

Answer 8

Question 9

What is the combined LRD for the salt and water?

Answer 9

Question 10

Example 2:

Given
tank w/ 25L water w/ 10kg salt mixed in
water inflow rate = 5L/min
water outflow due to gravity = modelled as FOS
- w/ rate constant = 0.1 min

Find how long will it take for 60 per cent salt = wash out system.

Answer 10

Question 11

What is the combined LRD for the salt and water with a rate constant?

Answer 11

Question 12

What the amt of water would look like in example 2?

Answer 12

Question 13

Example 3:

Given
tank w/ 80L water w/ 10kg salt mixed in
water inflow rate = 5L/min
water outflow due to gravity = modelled as FOS
- w/ rate constant = 0.1 min

Find how long will it take for 60 per cent salt = wash out system.

Answer 13

Question 14

What the amt of water would look like in example 3?

Answer 14