Question

2000 kg of water containing 20% dye is treated with 1000 kg of activated carbon to

purify the water in a counter-current adsorption column.

The equilibrium data is as follows:

X (kg dye/kg carbon) 0 0.05 0.1 0.2 0.4 0.5

Y (kg dye/kg water) 0 0.03 0.05 0.11 0.26 0.36

a) Calculate the number of stages needed for the process if the final concentration of

dye in water should not be more than 5%. 10 CO2

b) If the real column is only 85% efficient, calculate the number of real stages

required 5 CO2

c) What do you think will happen if the process is conducted co-currently? Do you

expect different separation? Give reasons. (maximum 150 words) 5 CO1

d) For the above process, if the separation process has to be improved, what

necessary steps will you take and why?​

Answer 1

Answer:

I not know the answer of these question