Question

Experiment Pressure Differential (kPa) k (cm²) Rm (m²) 1 100 13.6 8.25 x 106 4 400 27.6 1.18 x 107

          Experiment
Pressure Differential
(kPa)
k
(cm²)
R<sub>m</sub>
(m²)
1
100
13.6
8.25 x 10<sup>6</sup>
4
400
27.6
1.18 x 10<sup>7</sup>

Added by Marina G.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

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Solved by Expert Shahina -

Step 1

From the change in membrane resistance (Rm) and fouling coefficient (k) with the applied pressure, we can infer that as the pressure increases, both the membrane resistance and fouling coefficient increase. This means that the membrane becomes more resistant to Show more…

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We're learning about the membrane filtration process as applied in the food industry. Here are my results from an ultra-filtration and flux experiment using apple juice. a. What can you infer from the change in membrane resistance (Rm) and fouling coefficient (k) with the applied pressure? b. What is the role of the effect of pressure on the membrane resistance and fouling coefficient? c. What is the effect of pressure on the total resistance? d. Does the pressure influence total resistance in the same manner as Rm and k? Why? e. Discuss membrane polarization in the context of the experiment performed. Under what conditions would you expect it to be more of an issue? Experiment Pressure Differential (kPa) k (cm2) Rm (m2) 100 400 13.6 27.6 8.25 x 106 1.18 x 107 4