I want to use a HFM module in my experiment, but I lack knowledge about the design specifications of HFM. Also, what type of modules are best for separation purposes.
Actually, the main advantage of the hollow fiber or capillary design is the backwashability of the membrane. Due to the mechanical stability, the membrane can withstand high backwash pressure. But it is also limited in some cases for example, in layer-by-layer NF membranes, the excessive pressure may flush the multiple layer. Some hollow-fiber or capillary membanes are available with several lumes in one fiber (e.g. the multibore®️ UF from inge.dupont) which give you a high packing density, which is definitely an advantage.
I hope that I could answer your question. Which type of membrane you aim to use?
You can check the paper below for the answer:
To design a hollow fiber membrane the things you should consider is the desired output flux or flow rate. Normally for backwashing, the flow rate should be 3 times the feed flow rate. So you must consider that your membrane should sustain that amount of pressure.
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