The membrane distillation modules I work with have large dimensions and large membranes must be made. But in some membranes, a few tiny holes are created in different parts of the membrane, possibly due to dust or any other unknown reason. Is there a method to block these two or three small holes and use the membrane? Otherwise, I have to throw away the perforated membranes and fabricate new membranes again.
Best regards
Could you please provide me some details about your fabricated membrane?
It is early need to solve this problem that what types of materials & methods you applied to fabricate your membrane. Also the nature of membrane is important such as is it biopolymeric membrane or not?
Is it porous or nonporous? Is it hydrophilic or hydrophobic? Or did you used any plasticizer / filler / additives etc?
Dear Md. Mahmudur Rahman ,
Thank you so much for your response. I edited my question. My flat sheet membranes are fabricated from PVDF and are porous and hydrophobic.
These holes are only in some membranes even when no additives are used. However, I wanna use these membranes in the module and check their performance because a lot of materials are used to fabricate these long membrane sheets.
Probably I can use a special type of glue in a very small amount to cover these tiny holes. But what is that glue?
Or, probably, there are some other solutions.
What type of plasticizers I can use in hydrophobic PVDF membranes?
Best regards
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