How Can Membrane Filter Presses Be Produced Locally in Iran?

[mohamad mousavi]

Hi.i am reza from iran.
really i don't know how many membrane have been introduced and what kind of it have being discussed here.but anyway ask my question and hope to get useful answers.
in membrane filter press the filter press producers importing membrane from china. no one and no company have produced it by itself up to now here.it has some special specification in filtration industry . as you can see in this video:

i want to know how to produce it by our own.what is that's formula?i mean the same formula filter press producers use to produce it?
can anyone give some information about that?
i can pay for it!
mmousavi_22@yahoo.com
thanks.

 

[Achy47]

Hello Reza,

Thank you for your question about membrane filter press production. The use of membrane filters in filtration industry is becoming increasingly popular due to their high efficiency and effectiveness in separating solids from liquids. There are several types of membrane filters available in the market, such as microfiltration, ultrafiltration, nanofiltration, and reverse osmosis.

To produce membrane filters, there are several steps that need to be followed. The exact formula for producing membrane filters may vary depending on the type of filter and the specific manufacturer. However, the basic steps for producing membrane filters are as follows:

1. Polymer Selection: The first step in membrane filter production is selecting the appropriate polymer. The most commonly used polymers for membrane filters are polyethersulfone (PES), polyvinylidene fluoride (PVDF), and polytetrafluoroethylene (PTFE).

2. Polymer Dissolution: The selected polymer is then dissolved in a suitable solvent to form a polymer solution. The concentration of the polymer in the solution depends on the desired thickness of the membrane.

3. Membrane Casting: The polymer solution is then cast onto a flat surface, such as a glass plate, using a casting knife or a coating machine. This process is called membrane casting.

4. Phase Inversion: After casting, the membrane is immersed in a nonsolvent bath, which causes the polymer to phase-invert and form a porous membrane structure.

5. Drying and Curing: The membrane is then dried and cured to remove any remaining solvent and to stabilize the membrane structure.

6. Cutting and Sealing: Once the membrane is cured, it is cut into the desired shape and size and sealed onto a support material, such as a mesh or cloth.

The exact formula for producing membrane filters also depends on the specific requirements of the filtration industry. For example, the pore size and thickness of the membrane may vary depending on the application and the type of solids being filtered.

I hope this information helps you in understanding the basics of membrane filter production. If you need more specific and detailed information, I suggest contacting a membrane filter manufacturer or a filtration expert. They will be able to provide you with more specific information and help you with your production process.