What is the general material of MBR membrane? Is it expensive?

1. Polymer organic membrane materials: polyacrylonitrile, polysulfone, fluoropolymer, etc.

Organic membrane is cheap, the manufacturing process is mature, and the pore size and form are diverse, but it is easy to be polluted during operation, with low strength and short service life.

2. Inorganic membrane: it is a semi-permeable MBR membrane made of inorganic materials, such as metals, metal oxides, ceramics, porous glass, zeolites, inorganic polymer materials, etc.

The advantages of using polyvinylidene fluoride membrane in MBR are: high flux, relatively low energy consumption, and great competitiveness in treating high-concentration industrial wastewater; The disadvantages are: the current dosage is small, and there are some problems in the processing and preparation of the membrane.