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     The automotive industry will forever bid farewell to the era of internal dancing，Entering a brand new era of anti fog，

The non hydrophilic ultrafiltration membrane shown in the above figure，During the mass transfer process of filtration，colloid、oil、protein

Pollutant substances such as quality adhere to the surface of the membrane in a cake like manner，It is difficult to clean dry through simple backwashing

clean，Non hydrophilic membranes have high operating pressure and high frequency of chemical cleaning；And hydrophilic ultrafiltration membranes are used for filtration

During the mass transfer process of filtration，colloid、oil、Proteins and other pollutants aggregate into spherical shapes on the membrane surface，

This spherical polymer，Easy to detach from the membrane surface，It can be cleaned by simple backwashing

wash，Hydrophilic ultrafiltration membrane has low operating pressure and low frequency of chemical cleaning。

    The above figure compares the backwashing and chemical cleaning of hydrophilic and non hydrophilic ultrafiltration membranes，

in compliance withThe hydrophilic ultrafiltration membrane shown in the figure has a relatively long chemical cleaning cycle、Chemical cleaning has a good recovery、

In everyWithin one chemical cleaning cycle，The flux recovery after backwashing is close to100%；Non hydrophilic super

The chemical cleaning cycle of the filter membrane is short、The flux recovery after backwashing in each chemical cleaning cycle is only

80--90%；So in water treatment engineering，Hydrophilic ultrafiltration membranes are superior to non hydrophilic ultrafiltration membranes

Having obvious advantages，Can be used within its lifespan，Well maintained at a stable flow

---design flow。

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