Ultrafiltration membrane protection tips you must know

There are many pollutants in water, especially in areas with poor water quality
.

We use Dow ultrafiltration membrane for preliminary treatment of raw water, but when there are too many impurities in the water, or the pretreatment is not good, the ultrafiltration membrane will be polluted
.

Once the contamination is severe, it will cause damage to the membrane, make it unusable and need to be replaced
.

In order to prevent this phenomenon, you must know the following ultrafiltration membrane protection tips to reduce the occurrence of ultrafiltration membrane fouling
.

After the ultrafiltration membrane has been used for a period of time, it needs regular backwashing and sewage treatment
.

For the widely used hollow fiber ultrafiltration membrane modules, the main filtration method is full flow filtration
.

Open the sewage valve regularly for sewage treatment.
Since the flow channel of the hollow fiber membrane is relatively small, it is easy to attach the dirt to the flow channel.
Therefore, the ultrafiltration membrane needs to be regularly backwashed, that is, the product water is passed from the produced water side to the influent water.
side, to peel off the dirt adhering to the surface of the film
.

The recoil frequency of the system is determined according to the turbidity of the water entering the ultrafiltration membrane, and it is generally better to use the automatic control method
.

If the quality of the raw water is too poor, it is necessary to do pretreatment, because the ultrafiltration membrane is a kind of polymer material with very fine pore size, so it must be pretreated.
Reduce the fouling of ultrafiltration membranes, thereby prolonging the use time
.

Ultrafiltration membranes are mainly made of porous materials and are a pressure-driven membrane separation process
.

The pressure value of the entire water purification system should not be greater than the initial design pressure value of the system
.

　　In order to reduce the pollution of Dow ultrafiltration membranes, we need to take effective measures to not take pollution seriously
.

Once the ultrafiltration membrane is used, when designing the Dow ultrafiltration membrane system, it is necessary to do a good job in the treatment of the Dow ultrafiltration membrane
.

In addition, the cleaning of the Dow ultrafiltration membrane is also very important, so these two points cannot be ignored, so as to reduce the pollution of the membrane, prolong the service time of the membrane, and reduce the cost of use
.