uf membrane
MBR curtain membrane:
In fact, the inner lining of the curtain is made of PVN fiber, which has a strong mechanical strength compared with that of the inner lining of the curtain. In fact, the inner lining of the curtain is made of PVN fiber, which is called the "hollow fiber", and the tensile strength is very strong.
MBR flat membrane:
Because the appearance of flat membrane is similar to that of wood, it is also called plate MBR membrane. MBR flat membrane has good water permeability, contains a support layer with high mechanical strength, and is an original double-layer structure, which is not easy to damage the membrane and omit dirt components. The device is composed of one or more ultra-fine filter membrane components and corresponding water production pipe, aeration pipe and support.
What is the difference between MBR curtain membrane and flat membrane?
Price:
When membrane modules of the same size are used, the price of MBR flat membrane is higher than that of curtain membrane due to different manufacturing processes.
Performance:
MBR flat membrane can maintain stable water yield under the condition of high activated sludge concentration, while curtain membrane will be affected to a certain extent when the activated sludge concentration is too high, but the impact is not great.
service life:
The service life of MBR flat membrane is generally 3-5 years, while the curtain membrane can usually be used for about 2-4 years. Under normal use, the specific service life needs to be determined according to the actual use of users. In general, the replacement cycle of flat membrane is longer than that of curtain membrane.
Anti pollution performance:
In the process of use, if the pretreatment of MBR system fails, resulting in solid pollutants entering the MBR membrane, the flat membrane can rely on its structural advantages to avoid the pollution of large solid pollutants. The curtain membrane will intercept pollutants, which will not only affect the water production, but also cause the blockage of membrane modules.
Area covered:
Due to the structure of MBR flat membrane, the floor area is larger than that of curtain membrane. Under the condition of the same water production, the membrane pool of flat membrane is much larger than that of curtain membrane.
Replacement of membrane module:
If it is a single membrane module, the flat membrane is lighter and easier to install than the curtain membrane. However, if multiple membrane modules need to be used, the number of flat membrane membranes is large and the installation is more troublesome.
Application fields:
Curtain membrane is mainly used for domestic sewage, municipal wastewater and other domestic sewage, as well as industrial wastewater and pharmaceutical wastewater. Flat membrane can be used not only in these fields, but also in landfill leachate, electroplating wastewater, refractory organic wastewater and other projects.
Operation and maintenance:
If the flat membrane is damaged during use, it only needs to replace the damaged membrane. When the curtain membrane wire breaks to a certain number, the whole module will be scrapped and the whole membrane module needs to be replaced. In addition, the curtain membrane needs to be cleaned frequently. Generally, it needs to be cleaned once a week, while the flat membrane does not need to be cleaned so frequently. It can be cleaned once every 3-6 months.
