How to distinguish the authenticity of Hyde nanofiltration membranes?

As the sewage treatment industry becomes more and more mature, the corresponding function of each membrane element can "resist" a water purifier, such as reverse osmosis membrane, ultrafiltration membrane, Hyde nanofiltration membrane and other membrane elements, among which Hyde nanofiltration membrane is a dark horse flushed out, and its characteristics make it widely used. Today, I will introduce to you how to distinguish the authenticity of Hyde nanofiltration membranes?

Hyde nanofiltration membrane does not give a fixed concept in the academic community, but it belongs to a membrane element with filtration accuracy between ultrafiltration membrane and reverse osmosis membrane, under the action of differential pressure force, salts and small molecule substances can pass through Guangzhou Hydenon nanofiltration membrane, and macromolecular substances are intercepted, which can also be called selective reverse osmosis, which can be regarded as an extension of ultra-low pressure reverse osmosis membrane. However, compared with ultrafiltration membranes and reverse osmosis membranes, there are still certain differences.

Compared with reverse osmosis membranes: the obvious difference between the two is that the user can judge according to the water yield and the removal rate of monovalent ions, and the low water yield and high removal rate of monovalent ions prove that it is a HIDENeron nanofiltration membrane pretended to be a reverse osmosis membrane.

Compared with ultrafiltration membrane: the filtration accuracy of Hydenen's nanofiltration membrane is higher than that of ultrafiltration membrane, and the divalent ions in the water can be removed.

The above is a brief introduction to how to distinguish the authenticity of Hyde nanofiltration membranes, I hope it can help you.

Identification diagram of the authenticity of Hydeneron sodium filter membrane:

Hydranautics and Nitto will be printed on the sodium membrane elements and will have the origin information in the lower left corner of the package. The product code can also be used to identify authenticity.

Identification method of Hyde membrane in the United States:

1. Refurbished products.

Refurbished with shoddy products, some of the worn-out products refurbished, this appearance is more difficult to distinguish, but the performance is far inferior to the new American Hyde membrane.

2. Product labeling.

Origin: United StatesHyde MembraneOrigin: United States, Japan, and Shanghai, China.

Barcode: Each Hyde film product is equipped with a unique barcode number, with the barcode number can query the flow direction, origin, production date and other information of the Hyde membrane.

3. End plate identification.

The U.S. Hyde membranes all adopt the patented technology of rapid exhaust of the end plate, and the cutting-flow multi-well plate design, so that the fingers cannot touch the diaphragm. The end plate of the counterfeit product is different from the genuine product in that the end plate is designed in a blade type, without effective shielding, and the diaphragm can be directly touched with your fingers.

4. Diaphragm rolling.

Look at the tightness of the American Hyde film rolling, whether the looseness is good or not, there is generally a fixed number of rolls.

The timing of cleaning is mainly selected according to the change of the following parameters:

1. Under the normal feed water pressure, the water yield is 10% 15% lower than the normal value

2. In order to maintain the normal water production, the ground water supply pressure is increased by 10% and 15% after temperature correction.

3. The quality of the produced water is reduced by 10% and 15%, and the salt permeability rate is increased by 10% and 15%.

4. The pressure difference between each section of the system increases significantly.

How can I tell if a Hydenner nanofiltration device needs to be cleaned?

Standardized freshwater production has fallen by more than 10 percent.

The standardized salt permeability has increased by more than 10%.

In order to maintain a normal flow rate of fresh water, the pressure difference between the feed water and the brine water was increased by more than 10% after temperature calibration.

There are serious contaminants and fouling inside the unit.

Before the device is deactivated for a long time.

Routine maintenance of the device.

After the operation data is standardized, the water yield of the system is reduced by more than 15% compared with the initial value.

After the operation data was normalized, the salt transmittance increased by more than 10% compared to the initial value.

After the operation data is normalized, the pressure differential of the pressure vessel exceeds the initial value by more than 15%.