Reverse osmosis membranes are usually installed on water purifiers. Even many customers need to know what kind of reverse osmosis membrane is used before they buy water purifiers. So everyone knows how to distinguish the quality of reverse osmosis membranes and how Reverse Osmosis Systems Supplier(KOKOELECTRIC) can troubleshoot.

Reverse osmosis membrane is the core element to realize reverse osmosis. It is an artificial semi-permeable membrane with certain characteristics, which is made by simulating biological semi-permeable membrane. Generally made of polymer materials. Such as cellulose acetate film, aromatic hydrazide film and aromatic polyamide film. The diameter of the surface micropores is generally between 0.5 and 10 nm, and the permeability is related to the chemical structure of the membrane itself. Some polymer materials have good repellency to salt, but the water transmission rate is not good. Some polymer materials have more hydrophilic groups in their chemical structure, so the water transmission speed is relatively fast. Therefore, a satisfactory reverse osmosis membrane should have appropriate permeability or desalination rate.

The decline of desalting rate and water yield is the most common fault in reverse osmosis and nanofiltration systems. Blockage of the water inlet passage of membrane element and the increase of component pressure difference are another typical fault. If the desalting rate and water yield decline relatively gently, it indicates that the system has normal fouling, which can be treated by proper and regular cleaning.

However, rapid or sudden performance decline indicates that the system has defects or misoperation, and it is necessary to take corresponding corrective measures as soon as possible, because any delay in treatment will lose the opportunity to restore the system performance, and at the same time, extremely low water production and extremely high water and salt production TDS will also occur. Normal recording of operating data and standardization of system performance are necessary for early detection of potential problems. It includes correct correction of all instruments. Without accurate data, it may be too late when problems occur.

Once performance degradation is found, the first step to solve the problem is to determine the location of the problem and find out the cause of the problem, which can be realized by using an operating parameter record table or some on-line measuring instruments. If the system is equipped with necessary sampling points or instruments, troubleshooting can be carried out more effectively.

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