Increased conductivity of ultrapure water? Find the reasons from these aspects

       The ultra-pure water machine pre-processes the tap water through a precision filter element and an activated carbon filter element, filters particles such as sediment and adsorbs odors, etc., to make the tap water cleaner, and then purifies and desalts the water through a reverse osmosis device, and the purified water enters the water storage tank. When stored, the water quality can reach the national three-level water standard, and the waste water produced by the reverse osmosis device is discharged.

The conductivity of the ultra-pure water machine is one of the key parameters to measure whether the water quality of the ultra-pure water machine is qualified. The conductivity of the ultra-pure water machine increases during operation, which is usually abnormal. What are the reasons for it, let's explain it point by point.

1. We need to check the raw water of the ultrapure water machine. If the conductivity of the raw water changes, you can adjust the conductivity of the raw water, and then observe the change to see if it returns to normal.

2. Check whether there is any problem with the pretreatment, especially whether the activated carbon powder leaks into the resin tank and whether it pollutes the resin.

3. If the RO reverse osmosis membrane of ultrapure water machine is polluted and blocked, it will also lead to high conductivity. If it is blocked due to pollution, the RO of the ultrapure water equipment can be cleaned according to the cleaning requirements, and the reverse osmosis membrane can restore the conductivity. It is worth noting that we should also pay attention to whether the RO membrane is used for too long, and it should be replaced in time to ensure the quality of the effluent.

4. The reduction in the desalination rate of the ultrapure water machine may also lead to an increase in the conductivity of the ultrapure water equipment. We need to check the reverse osmosis membrane module, if there is a problem, we just need to replace it. If it was normal before, the conductivity suddenly increased and the displacement increased, which is most likely caused by the leakage of the sealing ring connected to the reverse osmosis membrane module, you can try to replace the sealing ring.

5. Operation problems, whether there is instant shutdown or improper operation.

The above is the cause of the increase in the conductivity of ultrapure water machines. Only by finding the correct cause of the failure can we better find a solution, so as to deal with the problem faster and ensure the normal operation of the equipment.