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The Method of Preventing Scaling of Reverse Osmosis Water Purification Equipment
Dec 17, 2018

Reverse osmosis pure water equipment has been applied to many fields, and the good effluent quality of the equipment has also been widely recognized. However, if the reverse osmosis water purification equipment will be fouled after using it for a period of time, what is the method to prevent the scale of the reverse osmosis water purification equipment? Next, we will introduce you in detail:

1. Do a good job of pretreatment of raw water. In particular, pay attention to the qualification of the pollution index. At the same time, it should also be sterilized to prevent the growth of microorganisms in the device, and pay attention to the damage of chloride ions to the membrane.

2. In the operation of reverse osmosis water purification equipment, it is necessary to maintain proper operating pressure. Under normal circumstances, increasing the pressure will increase the water production, but if it is too large, the membrane will be compacted.

3. During the operation of the reverse osmosis water purification equipment, the turbulent flow state on the brine side should be maintained to reduce the concentration polarization of the solution on the surface of the membrane to avoid precipitation of some insoluble salts on the membrane surface.

4. When the reverse osmosis water purification equipment is out of service, the medicated rinsing should be carried out in the short term, and formaldehyde protection should be added in the long term.

5. When the water production of reverse osmosis equipment is significantly reduced, indicating membrane fouling or contamination, chemical cleaning should be carried out.

6. Regularly analyze the water quality of the raw water. According to the water quality, adjust the dosage of the scale inhibitor according to the dosing program provided by the Technical Support Department.

7. When there is an abnormality in the reverse osmosis system, stop it immediately and deal with it to avoid the expansion of the accident.

8. Strictly prevent the running, taking, dripping and leaking of the dosing equipment, and add the liquid to the reverse osmosis water to really prevent scaling.

9. It is recommended to flush the flushing mode after the reverse osmosis water purification equipment is shut down with demineralized water.


The use of any equipment requires maintenance and maintenance. For the maintenance of reverse osmosis water purification equipment, it is important to maintain the reverse osmosis membrane. Therefore, it is very important to master the method of preventing fouling of reverse osmosis water purification equipment.


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