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Common troubleshooting methods for reverse osmosis

Sep 11, 2018

The reverse osmosis water treatment equipment is usually composed of raw water pretreatment system, reverse osmosis purification system and ultra-pure post-treatment system.

The purpose of pretreatment is to make the raw water meet the requirement of reverse osmosis membrane separation module, and to ensure the stable operation of reverse osmosis purification system.

Reverse osmosis membrane system is an economical and effective method to remove more than 98% ions, organics and 100% microorganisms in raw water.

The ultra-purified post-treatment system further removes microions, organics and other impurities in the reverse osmosis pure water through a variety of integrated technologies to meet the requirements of the final water quality indicators for different purposes.

Here are a few common failures.

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A. After the standardization of the reverse osmosis water treatment equipment, the desalination rate decreases, and the water conductivity increases in the reverse osmosis equipment system.

B. The pressure drop increases, and the pressure difference between the inlet water and the concentrated water increases while the inflow flow rate remains unchanged.

C. After the standardization of reverse osmosis water treatment equipment, the water yield decreases, and it is usually necessary to increase the operating pressure to maintain the rated water yield.

However, after infiltration standardization, the water yield decreases, and we can find the reasons according to the following three situations:

1. When the yield of water decreases in one section of the reverse osmosis system, there is deposition of particulate pollutants.

2. When the water yield of the latter part of the reverse osmosis system decreases, there is scale pollution.

3. If the water yield of all sections of the reverse osmosis system is reduced, there is pollution blockage.