Precautions for the operation of reverse osmosis water treatment equipment

Reverse osmosis water treatment equipment originated in the United States. It not only uses water treatment technology, but also combines our unique process design. The product quality is in a leading position in the same industry and has been supported and recognized by a large number of new and old users. The following editor will give you a detailed introduction to the operation precautions of reverse osmosis water treatment equipment, and hope it will be helpful to you.

Operation precautions of reverse osmosis water treatment equipment:

  1. The hydrolysis of the cellulose acetate membrane is likely to cause deterioration of the performance of the reverse osmosis device. For this reason, the pH value of the water must be strictly controlled, and the pH value of the feed water must be maintained at 5-6, and the composite membrane can be at the feed water PH3-PH11 Run under the scope.
  2. When the injected sodium hyporecordy is insufficient and the free chlorine in the feed water cannot be measured, slime will occur on the membrane module of the reverse osmosis device, and the pressure difference of the reverse osmosis device will increase. However, for composite membranes and polyamide membranes, the amount of free chlorine entering the membrane module must be strictly controlled. Exceeding the specified value will cause the membrane to oxidize and decompose.
  3. If water with an F1 value exceeding the standard is supplied to the reverse osmosis device as feed water, dirt will adhere to the surface of the membrane module, so it must be cleaned to remove the dirt.
  4. Excessive feed water flow will deteriorate the membrane module in advance, so the feed water flow cannot exceed the design standard value. In addition, the flow of concentrated water should be avoided to be less than the design standard value. If the concentrated water flow is too small, it will cause Uneven flow occurs in the pressure vessel of the reverse osmosis device and dirt is deposited on the membrane module due to excessive concentration.
  5. Even if the high-pressure pump of the reverse osmosis device is interrupted for a short period of time, it may cause the device to malfunction.
  6. The inlet pressure of the reverse osmosis device must be maintained with a proper margin, otherwise the salt removal rate will be reduced due to the lack of proper compaction.
  7. When the reverse osmosis device is stopped, the water in the reverse osmosis device is replaced by low-pressure feed water. This is to prevent the precipitation of silica during shutdown.
  8. Always pay attention to the pressure difference of the precision filter. The main reason for the sharp rise in pressure difference is the leakage of the turbidity of the precision filter. On the contrary, the reason for the sharp drop in pressure difference is the damage of the precision filter element and the loosening of the tightening screw of the precision filter element.
  9. When the pressure difference between the inlet and outlet of the reverse osmosis device exceeds the standard, it indicates that the membrane surface has been contaminated or the feed water flow rate is above the design value. If the pressure difference problem cannot be solved by flow adjustment, the membrane should be cleaned.
  10. In the summer, when the feed water temperature is high, the flow rate of the produced water is large, and sometimes the operating pressure has to be lowered. This will cause the quality of the produced water to decrease. To prevent this, the number of membrane modules can be reduced, while the operating pressure remains at a higher level.
Underground Reverse Osmosis Plant

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