The two-stage reverse osmosis equipment is a process in which the first stage reverse osmosis permeate water is sent to the second stage reverse osmosis system by the second stage high-pressure pump for treatment after the PH value is adjusted, so as to obtain the permeate water. Today, I mainly introduce you to the problems that should be paid attention to when using the two-stage reverse osmosis equipment.
1. Excess feedwater flow will degrade the membrane module in advance, so the feedwater flow cannot exceed the design standard value.
2. Even if the high-pressure pump of the device is interrupted for a very short time, the device may fail.
3. Strictly control the PH value of water, the PH value of feedwater must be maintained at 5-6, and the composite membrane can operate within the range of feedwater PH3-PH11.
4. When the reverse osmosis device stops, low pressure water supply shall be used to replace the water in the reverse osmosis device.
5. When the differential pressure between the inlet and outlet of the reverse osmosis device exceeds the standard, it indicates that the membrane surface has been polluted or the water supply flow is above the design value.
6. When the amount of sodium hypochlorite injected is insufficient and the free chlorine in the feedwater cannot be measured, there will be slime on the membrane module of the reverse osmosis device, and the differential pressure of the reverse osmosis device will increase.
This is a brief introduction to the problems that should be paid attention to in the two-stage reverse osmosis equipment. I hope it will be helpful to you. For more information, please consult Shangguan online or call: 18118113112 13773235578
