Author：Huamo Water treatment materials FROM：Water filter membrane manufacturer TIME：2021-12-17
Reverse osmosis system is an indispensable key step for best ro membrane filter. However, reverse osmosis system also has a hidden danger, that is, the surface of reverse osmosis element membrane is easily polarized by the concentration of substances or other intercepting components, which affects the effluent. Water quality. In addition to considering the technology of the reverse osmosis membrane 3, improvement measures must be taken in the operation of the equipment.
First, we can try to increase the linear velocity of the liquid passing through the surface of reverse osmosis element membrane, reduce the liquid retention time, improve the efficiency of the liquid in the system equipment, reduce the absorption time of the substance concentration, and the flow rate expands the substance concentration, making it difficult to absorb.
Add a pulse generator installation in the steps of the water treatment equipment, and the pulse amplitude and frequency are different. Generally, the greater the amplitude or the higher the operating frequency, the greater the flow rate. The stirrer is commonly used in all test installations, and the experience indicates that the mass transfer coefficient is in a linear relationship with the number of revolutions of the stirrer.
To prevent the scale of reverse osmosis element membrane in the water treatment equipment, hydrochloric acid or sulfuric acid is added to adjust the pH value. However, due to the corrosion and leakage of the acid system, operators generally add dispersed reverse osmosis scale inhibitors to maintain the normal operation of the water treatment system.