What are the factors that affect the operation of reverse osmosis membrane?
The factors affecting the operation of reverse osmosis membrane are as follows:
1. Stress. The increase of feed water pressure increases the water flux of the membrane, but the increase of pressure does not affect the amount of salt through the membrane. Under the condition that the amount of salt through the membrane remains unchanged, when the water flux increases, the salt content of the product water decreases and the desalting rate increases.
2. Temperature. When the water temperature is increased and other operating parameters remain unchanged, the product water flux and salt permeability increase.
3. Salt content of water supply. The increase of salt content in water supply affects the salt permeability and product water flux, resulting in the decrease of product water flux and desalinity.
4. Recovery rate. When the recovery rate of product water increases, the product water flux decreases and the desalting rate also decreases.
5. Feed water PH value. The desalting rate and water flux are relatively constant within a certain range of PH value, and the maximum desalting rate is PH 8.5.
The above is an introduction to the factors affecting the operation of reverse osmosis membranes. So in the use of reverse osmosis membrane in order not to affect its operation, in use must pay attention to these.
