Reverse osmosis pure water equipment, how to improve the service life of reverse osmosis membrane?

1, pretreatment system design is reasonable.
The choice of the activated carbon, place charcoal powder leakage, prevent membrane polluted;
Water hardness is high, must pay attention to the softening treatment, prevent membrane blocked;
Higher water alkalinity, should pay attention to the adjustment of the PH value, prevent membrane blocked;
2, the water need to conform to the requirements of the reverse osmosis host into the water, including chlorine, hardness, turbidity, colloid, etc.
3, adding scale inhibitors, to prevent membrane plugging;
4, pay attention to check the pressure of reverse osmosis equipment (before the film pressure, film after)
5, pay attention to the regulation of water and concentrated water proportion, if long-term water ratio is higher, the membrane is also prone to clogging.