What is the purpose of a chemical feed system in RO systems?

The purpose of a chemical feed system in reverse osmosis (RO) systems primarily revolves around optimizing water quality and system performance. Lowering the feed water pH is crucial, particularly when dealing with specific contaminants or scaling issues that can impact the efficiency of the RO membranes.

When the pH of the feed water is high, the levels of certain ions, such as calcium and magnesium, can increase the potential for scaling on the membrane surfaces. By lowering the pH, the solubility of these ions improves, helping to prevent scale formation, which can drastically affect the performance and lifespan of the RO system.

This adjustment also improves the membrane’s ability to reject certain contaminants, enhancing overall purification efficiency. Therefore, a chemical feed system that focuses on adjusting the feed water pH plays a vital role in maintaining optimal conditions within the RO process, ensuring that the system operates effectively over time.