Q: When should membrane elements undergo cleaning?
A: It is imperative to clean the membrane elements under the following conditions:
If you notice a 10-15% reduction in normalized permeate flow, it's time for a cleaning to maintain efficiency.
A marked 10-15% increase in normalized permeate total dissolved solids (TDS) indicates the need for cleaning to preserve water quality.
A significant rise of 10-15% in the normalized pressure drop between the feed and reject streams signals the need for cleaning to ensure optimal system performance.
Q: What are the steps to resolve RO membrane blockage?
A: 1. Begin by verifying whether the membrane in your home RO system is indeed blocked to accurately diagnose the issue.
2. Examine local water quality, focusing on whether calcium and magnesium salts are the primary scaling components affecting the membrane.
3. Prepare a cleaning solution with 10% hydrochloric acid or a commercially available descaling detergent, combined with a specialized RO membrane cleaning agent tailored to the scale composition. Soak the RO membrane for a full 24 hours for thorough cleaning.
4. After the soak, thoroughly rinse the RO membrane using water produced by ultrafiltration. Ensure the pure water outlet is closed and the wastewater outlet is open to achieve effective flushing and restoration of efficiency.
Q: Why does RO membrane blockage occur within one to two months?
A: 1. High salt content in the raw water leads to excessive scaling, causing blockages and impacting performance.
2. Elevated levels of organic matter in the water exceed acceptable standards, resulting in RO membrane fouling and subsequent blockage, necessitating regular maintenance.
3. This remarkable RO film boasts an exceptional recovery rate, ensuring optimal performance and efficiency, setting a new standard in water treatment technology.
4. One significant drawback of the purifier is the absence of a flushing function, which leads to the accumulation of high-concentration brine over time within the RO membrane shell, potentially impacting its longevity and effectiveness.
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