Q: Is a single 1*400GPD system superior to a dual 2*200GPD setup?
A: Opting for the 200GPD system presents several benefits, such as minimized adhesive usage during manufacturing, which significantly enhances salt rejection rates and facilitates superior water flow efficiency.
Q: When should membrane elements undergo cleaning?
A: It is imperative to clean the membrane elements under the following conditions:
When experiencing a noticeable reduction of 10-15% in normalized permeate flow, it's time for a cleaning.
A marked 10-15% increase in normalized permeate total dissolved solids (TDS) is an indicator for cleaning.
A significant rise of 10-15% in the normalized pressure drop between the feed and reject streams signals the need for cleaning.
Q: What are the steps to resolve RO membrane blockage?
A: 1. Start by verifying whether the membrane in your home RO system is indeed blocked.
2. Examine the local water quality, focusing on whether calcium and magnesium salts are the primary scaling components.
3. Prepare a cleaning solution with 10% hydrochloric acid or a commercially available descaling detergent, combined with a specialized RO membrane cleaning agent, based on the scale composition. Soak the RO membrane for a full 24 hours.
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.
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.
2. Elevated levels of organic matter in the water exceed acceptable standards, resulting in RO membrane fouling and subsequent blockage.
3. This remarkable RO film boasts an exceptional recovery rate, ensuring optimal performance and efficiency.
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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