Q: Is a single 1*400GPD system superior to a dual 2*200GPD setup?
A: Choosing the 200GPD system offers multiple advantages, such as reduced adhesive usage during manufacturing, which significantly boosts salt rejection rates and facilitates superior water flow efficiency.
Q: When should membrane elements undergo cleaning?
A: It is crucial 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. Begin 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. The presence of elevated levels of organic matter in the water surpasses acceptable standards, which leads to fouling and eventual blockage of the RO membrane. This can compromise the system's performance.
3. Experience the unparalleled efficiency of this extraordinary RO film, which boasts a truly impressive recovery rate, ensuring that it delivers optimal performance and energy efficiency at every turn.
4. A notable limitation of the purifier is the lack of a flushing function. This absence can result in the gradual build-up of high-concentration brine within the RO membrane shell over time, potentially affecting the purifier's durability and overall effectiveness.
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