Q: Is a single 1*400GPD system superior to two 2*200GPD systems?
A: The 200GPD system is preferable. It ensures less adhesive use during production, offers an improved salt rejection rate, and enhances overall water flow.
Q: When should the membrane elements be cleaned to maintain optimal performance?
A: It is crucial to clean the membrane elements when any of the following conditions are observed:
A decrease of 10-15% in normalized permeate flow.
An increase of 10-15% in normalized permeate total dissolved solids (TDS).
An increase of 10-15% in normalized pressure drop between feed and reject.
Q: What are the steps to resolve RO Membrane Blockage effectively?
A: 1. Initially, ascertain if the home RO System membrane is genuinely blocked.
2. Assess the regional water quality to determine if the primary scale components are chiefly calcium and magnesium salts.
3. Prepare a solution with 10% hydrochloric acid or a diluted detergent (available descaling agents), alongside a specialized RO membrane cleaning agent based on scale composition. Submerge the RO membrane in this solution for 24 hours.
4. Subsequently, rinse the RO membrane thoroughly after soaking. Utilize water produced by ultrafiltration for rinsing. During this process, close the pure water outlet and open only the wastewater outlet.
Q: Why does the RO membrane experience blockage within one to two months?
A: 1. The raw water may contain high salt content, leading to excessive scale formation.
2. The water's organic matter content might exceed safe standards, causing the RO membrane to foul and become clogged.
3. A high RO film recovery rate can contribute to blockage.
4. The purifier might lack a flushing function. Over time, this results in high-concentration brine deposits within the RO membrane shell.