Reverse Osmosis Membrane Acid Cleaner (Liquid Acid) EQ-501

Reverse Osmosis Membrane Acid Cleaner (Liquid Acid)EQ-501

I. Performance and Applications

EQ-501 is a low-pH liquid formulation designed to remove scale deposits such as metal hydroxides, calcium carbonate, and other salts. It is suitable for aromatic polyamide reverse osmosis membranes, hollow fiber membranes, as well as nanofiltration (NF) and ultrafiltration (UF) systems, and can extend membrane operational life.

II. Technical Specifications

III. Dosing Instructions

Calculate an appropriate dosing concentration based on water quality analysis reports and system conditions. Typically, the product is dosed into the cleaning tank at a concentration of 2–4%.

IV. Cleaning Instructions

▲ Before cleaning, it is essential to identify the type of fouling affecting the RO membrane elements and the cause of such fouling to ensure targeted treatment;

▲ After cleaning, analyze the cause of fouling and implement corresponding pretreatment preventive measures;

▲ During the cleaning process, maintain the temperature of the cleaning solution within the required range (25–35℃);

▲ The cleaning flow rate should follow the recommendations of the membrane manufacturer or chemical supplier. Additionally, the flow rate and soaking duration should be determined based on the type and severity of membrane fouling (if no recommendation is available, our technical engineers can provide guidance based on the actual system conditions);

▲ For multi-stage RO systems, it is best to clean each stage separately to achieve optimal results. If the cleaning solution becomes turbid or the pH exceeds the recommended range, prepare a new cleaning solution or replenish the cleaner. Rinse the system with RO product water before putting it back into operation.

V. Packaging and Storage

※ Packaged in plastic drums, 25 kg or 20 kg per drum;

※ Physicochemically stable. Store in a cool place. Minimum storage temperature: -15℃. Shelf life: 1 year.

VI. Safety and Protection

This product is acidic. Use appropriate labor protection during operation. Avoid contact with skin and eyes. In case of contact, rinse thoroughly with plenty of water.