Liquiclean 103

Summary

Product Identification

• Product Name: Liquiclean 103
• Product Type: Membrane cleaner
• Manufacturer: Water Technologies & Solutions (SUEZ)

Description

Liquiclean 103 is a low pH liquid formulation designed to remove metal hydroxides, calcium carbonate, and similar scales from RO, NF, UF, and MF membranes. It is a blend of solubilizing and complexing agents. When used with an alkaline cleaner, it provides effective cleaning for organic and particulate removal, aiming to extend system run times and membrane life.

Features

• Suitable for all membrane types.
• Liquid and buffered for effective pH over a range of dilutions.
• Enhanced performance at elevated temperatures.
• No adverse effects with repeated use.
• Low foam formulation.
• Optimum results when used with Kleen MCT411 or Kleen MCT511.

Typical Applications

This cleaner is used to remove scale that forms on membrane surfaces due to dissolved solids precipitating from incoming water. Scaling from hardness and metal salts can reduce water flow, increase operating pressure, and potentially cause irreversible membrane damage or affect product water quality. Cleaning is advised when there is a significant decrease in normalized permeate flow, an increase in pressure drop, or an unacceptable increase in salt passage.

Feed Requirements

Dilution

• 1 pound (0.45 kg) of Liquiclean 103 per 5 gallons (19 L) of water.
• 1 gallon (3.8 L) of Liquiclean 103 per 50 gallons (189 L) of water.

Material Compatibility

Corrosion-resistant equipment is recommended.

• Rating A: Butyl, Viton A, Buna N, Hypalon, Neoprene, EPR, Natural Rubber, Viton Lithurge, Kynar, Polyethyl HDCL, Polypropylene, Polysulfone, Teflon.
• Rating B: LB, SS, Tygon, Polyethyl HD & LD, PVC, Nylon.
• Rating C: (No materials listed in extract)
• Rating X: LCS, Al.

General Cleaning Instructions

1. Inspect and clean the cleaning tank, hoses, and install new cartridge filters.
2. Fill the cleaning tank with RO permeate or DI water. Activate agitation or recirculation.
3. Slowly add Liquiclean 103 according to the dilution ratios and mix thoroughly.
4. Adjust solution temperature to the recommended level (consult SUEZ representative if manufacturer's recommendation is unavailable).
5. Check and adjust solution pH to 2.5 - 3.5 or as recommended by the membrane manufacturer. Use NaOH or other recommended chemicals to raise pH, and hydrochloric acid to lower pH.
6. Circulate the solution through one stage at a time in the feed flow direction for 30 minutes at the manufacturer's recommended flow rate. If unavailable, contact SUEZ. Pressure should be less than 60 psig (4.2 kg/cm²) to minimize permeate production.
7. For heavy fouling, divert the first return flow (up to 15% of tank volume) to drain. Clean each stage separately in multi-stage systems.
8. If the cleaning solution becomes turbid or discolored, or if pH or temperature moves out of range, dump the tank and prepare a fresh solution for each stage.
9. Rinse with RO permeate before returning the system to service.
10. Divert product water to drain until residual cleaning solution is rinsed from the system when returning to service.

A soak period may be beneficial depending on the fouling; consult your SUEZ representative.

Safety Precautions

A Material Safety Data Sheet (MSDS) is available upon request.

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Disclaimer: This extraction may miss figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror