RoClean L212

Summary

Product Identification

• Product Name: RoClean L212 Green
• Product Type: High pH liquid cleaner
• Certifications: NSF International under NSF/ANSI Standard 60 (off-line cleaner in drinking water systems)

Description

RoClean L212 Green is an EDTA and Phosphate Free liquid cleaner formulated to remove silt and organic foulants. It is effective against colloidal silica, clays, organic color, and bioslime from spiral wound polyamide elements. This product is particularly effective in removing bioslime and solids in element feed spacers.

Product Information

Specifications

• Appearance: Clear, colorless to amber liquid
• pH (2% solution): 11.7-12.7
• Specific Gravity (@25°C): 1.1-1.2

Performance Benefits

• Specialized blend of proprietary buffers, surfactants, and chelants to dissolve organic foulants and disperse colloidal particles.
• Compatible with polyamide membranes from all major manufacturers.
• Highly buffered to resist pH changes during the cleaning process.
• Suitable for use with other Avista cleaners.

Packaging and Storage

Standard regional pack sizes include:

• Pail: 45 lb (20 kg)
• Drum: 500 lb (200 kg)
• IBC tote: 2500 lb

Information on drumless or bulk tanker delivery is available on request.

Instructions for Use (Cleaning)

1. Fill the cleaning tank with RO permeate or deionized water.
2. Heat the solution to the maximum acceptable temperature (according to membrane manufacturer's guidelines).
3. Add sufficient RoClean L212 to create a 2% wt/wt solution for moderate to severe fouling, or a 1% wt/wt solution for mild fouling.
4. Recirculate the solution for adequate mixing.
5. Run the cleaning solution through each RO system stage, one at a time, for a minimum of 60 minutes at the flow rate recommended by the membrane manufacturer.
   • For 4-inch elements: 10 gpm (2.4 m³/hr) per vessel.
   • For 8-inch elements: 40 gpm (9.0 m³/hr) per vessel.
6. For heavily fouled membranes, if the cleaning solution becomes discolored or turbid, discard up to 15% of the solution volume. A soaking period of up to 8 hours may also be beneficial.
7. Monitor the pH of the solution during cleaning. If the pH remains in range and the solution is not turbid, it may be used for subsequent stages. If the pH falls, prepare a new batch and repeat steps 1-4.
8. After cleaning, rinse membranes by flushing RO permeate through each pressure vessel. The system can then be returned to service.

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Disclaimer: 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