RoClean P911

Summary

Product Identification

• Product Name: RoClean P911
• Product Type: Cleaner
• Form: Powder

Description

RoClean P911 is a multicomponent, high pH buffered cleaner designed to remove high levels of organic foulants, including humic and fulvic acids, from reverse osmosis (RO) membranes. It is a low foaming cleaner effective against silt and organic foulants such as colloidal silica, clay, organic color, and bioslime. The product is temperature compensated to maintain optimal pH across a range of temperatures.

Performance Benefits

• Specialized blend of proprietary buffers and other components to dissolve organic foulants and disperse colloidal particles.
• Superior to generic solutions.
• Highly buffered to resist pH changes during cleaning.
• Compatible with polyamide membranes from all major manufacturers.
• Suitable for use with other Avista cleaners.
• Certified to NSF/ANSI 60.

Instructions for Use

Cleaning Procedure Summary

1. Fill cleaning tank with RO permeate or deionized water.
2. Heat the solution to the maximum acceptable temperature (per membrane manufacturer's guidelines).
3. Add sufficient RoClean P911 to create a 4.5% wt/wt solution. Recirculate for mixing.
4. Recirculate the cleaning solution through each RO system stage (one at a time) for a minimum of 60 minutes at the membrane manufacturer's recommended flow rate, or use guidelines provided in the full technical bulletin.
5. For heavily fouled membranes, discard up to 15% of the solution volume if it becomes discolored or turbid. A soaking period (up to 8 hours) may be beneficial.
6. Monitor the pH. If it remains in the desired range and the solution is not turbid, it can be used for subsequent stages. If pH drops, prepare a new batch and repeat the process.
7. After cleaning, rinse membranes by flushing with RO permeate.

Product Information

Packaging

• 45 lb Pail (Americas/Asia)
• 100 lb Carboy (Americas/Asia)
• 350 lb Drum (Americas/Asia)
• 20 kg Drum (EMEA)
• Drumless or bulk tanker delivery available on request.

Storage

Information not provided in extract.

Specifications

• Appearance: White powder
• pH (4.5% solution): 11.5-12.8

Recommended Flow Rates (per vessel)

• 4-inch Element Diameter: 10 gpm (2.4 m³/hr)
• 8-inch Element Diameter: 40 gpm (9.0 m³/hr)

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