RoClean P303 for Calcium Carbonate and Metal Fouling

Description

Avista RoClean P303 inorganic membrane cleaner for membranes with carbonate and some metal fouling.

RoClea P303 is a low pH, buffered powder cleaner formulated to effectively remove severe calcium carbonate scale as well as moderate metal and metal-organic complex contamination. Designed for systems operating with seawater, brackish water or wastewater, RoClean P303 is the preferred powder solution to meet some of the toughest challenges in reverse osmosis membrane maintenance. NSF approved, this product guarantees not only effective cleaning but also safety in its application for water treatment.

Key benefits RoClean P303

Specialized formula: RoClean P303 combines a specialized blend of proprietary buffers, surfactants and chelators designed to specifically address calcium carbonate scale and metal contamination.
High buffering power: Its ability to resist changes in pH during the cleaning process ensures constant efficacy, regardless of the initial water conditions.
pH optimization: Maintains optimum pH over a wide temperature range, which is crucial for effective dissolution of scale and contaminants.
Universal compatibility: Compatible with polyamide membranes from all manufacturers, RoClean P303 offers a versatile solution for a wide range of reverse osmosis systems.
Combined use with other Avista™ cleaners: Can be used in conjunction with other Avista™ cleaners for more thorough and targeted cleaning according to system needs.

Applications and use of RoClean P303

RoClean P303 is ideal for reverse osmosis systems that face significant challenges with calcium carbonate scale and metal contamination common in the treatment of drinking water, seawater, brackish water and wastewater. Its powder formulation facilitates its storage and handling, offering a powerful and effective solution for membrane maintenance.

User benefits: Do you struggle with calcium carbonate scale and metal contamination in your reverse osmosis system? RoClean™ P303 offers a powerful and safe solution designed to restore the performance of your membranes and prolong their life. With its advanced formulation and approval for use in water treatment, RoClean™ P303 not only effectively cleans your system, but also ensures the safety and quality of the treated water. Experience the difference RoClean™ P303 can make in your operation. Get your reverse osmosis system back up and running at peak performance today with RoClean™ P303!

Performance advantages

Specialization in calcium carbonate incrustations:

RoClean P303 is specifically formulated to remove severe calcium carbonate scale, one of the most common causes of decreased performance in reverse osmosis systems. Its effectiveness in this regard outperforms many other cleaners that may not be as focused on this type of fouling.

Effectiveness against metal contamination:

In addition to carbonate fouling, RoClean P303 is effective against moderate metal and metal-organic complex contamination, offering a comprehensive solution to a variety of contamination challenges.

Low foaming and high buffering formulation:

The low foaming and high buffering capacity of RoClean P303 ensures that the cleaning process is efficient and effective, maintaining optimum pH over a wide range of temperatures and operating conditions.

Universal compatibility with Polyamide membranes:

RoClean P303 is compatible with polyamide membranes from all manufacturers, making it versatile and applicable to a wide range of reverse osmosis systems, without the risk of damaging the membranes.

NSF approval for use in drinking water treatment:

NSF certification ensures that RoClean P303 can be safely used in drinking water treatment applications, which not all membrane cleaners can claim.

Combined use with other Avista™ cleaners:

The ability of RoClean P303 to be used in conjunction with other Avista™ cleaners allows for a more tailored and effective cleaning strategy, leveraging the strengths of different cleaners to address a variety of fouling and contaminants.

What is the proper procedure for using RoClean P303?

Instructions for use:

Membrane cleaning:

The following is an overview of the cleaning procedure with RoClean P303. For more details, please refer to our technical bulletin “Cleaning of Spiral Wound Membrane Elements”.

Fill the cleaning tank to the desired volume with RO permeate or deionized water. Heat the solution to the maximum allowable temperature (according to the membrane manufacturer’s guidelines), as this will greatly enhance the cleaning efficiency. Add RoClean P303 in the amount necessary to prepare a 2% solution by weight if the fouling is moderate to severe, or a 1% solution by weight if the fouling is light. Recirculate the solution into the cleaning tank to ensure uniform mixing.
Process the cleaning solution through each stage of the RO system individually, for at least 60 minutes and at the flow rate recommended by the membrane manufacturer. If the rate is unknown, follow the guidelines below:

Element diameter (Inches)

Diaphragm bag flow (GPM m3/h)

4

10 (2.4)

8

40 (9.0)
If the membranes are significantly fouled and the recirculated cleaning solution becomes dark or cloudy, discard up to 15% of the solution volume. Heavily soiled items may also improve their cleanliness if left to soak for up to 8 hours.
Monitor the pH of the solution during the cleaning process. If the pH remains within the desired range and the solution does not become cloudy, it can be used for cleaning the following stages. In the unlikely event that the pH increases, prepare a new mixture and repeat steps 1 to 4.
At the conclusion of cleaning, rinse the membranes by passing RO permeate through each pressure vessel. The system is then ready to be put back into service.