Moisture reagent RoClean L403 20kg

Application

RoClean™ L403 is a high-performance, high-pH liquid buffer cleaner designed to remove colloidal materials, clay, organics and biological sludge from reverse osmosis (RO) and nanofiltration (NF) membranes when moderately fouled. This cleaner has been successfully used in seawater, brackish surface and ground water systems, as well as in applications where a liquid cleaner is desired. RoClean L403 is commonly used for routine maintenance and is NSF certified for safety and effectiveness.

Cleaning

The RoClean L403 cleaning procedure is simple and effective. Below is a brief description of the procedure:

• Fill the treatment tank to the desired volume with reverse osmosis permeate or deionized water. Heat the solution to the maximum allowable temperature recommended by the membrane manufacturer, as this will greatly increase the cleaning efficiency.
• Add enough RoClean L403 to make a 2% solution by weight for moderate to heavy soiling, or a 1% solution by weight for light soiling. Recirculate the solution through the cleaning tank to ensure proper mixing.
• Pass the cleaning solution through each stage of the reverse osmosis system in turn for at least 60 minutes at the flow rate recommended by the membrane manufacturer.
  If this speed is unknown, use the following guidelines:

- 4-inch reverse osmosis membrane: 2.4 m³/h (10 gpm)

- 8-inch reverse osmosis membrane: 9 m³/h (40 gpm)

• At the beginning of the cleaning process, allow 15% of the initial cleaning solution to flow down the drain. If the tank volume is not enough, add 15% 1% or 2% cleaning solution. If the membranes are heavily fouled and the cleaner has extremely high color or suspended solids, prepare a new batch of chemical. Heavily soiled items can also be helped by a soaking period.
• Monitor the pH of the solution during the cleaning process. If the pH remains in the desired range and the solution is not cloudy, it can be used for purification in subsequent stages. If the pH drops, add more cleaner or make a new batch and repeat the process.
• After cleaning is complete, rinse the membranes by passing the reverse osmosis permeate through each vessel under pressure. After that, the system can be returned to operation.

Chemical and physical properties

Appearance: transparent to amber liquid pH (2% solution): 10.5 - 11.5 Relative density (at 25°C): 1.05 - 1.2

RoClean L403 provides reliable cleaning of reverse osmosis membranes, maintaining their performance and extending their service life. Choose RoClean L403 for highly efficient cleaning of your water treatment system.