Cleaning and Sanitization

The surface of a reverse osmosis (RO) membrane is subject to fouling by foreign materials that may be present in the feed water, such as hydrates of metal oxides, calcium precipitates, organics, and biological matter. The term "fouling" includes the build-up of all kinds of layers on the membrane surface, including scaling.

Cleaning Procedures (278KB PDF)
 

Cleaning Procedure for Specific Situations

General Cleaning Procedure Considerations for Specific Situations (23KB PDF)

Sulfate Scale Cleaning Procedure (35KB PDF)

Carbonate Scale Cleaning Procedure (39KB PDF)

Iron Fouling Cleaning Procedure (39KB PDF)

Organic Fouling Cleaning Procedure (39KB PDF)

Biofouling Cleaning Procedure (40KB PDF)

Emergency Cleaning Procedure (54KB PDF)
 

Sanitizing RO / NF Membrane Systems

Sanitizing RO and NF Membrane Systems - Introduction (26KB PDF)

Hydrogen Peroxide and Peracetic Acid (28KB PDF)

Chlorinated and Other Biocidal Products (24KB PDF)

Heat Sanitization (37KB PDF)
 

Additional Cleaning Information

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