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Membrane Clearner Selection Guide

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Membrane Cleaner selection guide

American Water Chemicals (AWC) offers a comprehensive range of high-performance membrane cleaners, specifically formulated to tackle even the most stubborn scaling and fouling issues. Our specialised cleaners effectively remove otherwise untreatable scales, including gypsum, calcite, polymeric silica, severe iron oxide, biological fouling, and clay fouling.

AWC membrane cleaners are compatible with all membrane types and are approved by leading membrane manufacturers. Many of our formulations also meet FDA and food-contact safety standards, ensuring compliance for sensitive applications.

Cleaning Chemical Selection Chart

Physical Forms
 Powder
 Powder
 Liqud
 Liqud
 Liqud
 Liqud
 Liqud
 Liqud
pH
 Low pH
 High pH
 Low pH
 Low pH
 Low pH
 Low pH
 High pH
 High pH
Scale Type
 C-101
 C-227
 C-219
 C-238
 C-239
 C-101
 C-218
 C-217
Sulphate Scales
 .
 .
 
 
 .
 .
 .
 .
Carbonate and Phosphate Scales
 





Silicate Scales





Iron Oxide
 






Oils and Greases


 
 
 
Biological and Organic Fouling





Heavy Organic (NOM) Fouling





Colloidal Silica and Suspended Solids


 

Excellent
 Very Good
 Good
 Moderate
Product
 Description
 Product Link
AWC
C-218		 General Purpose Caustic Cleaner (Liquid caustic).
Low foaming caustic cleaner. Contains a range of alkalis and chelation chemicals to break up difficult inorganic scales such as calcium, barium and strontium sulphate. The product also contains high power dispersants that penetrate biofilms and break down clays and silica.
AWC
C-227		 Biological and Clay Cleaner (Powder caustic).
Our strongest high pH cleaner available, containing micro-oxidants. Advanced chemicals penetrate and break down the integral structures in biological and organic fouling layers, and chelants and dispersants break down difficult inorganic scales such as calcium sulphate, iron, and colloidal clay fouling.
AWC
C-238		 Gypsum Dissolver (Liquid Caustic).
This cleaner breaks down the structure of gypsum and sulphate scales into a slurry for flushing out of the membrane system. Works in conjunction with C-239 for maximum cleaning effectiveness.
AWC
C-239		 Gypsum Dissolver (Liquid Acid)
This cleaner breaks down the structure of gypsum and sulphate scales into a slurry for flushing out of the membrane system. Works in conjunction with C-238 for maximum cleaning effectiveness. The C-238 and C-239 cleaners can be effective on their own, but work best together.
AWC
C-219		 Silica cleaner (Liquid).
A safe and non-corrosive alternative to hydrofluoric acid, used to remove silica and aluminosilicate scales. The product is formulated at pH 5 to not be rated as DG for transport.
AWC
C-217		 Iron and Aluminium cleaner (Liquid).
This advanced iron cleaner breaks down and dissolves iron and aluminium oxides from the membrane surface. Exceptional for highly fouled membranes where citric or hydrochloric acid is not effective.
MW
C-101		 Inorganic cleaner.
Used to remove low level inorganic fouling including iron, aluminium, calcium and magnesium.