AWC C-238 – Gypsum Dissolver
Gypsum Dissolver (Liquid Caustic)
RO cleaner specifically designed for disintegration of gypsum scale. 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.
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Advantages
- Dissolves and disintegrates gypsum (calcium sulphate scale) into a slurry that can easily be flushed from the membrane surface.Â
- Effectively penetrates and removes organic and biological foulants
- Expands the scale layer for enhanced dissolution using AWC C-239 of the most stubborn sulphate scales
- Compatible with all Thin Film Composite RO membranes from all major membrane suppliers
Packaging
- 20L pails
- 200L non-returnable plastic drums
- 1000L IBC
Safety and Handling
Store in a cool, dry and well-ventilated area. Keep containers closed. Wash contaminated clothes before re-use. Wash thoroughly after handling. For more information, see the Safety Data Sheet provided with this product.
Chemical Feeding and Control
- The cleaning solution should be prepared using RO permeate or softened water that is free of residual chlorine or other oxidizing agents. Add AWC C-238 in a 2% by weight solution.Â
- The cleaning solution is then circulated throughout the system without exceeding pressures, temperatures and flow rates recommended by the membrane manufacturer.Â
- Cleaning efficacy can be further improved by heating the cleaning solution and alternately circulating the solution for 60 minutes and then soaking the membranes for 30- 60 minutes for a total cleaning time of 4-6 hours.Â
- AWC C-238 should be added as necessary to the cleaning solution to maintain the pH range throughout the entire cleaning process. Depending on severity of fouling, your Membrane Works representative will recommend optimal cleaning times.
