RO Membrane Scale Inhibitor - ROCscale 91 is an RO membrane scale inhibitor and has been developed specifically for use with high silica waters and is a synergistic blend of threshold antiscalants and dispersants.

Precipitation of scale on RO membranes will reduce system performance and lead to premature membrane replacement. Build-up of scale and deposits on RO membrane leads to poor permeate quality, low permeate production, unscheduled downtime, increased water consumption and increased energy costs.

ROCscale 91 allows plant operation with concentrate silica levels up to 230 mg/l at pH 7.5 and 30C. ROCscale 91 is not deactivated by the presence of iron or manganese and is an effective scale inhibitor against all insoluble calcium salts.

Product benefits 

• Effective silica and calcium salt antifoulant in all water types.
• Suitable for use with polyamide thin film composite and cellulose acetate membranes.
• Liquid product, safe and easy to handle.
• Enables recovery rates to be maximised.
• Compatible with all membrane types.
• Effective over a wide pH range.

Technical support and advice

Reverse Osmosis Chemicals International work closely with a diverse range of global organisations, intelligently combining advanced treatment technologies with practical solutions to resolve complex issues. If you have a project you would like to discuss, or you require technical support and assistance; or if you simply have a question about our reverse osmosis membrane scale inhibitors please contact one of our specialist advisors using our Technical Support page or call us on +44 (0) 330 223 31 31.