Significant Benefits

Sustaining high recovery and minimising the deleterious impact of membrane fouling are the principal operational challenges for RO systems.

Fouling increases energy consumption due to decreased permeability; reduces a membrane’s ability to reject salt; and shortens membrane life due to the damage caused by cleaning chemicals, which are themselves expensive and require disposal.

The risk of fouling increases capital costs by requiring plants to be oversized to provide spare capacity to deal with regular cleaning.

The Optimum Recovery Rate (or critical flux) is the highest flux when no or negligible fouling occurs, a concept first proposed in 1995. Above critical flux, fouling rapidly sets in. The application of critical flux to inorganic fouling is well documented. CMS and its research partners have identified similar trends in the onset of organic fouling.

CMS’s technology allows the Optimum Recovery Rate to be determined in real-time.

The ability to identify critical flux allows RO facilities to operate at the recovery rate that delivers the optimum balance between minimisation of fouling and maximisation of permeate volume per unit of energy consumed.

CMS’s Service allows a plant to be operated at maximum recovery rate with any increase in fouling immediately identified.

CMS provides an array of powerful, real-time analytical data feeds, enabling plants to be operated at maximum efficiency. CMS engineers assist with data interpretation.