ROSA Membrane Design

Desal Supplies

Unit 9, Canal Street Works

Rochdale, Lancs, OL11 1AB

Tel: +44 (0)1706 869777 / Email:

When designing an RO plant there are many different parameters that must be taken into consideration.  System performance is typically characterised by permeate flow and permeate quality where the main goal is to maximise quality and recovery whilst minimising pressure and membrane costs.  

The biggest influence when considering membrane design is the fouling tendency of the feed water, which is caused when dissolved solids and colloidal matter are present in the feed water and are concentrated at the membrane surface.


Accurate design is crucial to to getting the most from your water treatment system and Desal Supplies are able to carry out membrane design projections using the ROSA (Reverse Osmosis System Analysis) design software.  From the information you provide we can carry out projections and make recommendations as to which membranes would be most suited to your particular application.


If you require design projections please to enter you details and our sales team will contact you to discuss your particular requirements.