During normal operations, membranes can become fouled by scaling salts, inorganic oxides, colloidal material or biological matter.  Fouling involves the entrapment of material in the feed/brine path or deposits on the surface of the membrane.  These deposits can accumulate until there is a loss in productivity, an increase in feed pressure requirements, a loss of salt rejection or all three. 

Siemens offers services and products to help determine the source of your fouling problem and to make recommendations on the selection and purchase of proper chemical treatment.  We work with all the RO chemical manufacturers and will provide the best combination of RO anti-scalents, chemical feed systems and dosing rates to keep your RO system running smoothly.  For municipal and beverage applications, Siemens uses NSF-certified treatment chemicals and processes.  We provide technical assistance with membrane cleaning, either on-site using the customer’s clean-in-place (CIP) skid or by removing and returning the membranes to one of our membrane cleaning facilities.