Maintenance of RO membranes

14 Oct.,2022


Reverse Osmosis Membrane Elements

Causes of contamination of the RO membranes

Biological contamination, chemical precipitation and membrane damage are the main causes of the contamination of RO membranes. 

Biological contamination (fouling): concentrated impurities can deposit on the membranes, especially during a standstill. Microbiological growth on the membranes, failure of pre-treatment or failure of chemical dosing can also cause the RO membranes to become dirty. 

Chemical precipitation (scaling): the precipitation of poorly soluble chemicals on the membrane surface by oversaturation. 

Membrane damage: when chemicals react with the membrane and cause damage to it.