Using Zeta Potential to Improve the Efficiency of Reverse Osmosis Filters

Abstract

The effect of zeta potential on the Reverse Osmosis (RO) filters system for making the surrounding dilution (water) inside the membranes electrically stable, which means (High zeta potential) was studied. This procedure prevents or decrease the fine particles (sediments) from blocking the membrane holes, as a result of this, the membrane efficiency will increase. In this experiment the tap water subjected to high voltage source (25 kV) entering before the filter container. Several measurement applied on the samples every day, such as (pH, conductivity, salinity, total dissolved solid, pressure drop and flow rate) after and before zeta effect. The result showed a higher range in all parameters when zeta effect applied, also the produced water increase about 20% .The whole system was in a good condition and no need to regular maintenance.