The Process and Water Quality Specialists

Recycled Water
  • west basin ozone
West Basin MWD Ozone Pretreatment

The West Basin Municipal Water District owns a 30 mgd water recycling facility that treats secondary effluent from the Hyperion Treatment Plant. Organic fouling has increased flux loss and chemical cleaning frequencies for that facility’s microfiltration (MF) membranes. Trussell Tech pilot tested MF pretreatment with ozone to evaluate the effectiveness of ozonation at reducing organic fouling and increasing membrane flux through a tailored collaboration with the WateReuse Foundation (WRF10-11) . Water quality and operational data demonstrated the success of this approach and prompted the District to pursue full-scale implementation of MF pretreatment with ozone at the 30-mgd water recycling facility using design criteria developed from the pilot testing.