Multi-Pass Reverse Osmosis MPW’s Multi-Pass RO design provides the ability to vary flow rate with changing influent water quality conditions and production requirements.

MPW's Multi-Pass Reverse Osmosis (RO) System can provide onboard filtration and is a convenient production solution for removing dissolved solids, total organic carbon (TOC) and other colloidal contaminants. MPW's Multi-Pass Reverse Osmosis (RO) System is offered in up to 350 and 600 GPM. Each system can be offered in a single-pass or double-pass mode. The system offers automation, touch-screen controls, flexibility and reliability to meet your specific flow rate and effluent water quality requirements. MPW's field service technicians assist with site evaluation, set-up, commissioning and operation.

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Multi-Pass 350 System Features: Operable in either single- or double-pass mode with nominal flow rates of 350 GPM and 175 GPM respectively

Multi-Pass 600 System Features: Operable in either single- or double-pass mode with nominal flow rates of 600 GPM and 300 GPM respectively


  • Quick conversion to single- or double-pass operating mode
  • Removes up to 99 percent of ionic contaminants and organics over 200 molecular weight
  • PLC controlled chemical feed systems for dechlorination, prefiltration, scale inhibiting and pH control
  • 24-hour remote access and PLC to ensure water quality parameters are met
  • Variable frequency drive (VFD) controlled motors on pumps to reduce electrical consumption and improve efficiency
  • 24/7 Logistics Department for dependable order placement and delivery coordination
  • Onboard touchscreen panel PC and PLC for real-time SCADA and system trending


  • Total dissolved solids reduction
  • Organic compound reduction
  • Colloidal silica reduction
  • Demineralizer system pretreatment
  • Water system outage support
  • Environmental improvement and waste discharge reduction
  • Wastewater Recovery for Process Use or Discharge
Created By
Ryan Cullins


Boone McAdams, Ryan Cullins

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