Evoqua United States - Canada - EN

Refinery Saves 2M Per Year With Boiler Feedwater Outsourcing Agreement

Mobile reverse osmosis system provides reliable purified boiler feedwater to refinery


A West Coast refinery turned to Evoqua for help in providing a more consistent and reliable quality of purified boiler feedwater. The refinery, using up to 1,500 gpm of demineralized boiler makeup water, was experiencing a variety of problems including aging demineralizers, pending environmental legislation, excessive operation costs, wide variations of raw water quality, and limited capital to address these issues.


After a thorough on-site needs analysis by the local sales engineer, Evoqua Water Technologies was selected to design, install, and operate a 1,500-gpm mobile-based reverse osmosis (RO) system.

Within a three-month time period, a high-purity water system was installed and put into operation feeding the refinery's existing demineralizers. The system consists of trailer-mounted carbon filtration, sodium softening, and reverse osmosis. To conserve plant water and minimize waste, the RO reject water is used for cooling tower makeup.

Cost Savings Per Month

$,000 Operating Costs
$,000 Water, Energy & Chemicals


The installation of this system has provided:

  • $100,000 per month reduction in the refinery's operating costs
  • $50,000 per month savings in water, energy and treatment chemicals from boiler blowdown reduction

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