- Refinery Cooling Water & Boiler Water Feed System
In working with a confidential client, Burns & McDonnell consulted with the refinery to design an integrated membrane facility for treatment of multiple water sources on the refinery’s site. Two significant goals of the project are to conserve water and minimize environmental impact. Reusing waste streams and maximizing water recovery combine to achieve these goals and are significant project drivers. The client understands the importance of environmental stewardship. The refinery’s undertaking of an on-site water treatment facility demonstrates that commitment. Our team worked closely with the client to design an effective, long-term solution.
The client has studied use of the city’s treated wastewater as a water source since 2001. Many engineering studies verified that the water can be purified to the required standards to be used as makeup water for the cooling towers. As a temporary attempt to mitigate issues associated with the degrading water quality, the refinery has operated leased trailer microfiltration (MF) and reverse osmosis (RO) membrane treatment units for several years. Realizing the cost savings and regulatory need for a long-term solution, the refinery engaged our team of engineers to accomplish three objectives:
- Install a permanent water treatment plant facility to replace the current leased water treatment trailers
- Resolve the water quality issues
- Address current concerns with further dewatering of the water aquifer
Several water sources will be blended and routed to the new treatment facility, including existing refinery wells, chloride remediation wells (installed to mitigate the potential impact of improperly injected waste), refinery wastewater, potable water and gray water sources. This system will provide finished water at two water qualities: a lesser quality for cooling tower makeup water and higher quality permeate for boiler feed water. By building an on-site integrated membrane facility for water treatment, the client estimates saving 1.5 million gallons of water per day from being pumped from the Ogallala Aquifer. Reducing the draw from the aquifer was an important objective, due to the dewatering of the aquifer during the past decade.
- FEP-2 (front-end planning)
- Detailed design
- Cooling water makeup system
- Boiler water feed system