F. Wayne Hill Water Resources Center Gas to Energy Project

Client: Gwinnett County, GA
Location: Lawrenceville, GA

The design/build team of Crowder Construction Company and Hazen and Sawyer completed the F. Wayne Hill Water Resources Center (FWHWRC) Gas-To-Energy Project for Gwinnett County, GA. Our scope of work included detailed design, permitting services, shop drawing review, periodic on-site construction observation, assistance with startup, and training.

A 2.1MW CHP system was installed with engine and exhaust heat recovery and a digester gas/ natural gas blending system.

Computational Fluid Dynamic (CFD) modeling of primary clarifier performance at the F. Wayne Hill WRC revealed a simple and low-cost modification that increased primary sludge production more than 200% and subsequent digester gas production by more than 50%.

Project Outcomes and Benefits

  • Combined heat and power (CHP) project utilizes digester gas to generate power along with heat to warm the facility’s anaerobic digesters.
  • 2.1-megawatt (MW) engine generator was furnished with a natural gas/biogas blending system, enabling continuous operation of the generator even during periods of low digester gas production, maximizing both energy production and return on investment, while minimizing the plant’s carbon footprint.
  • During the first 45 days of operation, the FWHWRC realized a power savings of over $1,000 per day by operating the engine generator during peak power rate periods.

For more information on this project, or to discuss a similar project in your area, contact Bryan Lisk at blisk@hazenandsawyer.com