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Commissioning of SeHAWK® FGD Bioreactor at Southern US Power Plant

Friday, February 21, 2020

SAN DIEGO—Frontier Water Systems has successfully completed the installation of a large, full scale advanced treatment system for a major power producer in the southern region U.S. This power station made the decision to move forward ahead of their permitting cycle, making a capital investment to clean water exiting their flue gas desulfurization (FGD) scrubber system to meet a higher standard than required by their current permit. Furthermore, the customer made the decision to include a high level of redundancy to ensure reliable compliance and the option to treat higher flows in the future. Through the design, installation, and start-up of the SeHAWK® biological reactor, Frontier helped the customer safely remove metals and other contaminants from the FGD wastewater stream prior to discharge into the environment. With the current EPA regulations for FGD wastewater in draft form, the system was designed to meet the more stringent 2015 proposed regulations for selenium (23ppt daily max/12ppt monthly avg). This will enable the plant to maintain continued compliance with EPA regulations for selenium, nitrate, and mercury into the next permitting cycle and beyond.

During plant construction, Frontier worked on-site with the customer to navigate a dynamic plant operating schedule. Despite those challenges, the SeHAWK® system came online in January and reached steady state treatment to less than 10 ppb selenium within a matter of weeks. Moving forward, the Frontier and Evoqua service teams will work to provide regular support to the plant, ensuring consistent compliance at one of the largest power generators in the south.

“Frontier Water Systems was excited to design and ultimately install one of the largest SeHAWK systems to date. The modular design simplified the work for everyone involved and the results to date have exceeded our expectations.” – Tim Pickett, CTO and Co-Founder, Frontier Water Systems.

About Frontier Water Systems

Frontier Water is the pioneer and leading supplier of premium engineered equipment packages for high rate treatment of selenium, nitrate and metals from heavy industry.  Building from a track record of applied performance, our equipment solutions are saving our customers millions of dollars, while providing best in class water to our lakes and rivers. Headquartered in San Diego, California, the company operates across three locations across the U.S.