In 2008, Daphne Utilities began an effort to increase the capacity and efficiency of its water reclamation facility (WRF) while reducing the plant’s odor, noise, and cost. Volkert reviewed the facility and recommended and designed the improvements.
Volkert performed extensive analysis of the existing unit processes and recommended several upgrades. The capacity limitations of the gravity outfall system were addressed first. Volkert performed detailed design and construction engineering and inspection services for capacity improvements, including installation of a three-pump system that operates during peak flow periods.
The second phase entailed the upgrade of the plant headworks. Volkert coordinated a pilot study for a new screening technology that utilizes a filter fabric for screening to achieve debris removal along with reduction in biochemical oxygen demand and total suspended solids. The findings and a design concept were approved based on available funding, schedule, operation and maintenance needs, and treatment capabilities. Finally, in the third phase, Volkert reviewed the biosolids facility and recommended and designed specific upgrades.
The newly improved 9 million-gallons-per-day facility was completed in stages to permit continued operation during construction. The upgrade was named “Project of the Year” in 2012 by the Mobile Area Council of Engineers.