CPH was selected by the City of Palm Coast to provide planning, design, permitting, and construction engineering, inspection and management (CEIM) services for the new WRF No. 2 project. CPH systematically evaluated more than twenty (20) BNR treatment methodologies to determine the most cost-effective and energy efficient BNR system for the City, their operational staff and the limitations of the project site. The BNR technology selected was the flat panel Membrane Bioreactor (MBR) process in conjunction with a 5-Stage Bardenpho treatment system (anaerobic, pre-anoxic, aerobic, post-anoxic and reaeration basins) to achieve the advanced wastewater treatment (AWT) standards required. The MBR/BNR process required a much smaller footprint than that of a conventional BNR system as secondary clarifiers, tertiary filters and all associated infrastructure are not required with MBR systems.

The Palm Coast WRF No. 2 MBR/BNR improvements consist of the following infrastructure: (1) flow metering systems; (2) Influent headworks structure with mechanical drum screens and grit removal; (3) a 5-Stage MBR/BNR treatment system (2 trains) - anaerobic basins, primary anoxic basins, aerobic basins, deoxygenation basins, secondary anoxic basins and reaeration basins; (4) process control equipment; (5) flow equalization to reduce the required membrane surface area and enhance the effectiveness the biological processes (6) fine and coarse bubble aeration systems; (7) internal recycle pumping systems; (8) submersible mixing systems; (9) membrane modules with flat plate membrane panels for the MBR tanks as well as cleaning and backwashing systems; (10) chlorine contact chambers; (11) a transfer pump station; (12) a 2.0 MG ground storage tank; (13) a reject/percolation pond; (14) chemical and supplemental carbon storage/handling facilities; (15) sludge holding/treatment tanks; (16) sludge dewatering facilities; (17) electrical, controls, instrumentation and SCADA improvements; (18) yard piping; (19) stormwater management system improvements; (20) roadway improvements; (21) reclaimed water distribution pump station; and (22) various buildings and miscellaneous infrastructure.