Modern MBR Plant Serves Premier Country Club

April 2, 2018

About the author: Bob Griffin of Griffin Integrated Communications can be reached at 212.481.3456 x16 or by e-mail at [email protected]. For more information, visit

The 1,000-acre Laurel Cove Golf & Country Club is being developed into the foremost golf and residential community in middle Tennessee. Featuring a stunning golf course, the 800-lot-plus development will offer all of the modern amenities of a premier country club while intertwining the deep architectural traditions of the Southern lifestyle.

Bord na Móna was awarded a $1-million contract in October 2007 by Adenus Solutions for the design and supply of a PuraM membrane bioreactor (MBR) wastewater treatment plant for the Laurel Cove Golf & Residential Community Development. The installation was completed in April 2008.

The system installed at Laurel Cove includes 18 flat-plate PuraM membrane cassettes.

The plant was designed to treat a Phase 1 flow of 250,000 gal per day (gpd) and to achieve a final effluent quality of 10mg/l BOD : 20mg/l TSS : 10mg/l TN. The design allows the final effluent to be used as a supply for irrigation water on the development’s Greg Norman-designed golf course.

The PuraM wastewater plant is comprised of two treatment streams each designed to handle up to 125,000 gpd. Each stream has an anoxic/equalization tank and PuraM MBR tank. The system includes 18 flat-plate PuraM membrane cassettes. “Consideration was made in the design to allow for complete ease of upgrading the system in future phases for flows up to 1,000,000 gpd,” Shane Keaney, president of Bord na Móna Environmental Products U.S. Inc., explained. “The anoxic/equalization tanks were designed to permit future conversion into PuraM MBR tanks.”

According to Glenn Marcum of Adenus Technologies, “As the provider of complete turnkey solutions, Adenus needs treatment solutions that provide value. Bord na Móna delivered that value with their new PuraM Membrane Bioreactor, pre-engineered system solution.”

While the Laurel Cove development marks the first U.S. installation of a PuraM treatment system, similar PuraM systems are already in place in Europe, where Bord na Móna’s parent company is headquartered. PuraM is a pre-engineered wastewater solution that achieves high-quality effluent within a greatly reduced overall footprint. The PuraM MBR is engineered specifically for the decentralized municipal, community and commercial wastewater treatment market with an emphasis on reliability, reduced operational input, ease of maintenance and less complexity than comparable systems.

PuraM is based on flat-plate ultrafiltration membrane technology assembled into stainless steel membrane cassettes. The cassette consists of a unique integral dedicated air diffuser assembly that eliminates the need for back-pulsing or frequent chemical cleaning. The system does not require permeate pumps or any site-installed chemical dosing system while achieving a typical time between recovery cleans of approximately 12 months, significantly better than comparable systems.

“We are very pleased to have been selected by Adenus Technologies for this high-profile mixed-use development,” Keaney said. “The wastewater treatment system we have installed at Laurel Cove incorporates the Bord na Móna enhanced air scour flat plate cassette design that reduces complexity, and operational input, a significant benefit for decentralized treatment works. The PuraM system installed at Laurel Cove treats wastewater to reuse standards and can be used for irrigation of the golf course. The design allows for phasing that can expand the capacity of the works to meet the future needs of this dynamic new community.”

About the Author

Bob Griffin

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