Shell Based System Controls Wastewater Odors

A biofiltration odor control system that uses waste sea shells to strip out odors will be featured at WEFTEC. The Mónashell® system from Bord na Móna Environmental Products is billed as a sustainable, low operating cost alternative to traditional carbon adsorption or chemical scrubbing.

The shell-based system is designed to for use at wastewater pumping stations, treatment works, sludge-handling and treatment processors, municipal solid waste and composting centers, as well as various industrial facilities.

The reuse of waste shells as media maintains a neutral pH, allowing for effective biological treatment of odorous sulfur compounds in wastewater and industrial airstreams without the use of chemicals.

The system is effective for treating a broad range of compounds and high levels of H₂S and organic sulfides. It uses a smaller footprint than conventional biofilters and its offsite or onsite modular construction simplifies installation.

The Mónashell® system from Bord na Móna Environmental Products.

Waste airstream is directed into recirculating water within the Mónashell unit, allowing contact between selected micro-organisms and odorous compounds. The harmless bacteria reside on the shell media, which contains high levels of CaCO₃ and neutralizes acid byproducts of sulfide oxidation. The physical, structural and chemical properties of the media allow for smaller filters and higher efficiencies. By-products of the biofiltration process are harmless, clean and odor-free.

Headquartered in Dublin Ireland, Bord na Móna is a multi-national $550-million full line provider of products and services in the environmental, energy, fuels, and horticulture markets. The US branch of the company, Bord na Móna Environmental Products U.S. Inc. (www.bnm-us.com) is headquartered in Greensboro, North Carolina. WW

Bord na Mona is an exhibitor at the WEFTEC.09 event and can be found at Booth No. 2319

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