Bord na Mona’s Monafil process uses a naturally occurring highly stable media, which can be installed to 3 m in height and has typical life-spans of 5-8 years. Monafil is particularly suited to the treatment of air from solid waste composting and MBT processes. The Monashell and Monafil technologies are designed to deliver significant, environmentally responsible benefits for wastewater pumping stations, wastewater treatment works, sludge handling and treatment processors, municipal solid waste and composting centres, as well as various industrial facilities. Monashell is also effective for treating a broad range of compounds and high and variable levels of H2S and Organic Sulfides at the lowest whole life cost. Monashell uses a smaller footprint than conventional biofilters and its offsite or onsite modular construction allows ease of installation.

Shane Keaney, president Bord na Mona, said: “Odour emitted from wastewater treatment processes is increasingly a concern as populations grow and housing encroaches upon once-remote treatment facilities. Odour is more than unpleasant. It derives from sulfurous compounds that can raise acidity and cause corrosion. Our Monashell Biofiltration System is a sustainable, low maintenance and low operating cost alternative to traditional carbon or chemical scrubbing. The reuse of waste shells as media maintains a neutral pH, allowing for highly effective biological treatment of odorous reduced sulfur compounds in wastewater and industrial airstreams without the use of chemicals or nutrient addition.”