Severn Trent De Nora's New MARINER OMNIPURE® Series M55 System Receives Bureau Veritas Process Type Approval Certification for MEPC.159(55) Effluent Standards

FORT WASHINGTON, Pa. - December 8, 2009 - The new MARINER OMNIPURE® Series M55 marine sanitation system introduced by Severn Trent De Nora in October 2009 has received Bureau Veritas Process Type Approval for IMO Resolution MEPC.159(55). The patent-pending MARINER OMNIPURE Series M55 system has been specifically designed, manufactured and tested to comply with MEPC.159(55) effluent standards and performance tests for sewage treatment plants across a variety of marine installations. The MEPC.159(55) effluent standards, adopted by the International Maritime Organization's Marine Environment Protection Committee, apply to all sewage treatment systems installed on board on or after January 1, 2010.

The Series M55 systems use the same patented and certified treatment process as other OMNIPURE products to produce a sodium hypochlorite disinfection solution from seawater in the presence of sewage to effectively treat all sewage. The MARINER OMNIPURE Series M55 comes in a smaller, more compact size to fit into confined spaces of vessels, workboats and yacht installations.

The MARINER OMNIPURE Series M55 systems can accommodate treatment capacities up to 75 persons for black water and up to 25 persons for black and gray water. The largest units treat a peak flow of 2,160 gallons (8,176 liters) of human wastewater per day.

About Severn Trent De Nora, LLC

Severn Trent De Nora, LLC ( is a joint venture offering a solid foundation to support marine and offshore industrial water disinfection needs by drawing upon the strength and global resources of Severn Trent Services, Fort Washington, Pa. ( and Gruppo De Nora, Milan, Italy ( Severn Trent De Nora offers the benefits of enhanced technical solutions and a greater range of services by combining the seawater disinfection capabilities of both companies. Severn Trent De Nora offers products to serve marine wastewater treatment applications and the seawater disinfection needs for the following applications: power generation, desalination facilities, coastal industry, offshore oil and gas facilities, general marine, cruise vessel industry and navies worldwide.

About Bureau Veritas Group

Since its foundation in 1828, the Bureau Veritas Group has consistently built recognized expertise, helping clients comply with standards and regulations relating to Quality, Health & Safety, Environment and Social Responsibility. The Group's network of regional and local offices manages client relationship and delivers a comprehensive range of services including inspection, testing, auditing, certification, ship classification and related technical assistance, training and outsourcing. When appropriate, Bureau Veritas also provides advisory services. Large and small organizations, whether private or public, can rely on Bureau Veritas to support them in protecting their respective brands, assets and business; playing a key role in both risk management and performance improvement. Bureau Veritas deploys multidisciplinary skills from over 33,000 employees in 850 offices and laboratories worldwide.

Severn Trent Services

Ste. 300, 580 Virginia Drive

Fort Washington, PA 19034-2707


Lori Doppelt

+1 215-997-3727


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