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IMO grants Final Approval to Siemens' ballast water management system

It is estimated that more than 50,000 vessels will require retrofitting to meet new provisions

The Maritime Environmental Protection Committee of the United Nations' International Maritime Organization (IMO) has granted Siemens Final Approval for its Sicure ballast water management system.

The Final Approval is based on a directive issued by the IMO, a specialized agency of the United Nations, which requires all deep-sea vessels to operate IMO-approved ballast water management systems. The objective is to avoid the spread of alien aquatic organisms and pathogens carried in untreated ballast water. The IMO directive will come into force in the near future and will entail retrofitting approximately 50,000 sea-going vessels worldwide.

For its Sicure system, the Siemens Industry Automation Division received Basic Approval back in 2010, as the first leg of a two-tier certification process by the IMO. By granting Final Approval, the IMO confirms the new Siemens ballast water management system's environmental compatibility and compliance with the safety standards. The Sicure system is a further development of the Chloropac system, which has seen 35 years of successful ship-board use for treating seawater cooling circuits. The electrolytic system produces hypochlorite from the salt contained in seawater.

The Sicure system consists of a filtration stage followed by electrochlorination and a dosing unit which precisely meters the addition of hypochlorite. Electrochlorination occurs in a sidestream of the ballast water main. Only about one percent of the ballast water to be treated is carried through the system's electrolysis cells. This makes for small system components which are easily integrated into existing vessels. Another key advantage of the Sicure system lies in the fact that it is not only used for treating ballast water but also for treating cooling water circuits on board. Since ballasting occurs only during very short periods in a ship's lifetime, conventional ballast water systems remain idle 95 percent of the time. By contrast, the Sicure system can be used all the time, eliminating the need for an additional system for treating cooling water. The Siemens system is particularly suited for vessels above a gross tonnage of 35,000.

Water treatment equipment is an important part of Siemens' marine technology product offering. Siemens also specializes in the design, manufacture and commissioning of electrical ship propulsion systems for all types of merchant vessels, naval vessels and submarines worldwide.

Further information about solutions for water treatment is available at:
The Siemens Industry Sector (Erlangen, Germany) is the world's leading supplier of innovative and environmentally friendly products and solutions for industrial customers. With end-to-end automation technology and industrial software, solid vertical-market expertise, and technology-based services, the Sector enhances its customers' productivity, efficiency, and flexibility. With a global workforce of more than 100,000 employees, the Industry Sector comprises the Divisions Industry Automation, Drive Technologies and Customer Services as well as the Business Unit Metals Technologies. For more information, visit

The Siemens Industry Automation Division (Nuremberg, Germany) supports the entire value chain of its industrial customers – from product design to production and services – with an unmatched combination of automation technology, industrial control technology, and industrial software. With its software solutions, the Division can shorten the time-to-market of new products by up to 50 percent. Industry Automation comprises five Business Units: Industrial Automation Systems, Control Components and Systems Engineering, Sensors and Communications, Siemens PLM Software, and Water Technologies. For more information, visit

SiCURE and Chloropac are trademarks of Siemens and/or its affiliates in some countries.

Reference Number: IIA2012032819e

Mr. Peter Jefimiec
Industry Automation Division
Siemens AG
Gleiwitzerstr. 555
90475 Nuremberg
Tel: +49 (911) 895-7975
Contact USA
Ms. Allison Britt
Water Technologies Business Unit
Siemens Industry, Inc.
Hoffman Estates
IL 60192
Tel: +1 (847) 713-8477

Peter Jefimiec | Siemens Industry
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