HELSINKI, Finland (June 25, 2012) – Wärtsilä Hamworthy has won a contract from Fincantieri Cantieri Navali Italiani S.p.A. to supply two membrane bio reactors (MBRs) to the 141,000 gt new building under construction for Carnival group member P&O Cruises.

Hamworthy has delivered more than 25 MBR advanced wastewater systems to the world’s largest cruise ship operator, Carnival. The company’s MBR system produces the highest quality discharge without requiring any addition or generation of chemicals that are hazardous to the environment or vessel operation. For this contract, Wärtsilä Hamworthy will also be responsible for UV polishing.

The 3,611-passenger-capacity vessel is set to enter service in March 2015. It will be the largest to be constructed for the British market and the order includes an option for a second vessel

P&O Cruises is the U.K.’s leading cruise operator and the new vessel will be targeted specifically at British clientele in a key growth market for cruises, according to Micky Arison, Carnival group chairman and chief executive.

Incorporating a twin-line funnel profile, the new building will reflect the highest technological standards as well as a stylish interior décor.

Kevin Robertson, Sales Director, Wärtsilä Water Systems, said: “Carnival group is once again showing confidence in the ability of Hamworthy’s advanced wastewater treatment technology to meet increasing environmental legislative requirements.”

Wärtsilä Hamworthy Ltd. provides environmental and liquid cargo handling solutions for the marine and oil & gas markets. Wärtsilä provides life-cycle power solutions for the marine and energy markets. By emphasising technological innovation and total efficiency, Wärtsilä maximises the environmental and economic performance of the vessels and power plants of its customers. In 2011, Wärtsilä’s net sales totalled EUR 4.2 billion with approximately 18,000 employees. The company has operations in nearly 170 locations in 70 countries around the world. Wärtsilä is listed on the NASDAQ OMX Helsinki, Finland.www.wartsila.com.  Wärtsilä’s acquisition of Hamworthy plc became effective on January 31, 2012.