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Monitors in the funnel that are also linked to GPS will be able to record emissions and the time and position of the vessel when readings are recorded.


to a GPS signal which will log the vessel’s position at a given time and monitor the SO2 content in the smoke stack. Tis method does not need any human monitoring intervention. Alternatively compliance can be proved through the type approval of the systems themselves. Danish operator, Maersk, one of the


world’s largest shipping companies, is in the process of evaluating its vessels with a view to either retrofitting scrubber systems to existing ships or adding them to new vessel designs, a spokesman confirmed.


A matter of choice Hamworthy said that it can custom design solutions for scrubbers that will fit particular ships. Te company says it works to assist customers in their environmental choices, rather than to dictate to them. In an alternative marine fuel initiative,


Hamworthy Gas Systems has taken a key role in offering the technology so that two ferries under construction at the Bharati Shipyard in India for Sea-Cargo can run on environmentally-friendly liquefied natural gas (LNG). With Rolls-Royce Marine supplying the


main engines, Hamworthy will deliver two LNG fuel tank skids, piping and interface nozzles, the fuel tank (a double shell insulated pressure vessel), safety systems, the prismatic gas tight tank room and two bunkering stations. It is Hamworthy’s group-wide


specialisation in fluids handling technology that gives its aggressive, environmentally driven acquisition programme coherency. Te company’s complimentary leading


edge role in water systems was no better demonstrated recently than through an order for the largest ever Membrane Bioreactor (MBR) wastewater treatment plant for installation onboard a cruise ship. Te twin process tank system, delivered to Meyer Werſt’s Papenburg yard, Germany, is being installed onboard a 5600 passenger capacity vessel. Featuring 64 membranes, the system has the capability to treat all of the ship’s black and grey water.


The Naval Architect September 2010 Tis is the technology that Hamworthy


has pioneered in the cruise, naval and offshore sectors, surpassing even the most stringent regulatory requirements. Based on biological degradation and


membrane separation, the MBR process achieves the highest quality discharge without requiring any addition or generation of chemicals hazardous to the marine environment. Hamworthy Water Systems Engineering


Manager, Trevor Dodd, said: “International standards on wastewater discharge have steadily tightened and will continue to do


so. Hamworthy’s MBR system continues to develop in anticipation of these regulations and remains at the forefront of shipboard wastewater management.” Again, it was Hamworthy that recently


became the first non-domestic sewage plant supplier to achieve CCS Type Approval for its Super Trident-C enhanced sewage plant for merchant marine customers, which uses an extended aeration process. Te approval came at a pivotal point in marine environmental legislation as new IMO MARPOL Annex IV guidelines came into force requiring all vessels to be fitted


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In-depth


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