Hamworthy takes lead from the environment

A recent string of acquisitions and new product launches confirm that Hamworthy is putting environmental concerns at the top of its development agenda.

The very nature of Hamworthy's marine and offshore engineering business has meant that it has always placed a high priority on developing environmentally sound technology. However, its growing role as a systems integrator able to offer ship-wide engineering solutions is adding a new dimension to its ability to meet and exceed new and coming environmental regulations.

The increasing significance of environmental imperatives to the group has been felt through a string of recent acquisitions. Last year, for example, Hamworthy acquired Krystallon, the company responsible for ensuring that exhaust gas scrubbing was included as an alternative to distillates to meet sulphur emissions limits set by the EU and the IMO.

The effectiveness of marrying an innovative technology with an established engineering brand supported by worldwide service was quickly verified. Krystallon secured high profile shipboard trials with leading shipping companies, in the process proving that the technology could achieve 98% sulphur suppression while burning MDO. Other suppliers have subsequently secured test installations.

However, it was only after the establishment of Hamworthy Krystallon that the first commercial order for exhaust gas scrubbing was secured.

Last month, Italian owner Ignazio Messina & C. selected Hamworthy Krystallon seawater scrubbers for four new 45,000 dwt ro-ro ships under construction at Daewoo Shipbuilding and Marine Engineering, South Korea.

Sigurd Jenssen, Managing Director, Hamworthy Krystallon Ltd, said: "This is an important milestone for Hamworthy Krystallon, but also for exhaust gas scrubbing in the marine industry in general. Messina, DSME and Hamworthy are leading names in the shipping industry, demonstrating that seawater scrubbing will become a mainstream marine technology."

Crosshead: A matter of choice

Hamworthy works to assist customers in their environmental choices, not to dictate 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.

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.
Indeed, it is Hamworthy's group-wide specialization in fluids handling technology that gives its aggressive, environmentally driven acquisition programme coherency.

The 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 on board a cruise ship. The twin process tank system, delivered to Meyer Werft's Papenburg yard, Germany, is being installed on board a 5,600 passenger capacity vessel. Featuring 64 membranes, the system has the capability to treat all of the ship's black and grey water.
This 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. The 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 with compliant sewage treatment plant. Accordingly, Hamworthy has followed up with a significant number of orders.

Crosshead: New horizons

Now slotting into the company's water treatment capability is ballast water management - the issue identified by IMO as one of today's four main concerns in the marine environment.

Last year, Hamworthy acquired Greenship, the innovative developer of the SEDINOX® ballast water management, then at an advanced prototype stage. Bringing the operation under its Water Systems division, itself already augmented in recent years through the acquisition of Serck Como, Hamworthy has moved quickly from prototype to commercial offering, and towards the approvals that will bring the SEDINOX® system to a wider market.

The Hamworthy SEDINOX® management solution uses a combination of cyclonic separation in its first stage to manage the removal of sediment down to 20 microns, and electrolysis as the means of killing organisms in the second stage.
Competing approaches that use first stage filtering tend to achieve a 50 micron sediment level, which has consequences for power use in second stage treatment. In the second stage of the Hamworthy process, lower power is required and, critically, no chemicals are injected, but the system still achieves a 99.9% disinfection rate of the zooplankton, phytoplankton and bacteria contained in ballast water.
In picking out SEDINOX® from a range of possible acquisitions, Hamworthy homed in on the fact that, not only did the technology address the environmental issue at hand; its wider environmental impact could be shown to be less than competing systems through its eco-friendly solution to sediment build up.

Hamworthy's SEDINOX® system separates organic and inorganic matter, preventing particles from passing through the system and being carried to the ballast tanks, where they can settle and a new breeding ground for micro-organisms could be created. Unlike other systems, the Hamworthy approach thus eliminates the particulate matter responsible for settlement.

It is sometimes overlooked that the full intention of the Ballast Water Convention is: 'Control and Management of Ships Ballast Water & Sediments'. Permanent ballast sediment formed in ballast tanks also concedes displacement available for cargo carriage, as well as meaning a higher fuel bill and higher emissions. It may also bring additional disposal costs, if such sediment were deemed hazardous waste.

Further demonstration that environmental concerns touch all aspects of today's marine market is through the encouragement Hamworthy Svanehoj, Hamworthy's specialized cargo and fuel pump specialist, is giving shipowners to choose electrically-driven pumps over their hydraulically-driven counterparts. Hamworthy's electrically-driven deepwell pumps offer operators a reliable, safe and energy-saving alternative for handling crude product on FPSO/FSO vessels.

The company points out that in the operational phase electric equipment is more environmentally friendly because C02 emissions are cut due to higher efficiency. hence lower power utilisation, less fuel usage and there is no risk for spillage of hydraulic oil. Significant interest in the merits of electric driven deepwell pump systems has been expressed by tanker owners and builders for crude and clean oil products handling in the Handy-sized to Panamax tonnage range.

Increasingly, though, and especially during shipping's current malaise, Hamworthy is paying keen attention to bringing its environmental expertise to the offshore sector.

The environmental case for flare reduction, for example, has always been compelling. Today, at least 150 billion cubic metres of natural gas is reckoned to be flared or vented annually. Not only does this equate to around 25% of the natural gas consumed by Europe alone, it adds about 400 million tonnes of CO2 to worldwide emissions per year.

Now, for the first time, technology is commercially available that converts stranded flare gas into a range of desirable products for energy consumers.

A small band of engineering firms in the gas business segment possess proven technology that can contribute to a significant reduction in flaring worldwide.

However, through internal development and acquisition, only Hamworthy is in the position to offer the market both reduced flaring and a full range of viable options to convert recovered gas into marketable LNG, LPG, or electric power.

After its 2009 acquisition of Technology and Products business related to flare gas ignition and recovery previously offered by Aibel, Hamworthy can offer a technology that uses a combination of blower, ejector and compression technology, ignition and an inert gas system to prevent air ingress in the flare line.

The product yielded can be used either as a fuel source for plant onboard an offshore installation, re-injected into the well for pressure support, or directly mixed with the export gas in the pipeline.

Already, Hamworthy has 28 references for flare gas recovery systems, either on board platforms or FPSOs.

Wärtsilä Hamworthy

Fleets Corner, Poole, Dorset, BH17 0JT, UK

Phone: +44 1202 662600

E-mail: info@hamworthy.com

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