Feature 5 | ONBOARD ENVIRONMENTAL SYSTEMS DFDS to retrofit Hamworthy MBR
Hamworthy has received the first order for its latest Membrane BioReactor (MBR) technology from well-known ferry operator DFDS.
management system to be installed on board Pearl of Scandinavia, replacing an existing sewage treatment plant that dates back to the vessel’s delivery in 1989. Te first stage of the job was undertaken in January 2011 during the vessel’s docking period, and this comprised the installation of steelwork materials for a new process, permeate and cleaning tanks. Due to the short drydock time,
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Hamworthy manufactured the process tank, pump skids and pipework in kit form at its plant in the UK, to enable it to retrofit through the ship’s existing hatches and doorways. It was then assembled, welded and pressure-tested during drydocking under the supervision of Hamworthy engineers. Te remaining equipment will be delivered by April 2011. Te MBR was the first new generation
Hamworthy Mark IV MBR unit to be delivered. The equipment was sized to utilise the existing structure from the old sewage plant,
thereby minimising
disruption and the amount of additional work needed by the owner. According to project manager, Julian
Nicholas: “With a bit of ingenuity we have been able to integrate the permeate and cleaning tanks with the process tank, making for a more compact installation. This order demonstrates the way that more and more operators are turning to
contract signed by DFDS with UK-based Hamworthy calls for a bespoke advanced wastewater
The new MBR unit that Hamworthy delivered for installation on Pearl of Scandinavia.
environmentally-friendly technology, ahead of regulations that will have an impact across the passenger ship market.” Based on biological degradation and
membrane separation, the Hamworthy MBR process is designed to achieve the highest quality discharge without requiring the addition or generation of chemicals that might be hazardous to the maritime or shipboard environment. Since introducing its MBR technology
in 2000, Hamworthy has supplied over 100 units to a range of new and existing cruise ships, ferries, offshore rigs, naval
ships, and yachts. The company has recently completed upgrade projects for the Pacific Sun and Pacific Jewel, so that the whole of the Carnival Australia cruise fleet is now fitted with Hamworthy’s MBR systems, for example. Hamworthy has been expanding its
environmental portfolio and it is now developing ballast water management systems to help protect the world’s oceans and exhaust gas cleaning technology for the removal of sulphur from air emissions. This technology is also well suited for retrofit work. SCRT
Color Line opts for chemical free water systems
Scandinavian firm Enwa Water Treatment has picked up a significant refit contract. T 42
he Norwegian ferry operator, Color Line has elected to
change all the closed
loop water systems used for both HVAC systems and engines across
its entire fleet and use EnwaMatic water treatment technology instead. Following a lengthy period of testing onboard Color Fantasy, other vessels operated by the company will be
retrofitted with the system, which is designed to prevent internal corrosion in an environmentally friendly way, without using chemicals. The system changes key water
Shiprepair and Conversion Technology 1st Quarter 2011
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