Environmental care Shaping our business

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Environmental careShaping our business
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Ballast water treatment

• Ballast water treatment is and will become even
  more important for all shipowners/operators
• Large impact on the environment 1 of 4 major
  threats to the worlds oceans
• Meet IMO regulations
• Important to have systems compatible with ship
  operation

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Regulations, Section B
D2
D1/D2
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D1/D2
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D1/D2
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BWT methods tested in MARTOB project

• Overgrowth of organisms (biological/deoxygenation
  principle)
• Chemical treatment
• Thermal treatment
• UV/US
• Filtration
• AOT Advanced Oxidation Technology

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MARTOB EU project

• Onboard trial of Thermal treatment equipment
• Also tested the Deoxygenation/over-growth method

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BW-system on Wallenius modern PCTC Don Quijote

• Ballast water capacity 8075.5 m3
• Ballast pumps 2 x 500 m3/h
• Test system installed while vessel was in full
  operation
• System is integrated with ships ordinary ballast
  system

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Benrad prototype system

• Full scale
• Operated by the crew onboard
• Biological tests have shown high efficiency of
  reducing organic material
• System in line with BW pumps
• Treatment at inlet and discharge
• For surrounding equipment and partner for a
  global outreach entered a partnership with Alfa
  Laval

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Benrad AOT process

• Generation of free radicals by a combination of
• ozone
• catalysts
• UV
• Killing of micro organisms

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Benrad AOT process
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Ballasting
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Deballasting
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Performance

• 100 kill rate on bacteria and all planktontypes
  smaller than 1 mm i size!
• No residuals or remaining toxicity!
• Meet proposed IMO-regulation.

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Efficiency on plankton
Directly before purifier
Directly after purifier
Phytoplankton Dinoflagelat - Ceratium Tripod
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Performance - Natural seawater
Blue - Low power lamps(105W), Red - High power
lamps(180W)
Efficiency
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Prototyp system
Lamp Power
Purifier
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Prototyp system - Filter
Filter
Cleaning unit
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Electric box
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Ships control system - NorControl
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Shipowner requirements of BWT systems

• Biological effect at minimum fulfilment of IMO
  regulations
• Cost efficient
• Low manpower need
• Feasibility in onboard conditions
• Environmentally sound, e.g. no chemical added and
  low energy consumption
• Safe to ship and crew

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Take a shorter shower or Shower with a friend
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Delivering the differenceWorking for
environmentally sound operations