The Environment
special use on shore. Yet it imposes a great burden on
the ships and ports for collecting and disposal of the
waste oil. Federal bodies like navies have their own
facilities on shore where the naval ships can unload
their bilge water without ships paying for the facility,
but that is not the case with private operators.
The problem of bilge water disposal is same for small
boats and their operators as for the bigger ships.
In situ Remediation through
Biodispersion Technology
In view of such vast amounts of oil present in associ-
ation with water, there is a need to treat this pollution
at source and help reduce the "hidden" overheads
incurred in treating oil pollution. Remediation at
source needs to have the following properties to be a
successful solution:
• Should be environmentally safe
• Should be Fast acting and remediation should take
place in days.
• Should not disturb the existing ecosystem.
• Should be available in a Ready-To-Use (RTU)
form
• Should not require supplementary addition of
nutrients.
• Should require little or no human intervention.
• Should not contain any genetically modified bac-
teria
Products developed on the basis of patented 'Biodis-
persion' technology developed by Sarva BioRemed is
one such solution to the problem by treating waste oil
on site without affecting the environment. SpillRemed
(Marine) and SpillRemed (FreshWater) can be
employed in salt water or fresh water situation respec-
tively.
Both these products are available in a Ready To Use
(RTU) form and the treatment does not require any
addition of nutrients.
Remediation of Bilge Oil on a Cruise Ship
Unlike studies on boats, studies on larger vessels
were carried out in three phases namely, bench scale
studies, compatibility studies and direct service trial.
Bench Scale Studies
Samples of bilge oil were directly collected from the
cruise ship during transfer of the oil to the receiving
facility. The oil was thick, black, viscous and hot at the
time of collection suggesting that a greater component
of low boiling point fraction may have been
removed during transfer. The thick oil was
brought to the laboratory and a small quantity
was added to a fish tank containing 20 gallons
of salt water
The water was aerated using a fish tank bub-
bler locally available. It was found that the oil
became uniformly dispersed in 48 hours of
time suggesting that SpillRemed (Marine) was
effective on the complex mixture of oil and
was under active remediation.
Compatibility Studies
Once it was observed that SpillRemed
(Marine) was effective on the complex mix-
ture of oils in the bilge, it was decided to
explore the possibility of using SpillRemed
(Marine) in the bilge tank equipped with an oil
water separator manufactured by Marine Floe
of Sweden. The Superintendent Engineer of
the cruise line suggested that we determine the
compatibility of SpillRemed (Marine) with
the OWS as a first step in the trials on board
their ship. Sample of SpillRemed (Marine)
was sent to MarineFloc for their evaluation of
compatibility with their OWS. The manufac-
turing company carried out their evaluation
and submitted their report indicating that
SpillRemed (Marine) was compatible with
their OWS. Report of the manufacturer is
submitted as an appendix to the paper.
Protect Your Cargo
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Ultrasonic technology
provides fast, dry and
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inspections.
Ultrasonic Detector SDT-150 or 170
f >
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Watertight doors, cargo port
doors, portlights and window
seals can be inspected using
ultrasonic technology.
Approved by ABS, Lloyds Register, Det
Norske Veritas, Germanischer Lloyd and
Bureau Veritas.
Muldoon Marine Services, Inc.
P.O. Box 41340 Long Beach, CA 90853
Ph. (562) 432-5670 FAX (562) 432-662
www. m uldoonmarine. com
E-mail: muldoonmarine@mitldoonmarine. com
Specialists in Commercial Diving, NDT, High CapacityPumping, Salvage
Ship Board Trials
The ship board trials were initiated after completion
of all the above formalities and the Superintendent
Engineer was shown the test reports. A total of 200
liters of SpillRemed (Marine) was supplied to the ship.
Although the ship left New York, the trials actually
began on the return journey to Florida.
The bilge water contained 30 percent of oil and the
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.1mm. It is designed for the harshest environments
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Circle 241 on Reader Service Card or visit www.maritimereporterinfo.com
May, 2002
Circle 217 on Reader Service Card
or visit www.maritimereporterinfo.com
27
Digital Wave Publishing