Page 26: of Maritime Reporter Magazine (May 2002)
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The Environment
Ballast Water Treatment Through Biodispersion
By Satya Ganti, president,
Sarva Bio Remed; and Stewart
Hutcheson, president. Safety Zone
The process of bioremediation of waste oil through patented biodispersion tech- nology, consists of a breakthrough in ballast water treatment, which has been discovered via research based on the evaluation of SpillRemed (Marine), which was developed on the basis of biodispersion technology for remedia- tion of bilge water on boats and ships in an effort to develop an environment friendly solution to the problem of oper- ational discharges by ships.
A study was conducted on board cruise ships equipped with oil water sep- arators. SpillRemed (Marine) is consid- ered a suitable replacement to chemical dispersants.
Although in volumes as large as found on such ships, it is not possible to com- pletely remediate the bilge water, by dis- persing the oil in the water it will be pos- sible to improve the separation of oil water separators.
The following is a selection of prelim- inary results based on the research con- ducted on a variety of ship types.
Introduction
According to a United Nations Envi- ronment Program survey of 1997, more than 30,000 mt of oil is released in the oceans every year. Ships contribute a very small share of 12 percent through discharges regulated by the MARPOL 73/78. which has been accepted by most of the maritime and flag nations in the world.
Bilge water stored in the bottom part of the ships does not contribute in this for the simple reason that ships are not allowed to discharge bilge water con- taining more than 15 ppm of oil.
This has put heavy responsibility on the ship operators. In order to achieve the international standards of discharge, the ships will have to install oil water separators to separate oil and discharge water as per the international guidelines.
Dispersion of bilge water subsequent to being treated with SpillRemed (Marine) for 48 hours.
The ships will have to keep the waste oil exceeding the above limit in their holds and should discharge only at receiving facilities available at each port.
However, there have been a couple of incidents where these discharges have been made by the ships in violation of the guidelines indicating that these ships may have found it difficult to follow the protocol since it affected their schedule or from operational necessity. Bilge water is probably the single largest source of waste oil produced from mar- itime activities, and it does not find any
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