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（8）米国環境保護庁及び米国コーストガードに対する当協会実施バラスト水関連調査研究事業プレゼンテーション
Studies and Researches on Ship's Ballast Water Treatment
Nov.16, 2004
The Jpan Association of Marine Safety (JAMS)
Migration Route of Aquatic Organism
・Natural Route
・ocean currents
・adhering to large migratory organisms such as whales and tuna
・global environmental changes
・Artificial Route
・Aquaculture including Seeding Discharge
・Coastal Development
・Ship's ballast water, etc.
| Estimated quantity of ballast water transferred to and from Japan |
The total number of ships called Japan
| Region of source and invasion of organism migrated by means of ballast water |
| data from Focus on IMO, 1998 |
Ballast Water Management under research and development in Japan
・Non-Ballast water ship
・Ballast water treatment technology
Filtration, Special Pipe system, chemical treatment (chlorine, hydrogen peroxide, ozone), electric chemical treatment, superconductivity, etc.
Ballast water treatment technology experimented by the JAMS
・1992: Chemical treatment (chlorine and hydrogen peroxide)
・1997: Chemical treatment (ozone)
・1998: Electric chemical treatment
・1999: Mixer Pipe
・2001: Special Pipe
・2002: Improved Special Pipe
・2003: Special Pipe (on board testing)
・2004: Hybrid Special Pipe system using ozone
| Mechanical treatment (Prototype on board testing using the Improved Special Pipe system 2003): |
1) Organisms of 10-50um could be reduced to the level to meet D-2 standard regulated in the International Ballast Water Convention.
2) Organisms greater than or equal to 50μm could be reduced to comply with the D-2 standard in some cases.
3) Bacteria: Vibrio cholerae was not detected. Escherichia coli was found 1-3 cfu/100 ml at Los Angeles, Seattle and Vancouver, and it means complying with the D-2 standard.
| Mortality efficacy on aquatic organism by means of a mechanical treatment using the Improved Special Pipe system |
| Test-bed testing by Hybrid Special Pipe system using Ozone in 2004 |
| Mortality efficacy test on aquatic organism (plankton) by using Hybrid Special Pipe system |
| Mortality efficacy test on bacteria by using Hybrid Special Pipe system |
Conclusion
・It is believed that Hybrid Special Pipe System using ozone is able to meet the standard regulated in the Ballast Water Convention.
・Further development for minimizing the purged Ozone, downsizing the whole system and Cost effectiveness are to be considered.
・Research and development for other measures are simultaneously planned.
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