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http://dx.doi.org/10.7846/JKOSMEE.2012.15.3.219

Consideration on the Concentration of the Active Substances Produced by the Ballast Water Treatment System  

Kim, Eun-Chan (Korea Institute of Ocean Science and Technology)
Oh, Jeong-Hwan (Korea Institute of Ocean Science and Technology)
Lee, Seung-Guk (Korea Institute of Ocean Science and Technology)
Publication Information
Journal of the Korean Society for Marine Environment & Energy / v.15, no.3, 2012 , pp. 219-226 More about this Journal
Abstract
The International Maritime Organization (IMO) adopted the International Convention for the Control and Management of Ships' Ballast Water and Sediments in 2004 to prevent the transfer of aquatic organisms via ballast water. Thirty-four ballast water treatment systems were granted IMO active substance basic approval, among which twenty systems were granted final approval. This paper is an in-depth consideration of the mechanism principles of the treatment systems that received active substance basic or final approval from IMO, and on the concentration of Total Residual Oxidant (TRO). The TRO maximum allowable discharge concentration was reduced by neutralization equipment, resulting with a concentration lower than 0.2 ppm. However, between various treatment systems TRO maximum allowable dosage showed large differences, ranging from 1 to 15 ppm. The discrepancies of treatment allowable dosage concentration between different treatment systems are largely due to the properties of species and water conditions such as the temperature and turbidity, rather than the characteristics of treatment systems and the type or presence of filters etc.
Keywords
Ballast Water; Treatment System; Electrolysis; Ozone; Active Substance; IMO;
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  • Reference
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