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http://dx.doi.org/10.12925/jkocs.2015.32.4.616

A Comparison Study on the Sterilization Effect of Ballast Water with Cylinder Type and Groove Type  

Kang, Ah-Young (Division of Civil, Environmental and Chemical Engineering, Changwon National University)
Kim, Sang-Pil (Taegwang Heavy Industry)
Kim, Young-Cheol (Korea Institute of Machinery & Materials)
Song, Ju-Yeong (Division of Civil, Environmental and Chemical Engineering, Changwon National University)
Publication Information
Journal of the Korean Applied Science and Technology / v.32, no.4, 2015 , pp. 616-622 More about this Journal
Abstract
Current ballast water treatment technologies are applying chemical or electrical treatment technology which are not free from secondary environmental pollution. The purpose of this study is to treat the ballast water by shear stress without an additional environmental pollution and to find out the optimal treatment apparatus. We tried to treat ballast water by applying shear stress with two different type of combination of inner and outer cylinder, such as non-pattern type and groove type. In the case of non-pattern type of inner and outer cylinder, sterilization effect was comparatively low because of a slip between inner and outer cylinder. But in the case of groove type of inner and outer cylinder, sterilization effect was superior to the non-pattern type. With a same revolutional speed of 8000rpm, an extinction effect was acquired in the gap of 1 mm of inner and outer cylinder at non-pattern type, but 3mm of that of groove type.
Keywords
Ballast water; Physical Sterilization; Shear stress; Groove type; Non pattern type;
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Times Cited By KSCI : 1  (Citation Analysis)
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