Possibility of Seawater Processing for Ship's Ballast Water by Atmospheric Pressure Discharge Plasma-1st Report

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Other Title
  • 大気圧放電プラズマ照射による海水処理の可能性―第１報
  • タイキアツ ホウデン プラズマ ショウシャ ニ ヨル カイスイ ショリ ノ カノウセイ ダイ 1ポウ
  • -1st Report
  • -第1報

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Abstract

The International Maritime Organization (IMO) has been adopted the International Convention for the Control and Management of Ship's Ballast Water and Sediments (the Ballast Water Management Convention) in 2004. The atmospheric pressure non-equilibrium discharge is useful as one of the plasma generation methods that are the most suitable, when it adapts to energy and environmental study. By irradiating the plasma to the seawater surface, the possibilities of ballast processing were examined. As the effect, it was proven that pH value decreases. The following factors effect the pH value: 1) The reaction with the radical. 2) The bond dissociation by the collision with electrons or ions. It is considered from the results that there is a possibility of ballast processing by plasma irradiation. However, it is necessary to carry out further verification.

Journal

  • Marine Engineering

    Marine Engineering 42 (4), 682-687, 2007

    The Japan Institute of Marine Engineering

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