The Proposal and effect of anti-biofouling method at the bottom of structure in Amagasaki Canal

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  • 尼崎運河における構造物底面への生物付着防止方法の提案とその効果
  • アサリの水質浄化能に及ぼす地球温暖化の影響に関する研究
  • アマガサキ ウンガ ニ オケル コウゾウブツ テイメン エ ノ セイブツ フチャク ボウシ ホウホウ ノ テイアン ト ソノ コウカ

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The Amagasaki Canal, an enclosed waters, have been polluted and eutrophication and hypoxic condition occurred chronically. To restore the aqueous environment of the canal, a water purifying plant was designed and substantiative experiment have been conducted by Amagasaki Sea Blue Project. However, the environmental impact on the sea-bed by the organic load from sessile organisms has been concerned. To reduce the organic load, formation of air layer at the bottom of the structure is regarded as a promising method. In this study, the method was evaluated by the amount of sessile organisms, organic load, and oxygen consumption necessary for the organism resolution. As a result, sessile organisms adhesion was completely inhibited, all the organic load by sessile organisms was reduced, and the oxygen consumption was suppressed.

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