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Research information O2-No.3

Research information O2-No.3

No. 3: Comparison of the potential for dissolving oxygen gas into
  the water among eco-Bubble® series     (Feb. 10, 2014)

We have developed the micro/nano-bubble generators with nozzles of DDHRS (Dual-chamber/Dual-vortex High-speed Rotation System), eco-Bubble® series, to realize drastic increase of the potential for dissolving oxygen gas into the water. Now, we deal a handy model, eco-Bubble®400 with a small pump and the single nozzle, and enhanced models of the potential for dissolving oxygen gas (eco-Bubble®-3N with the three nozzles, and eco-Bubble®-5N with the five nozzles) that work with a land pump). The following figure compares the potential for dissolving oxygen gas into the water among these devices.

 画像の説明

  The time required to increase DO level of the water between 20% and 100% in a tank with 6.5 m3 of sea water was compared among the three different N series models of eco-Bubble®. The air flow rate of each nozzle was set at 5.6 L/min.
  eco-Bubble®-1N with a single nozzle has about four times larger capacity for increasing DO of the water than that by a conventional diffuser. In the same water conditions that the aeration with eco-Bubble®-1N took about 113 min. to reach 90% DO saturation from 20% DO saturation, the aeration with eco-Bubble®-3N and -5N shorten the time required to reach 90% saturation DO saturation to 37 min. (about 1/3) and 14 min. (about 1/8), respectively.

eco-Bubble®-3N and -5N are usuful for bubbling a large amount of water.

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