Bubble curtains can be used to construct artificial visual locks for fish or other organisms. Bubble curtains are also used to prevent water masses from interfering.
Bubble curtains can be quickly established using a diffuser hose and a compressor. Typical applications are in seaports and marinas to achieve ice-free conditions. Other areas are pollutants such as oil spills separated from other bodies of water.Bubble curtains can also be used on the estuary and in ducts to prevent water types from interfering. A good bubble curtain has a tight and massive wall of bubbles, which are made at low energy costs.
Bubble curtain in a canal in the Netherlands as a boat passes. All photos: FishFlow Innovations.