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If you visit Virelles and look carefully at the pond, you will see a strange object floating in the water.
The wind-powered aerator which helps to prevent a build-up of algae on the surface of the water.
How it works :
A wind turbine drives an underwater propeller. This in turn:
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oxygenates the water,
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prevents excessive growth of algae by reducing the concentration of their main nutrients (nitrates and phosphates),
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prevents sludge building up and clogging the surface of the water.
The device was designed by the Aérolac® company.
 Advantages
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Does not consume any electricity
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Easy to install and move around
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Works well whatever the direction of the wind
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Silent
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Stable in the wind
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Does not bring silt back into suspension
Project financed with support from the Electrabel Fund, managed by the King Baudouin Foundation.
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