Water jet air compressors for

Pressurised dissolved air flotation

Pressurised dissolved air flotation is a method of separating suspended solids. Microfine air bubbles adhering to the solid particles make them float to the surface where they can be removed. The air bubbles escape from the pressurised water being enriched with gas by lowering the pressure downstream of the relief valve.

To saturate the pressurised water a partial clarified water flow is utilised as motive flow for the water jet air compressor. Compressed air is supplied to its suction side. The mixture comprising of motive and suction flow is fed – below liquid level – into the saturation tank. A fine dispersion of air in the motive flow achieves an optimum air saturation degree of the pressurised water over the whole working range.

Dissolved air flotation for secondary clarification in a biological water treatment plant
Dissolved air flotation for secondary clarification in a biological water treatment plant

Further information

Learn more about: Liquid jet gas compressor

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