Especially oxidative processes in the clarification of wastewater require a lot of oxygen (COD, BOD), which is introduced into the wastewater to be treated via pipes at the bottom of the clarifier.

An average increase of the oxygen content by approx. 150% is achieved by this method.

This aeration method is very inefficient because most of the oxygen quickly floats up and is released ineffectively at the surface.

In inland fish farming, the oxygen content in the water is crucial for stocking density or breeding success and fish health.

High temperatures in summer drastically reduce the amount of gases found dissolved in the water (5 mg/ltr - < 3 mg & ltr).

Without constant addition of fresh water or oxygen input from aeration systems, there is a risk of fish mortality.

Without constant addition of fresh water or oxygen input by aeration systems, there is a risk of ponds, lakes or wells overturning and forming stinking brackish ponds.

APW has refined Schauberger's principle of water activation and made it technically usable. In a fluidically calculated and optimized chamber, water and air or pure oxygen are introduced under pressure and swirled (activated) and the additional oxygen is dissolved in the water by the high pressure.

To prevent the oxygen from outgassing later in a depressurized environment, the water is cavitated with the high amount of dissolved oxygen. Nano air bubbles (Ø 0.05 mm) are formed.

The smaller these air bubbles are, the less they tend to float and remain stable in the water for a long time.

APW masters the above described process to produce as many and as small as possible nano air bubbles.

APW therefore succeeds in both efficiently and cost-effectively covering the oxygen demand in sewage treatment processes and in permanently and sustainably increasing the oxygen content for fish farms and renaturating tilted waters.