Process and apparatus for increasing biological activity in waste treatment in bodies of water

A process of treating animal manure in a waste treatment body of water comprising:

• introducing animal manure into a waste stream at the inlet of a waste treatment body of water;
• and
• operating a first floating fluid circulator provided with a unidirectional rotating impeller disposed in an annular space formed between nested frusto-conical surfaces, said circulator surrounded by a boom, defining a first boom-enclosed zone, at said inlet of said waste treatment body of water;
• wherein said boom-enclosed zone comprises less than about 5% of the surface area of said waste treatment body of water.

An aerator device for aerating and/or mixing liquids while arranged in a floating mode in a liquid, said aerator device comprising:

• an upper float chassis having a frusto-conical configuration with a lower wider base thereof being equipped with an annular liquid outflow lip at essentially the surface level of the liquid;
• a sectional diverter for liquid being arranged in a lower portion of said upper float chassis;
• said sectional diverter having a lower diverter portion including diverter means for said liquid, said diverter means having an upper portion fastened to a bottom lip of said upper float chassis and forming a spacing between the bottom lip of said upper float chassis and an upper end of said sectional diverter to facilitate a generally horizontal laminar outward flow through said spacing along the surface of the liquid in which the aerator device floats;
• and
• motor-driven means being mounted on said upper float chassis connected to a rotatable impeller aspirating liquid into a lower open end of said aerator device for effectuating a flow of said liquid therefrom towards said spacing between the bottom lip and the upper end of said diverter.