Abstract: The rotating disc aerator is a portable aeration device utilizing atmospheric air, rather than using a compressor for its air supply. The aerator includes a motorized base having a rotary shaft and diametrically opposed, oppositely reciprocating rods extending therefrom. A plurality of discs are disposed along the shaft and are connected to the ends of the rods. The discs are free to slide along the shaft as the rods reciprocate, but rotate with the shaft. A plurality of resilient absorbent elements (sponges, etc.) are installed along the rotary shaft between the discs. The aerator assembly is buoyant, about one-half of each absorbent element extending above the surface of the water when the aerator is placed therein. The upper portions of the absorbent elements absorb air as they rotate above the surface, and are compressed to expel the air into the water as they rotate beneath the water surface.

Abstract: The rotating disc aerator is a portable aeration device utilizing atmospheric air, rather than using a compressor for its air supply. The aerator includes a motorized base having a rotary shaft and diametrically opposed, oppositely reciprocating rods extending therefrom. A plurality of discs are disposed along the shaft and are connected to the ends of the rods. The discs are free to slide along the shaft as the rods reciprocate, but rotate with the shaft. A plurality of resilient absorbent elements (sponges, etc.) are installed along the rotary shaft between the discs. The aerator assembly is buoyant, about one-half of each absorbent element extending above the surface of the water when the aerator is placed therein. The upper portions of the absorbent elements absorb air as they rotate above the surface, and are compressed to expel the air into the water as they rotate beneath the water surface.

Abstract: The buoyant aerator array with remote air supply has a plurality of aerators disposed in a body of water and supplied with air from a single remote source. The remote source may be land-based or based upon a floating vessel. An air supply line extends from the remote air source to each aerator. Each line is supported by one or more rigid poles or columns anchored into the floor of the body of water. Two aerator embodiments are described herein, with each having a toroidal float. In one embodiment, the entire aerator structure floats to hold the aerator at a constant level, and is held in position by restraining cables. Another embodiment has a plurality legs anchored to the bottom, the float and attached aerator riding along the legs to maintain a constant aerator level below the surface as the water level changes.

Abstract: The buoyant aerator with support legs is disposed in a body of water and supplied with air from a remote source. The remote source may be land-based or based upon a floating vessel. An air supply line extends from the remote air source to the aerator, the supply line being supported by one or more rigid poles or columns anchored into the floor of the body of water. The entire aerator structure floats to hold the aerator at a constant level and is held in position by restraining cables. A plurality of rigid support legs extends from the periphery of the float to support the aerator in conditions where the water level drops below the height of the aerator as defined by the vertical distance between the float and the support pads of the legs.

Abstract: The anchored aerator has a non-buoyant sunken base and a plurality of rigid guide columns extending upward therefrom. A toroidal float is captured between the guide columns, and rises and descends with changes in water level. A down tube passes through the center of the float. A diffuser having a number of radially extending diffuser pipes is installed at the lower end of the down tube. Air is supplied from a remote source, either land-based or based upon a floating vessel. The remote source may supply air to more than one aerator. An air supply line extends from the remote air source to each aerator. Each supply line is supported by one or more rigid columns anchored into the floor of the body of water. The primary aerator structure floats to hold the aerator at a constant level, and is held in position by restraining cables.

Abstract: The aerator air distribution manifold has a central plenum disposed at the lower end of a concentric rigid downpipe or duct, and a radial array of diffuser tubes extending from the plenum. Since the aerators are buoyant, the aeration tubes are deployed at a constant, uniform depth below the surface of the water at all times, regardless of the water level. All of the aerator manifolds receive their air supply from a remotely disposed air source. The air source may be based on shore, or may be based upon a ship or other floating vessel. A flexible air supply line or hose extends from the air supply to each of the buoyant aerators, the hose being supported by one or more rigid columns or poles anchored into the bottom of the body of water in which the aerators are placed.