An apparatus for aerating bodies of water includes a floating platform, a motor supported by the floating platform, a transmission which is coupled to the motor and whose output shaft is in the form of a hollow shaft, a fan for supplying air through an air supply line connected thereto, wherein the air supply line is connected to one end of the hollow shaft, a hollow stirring shaft coupled to the other end of the hollow shaft, an stirrer affixed to the free end of the approximately vertical stirring shaft, wherein the stirrer is designated as a hollow body and has a central opening through which air supplied by the stirring shaft can pass, and a multiplicity of air outlet openings.

An apparatus for aerating bodies of water includes a floating platform, a motor supported by the floating platform, a transmission which is coupled to the motor and whose output shaft is in the form of a hollow shaft, a fan for supplying air through an air supply line connected thereto, wherein the air supply line is connected to one end of the hollow shaft, a hollow stirring shaft coupled to the other end of the hollow shaft, an stirrer affixed to the free end of the approximately vertical stirring shaft, wherein the stirrer is designated as a hollow body and has a central opening through which air supplied by the stirring shaft can pass, and a multiplicity of air outlet openings.

A stabilized, gas-infused liquids containing ultra high concentrations of infused gas, produced by: generating a gas-infused liquid in a sealed vessel under a high pressure of at least 20 psi; stabilizing the gas-infused liquid by passing the liquid while still under the high pressure through a tubular flow path arrangement which compresses the infused gas into nano bubbles in the liquid; infusing an additional amount of the gas into the stabilized liquid by injecting the same, while still under high pressure, back into the sealed pressure vessel along with more of the gas; and again stabilizing the liquid by again passing liquid, while still under the high pressure, through the tubular flow path arrangement to thereby form the additional amount of infused gas into nano bubbles in the liquid.

A stabilized, gas-infused liquids containing ultra high concentrations of infused gas, produced by: generating a gas-infused liquid in a sealed vessel under a high pressure of at least 20 psi; stabilizing the gas-infused liquid by passing the liquid while still under the high pressure through a tubular flow path arrangement which compresses the infused gas into nano bubbles in the liquid; infusing an additional amount of the gas into the stabilized liquid by injecting the same, while still under high pressure, back into the sealed pressure vessel along with more of the gas; and again stabilizing the liquid by again passing liquid, while still under the high pressure, through the tubular flow path arrangement to thereby form the additional amount of infused gas into nano bubbles in the liquid.

A ground water contamination remediation process includes the steps of identifying a source and location of land-based ground water contamination and excavating the soil above and within the location of the contamination to create a void. The width and depth of the void is increased to a predetermined size until the contaminated ground water is exposed creating a man-made treatment lake by allowing the contaminated ground water to partially fill the void. In one embodiment, the water in the treatment lake is aerated to reduce the amounts of hydrogen sulfide, methane, and biodegradable compounds in the contaminated water. In another embodiment, an adsorbent material is added to the treatment lake so to isolate per- and poly-fluoroalkyl substances (PFAS). The adsorbent material is applied to or mixed into PFAS contaminated water, PFAS is adsorbed, and the solid adsorbent materials settle to the bottom of the lake for subsequent management or removal.

A ground water contamination remediation process includes the steps of identifying a source and location of land-based ground water contamination and excavating the soil above and within the location of the contamination to create a void. The width and depth of the void is increased to a predetermined size until the contaminated ground water is exposed creating a man-made treatment lake by allowing the contaminated ground water to partially fill the void. In one embodiment, the water in the treatment lake is aerated to reduce the amounts of hydrogen sulfide, methane, and biodegradable compounds in the contaminated water. In another embodiment, an adsorbent material is added to the treatment lake so to isolate per- and poly-fluoroalkyl substances (PFAS). The adsorbent material is applied to or mixed into PFAS contaminated water, PFAS is adsorbed, and the solid adsorbent materials settle to the bottom of the lake for subsequent management or removal.

A negative pressure aeration system, created by atmospheric siphon pressure above the waterline and mechanical pump suction below the waterline, which impedes the growth of organic matter. A waterfall flow in vacuum effect is created within a system that aerates the raw water as it falls through the air chamber of the system housing, which assists in the suppression of organic growth by reducing the contact surface area within the system. A chemical tank allows an anti-fouling chemical to be added to the entire system and a power supply allows flexible electrodes driven by a vacuum to create a further anti-fouling benefit throughout the components of the system.

A negative pressure aeration system, created by atmospheric siphon pressure above the waterline and mechanical pump suction below the waterline, which impedes the growth of organic matter. A waterfall flow in vacuum effect is created within a system that aerates the raw water as it falls through the air chamber of the system housing, which assists in the suppression of organic growth by reducing the contact surface area within the system. A chemical tank allows an anti-fouling chemical to be added to the entire system and a power supply allows flexible electrodes driven by a vacuum to create a further anti-fouling benefit throughout the components of the system.

An aeration device has an entrainment chamber for mixing air and water in a body of water, wherein the air becomes partially dissolved into the water, thus creating water enriched with dissolved air, and excess air that did not dissolve into the water. An air input introduces air into the aeration device and a water input introduces water into the aeration device. Water enriched with dissolved air exits a water discharge of the aeration device at a first level within the body of water. An air exhaust manifold wherein the excess air can exit the water discharge while remaining inside the aeration device, an exhaust stack that permits the excess air to travel up from the air exhaust manifold, and an exhaust that permits the excess air to exit the aeration device at a second level within or above the body of water.

A system, method, and apparatus for oxygenation of a source of water, to increase the dissolved oxygen content of water. Aspects of the present invention harnesses and directs the power of water flowing through the system to extract oxygen present in air, rather than relying on the injection of gas or using other mechanical means. The water oxygenator is formed as an elongate cylindrical tube having a water inlet at a first end, a water outlet at a second end, and an air inlet proximal to the first end. The elongate cylindrical tube has an outer sidewall defining a mixing chamber within an interior cavity of the water oxygenator. The mixing chamber includes a plurality of baffles that are disposed in a spaced apart relation along a longitudinal length of the interior cavity.