A two-step process for recovering useable solids from food processing wastewater and for significantly reducing the pollutants, chemical, bacterial, and viral load. The first step is the addition of pretreatment chemicals such as metal-based coagulant, pH adjuster, oxidant or a combination thereof. The second step is pumping the chemically pretreated wastewater into a foam fractionation system where a gas is introduced into the chemically treated wastewater to create a rising foam that captures and remove solid materials from the remaining wastewater effluent. The solids are recovered for additional post-processing and the effluent is discharged for post-processing or to existing bodies of water.

A method of treating contaminated water that has ferrous ions and at least one additional mineral in solution includes the steps of: adding a sufficient quantity of a caustic agent to the contaminated water to achieve a basic pH, and adding oxygen to the contaminated water to achieve a molar ratio of oxygen to ferrous iron of at least 1:10. The pH and the oxygen concentration are sufficient to produce ferrous hydroxide (Fe(OH).sub.2) from ferrous ions and ferric hydroxide (Fe(OH).sub.3) from the ferrous hydroxide while limiting colloidal iron formation, at least the ferric hydroxide forming a precipitate. The precipitate is separated from the contaminated water.

A method of treating contaminated water that has ferrous ions and at least one additional mineral in solution includes the steps of: adding a sufficient quantity of a caustic agent to the contaminated water to achieve a basic pH, and adding oxygen to the contaminated water to achieve a molar ratio of oxygen to ferrous iron of at least 1:10. The pH and the oxygen concentration are sufficient to produce ferrous hydroxide (Fe(OH).sub.2) from ferrous ions and ferric hydroxide (Fe(OH).sub.3) from the ferrous hydroxide while limiting colloidal iron formation, at least the ferric hydroxide forming a precipitate. The precipitate is separated from the contaminated water.

A method and system providing irrigation water having improved oxygen content are provided. The method may include the steps of: withdrawing water from the water body; infusing a gas containing oxygen and/or ozone into the withdrawn water by generating nanobubbles of the gas within the water; and communicating the infused water to an irrigation pump that is configured to motivate water from the water body to an irrigation destination. The system may include a nanobubble generator that may be configured to receive water that is withdrawn from a water body. An oxygen concentrator and/or an air compressor may be configured to provide a gas containing oxygen and/or ozone to the nanobubble generator which is configured to disperse nanobubbles of the gas into the water. A conduit may communicate the infused water to an irrigation pump that is configured to motivate water from the water body to an irrigation destination.

A method and system providing irrigation water having improved oxygen content are provided. The method may include the steps of: withdrawing water from the water body; infusing a gas containing oxygen and/or ozone into the withdrawn water by generating nanobubbles of the gas within the water; and communicating the infused water to an irrigation pump that is configured to motivate water from the water body to an irrigation destination. The system may include a nanobubble generator that may be configured to receive water that is withdrawn from a water body. An oxygen concentrator and/or an air compressor may be configured to provide a gas containing oxygen and/or ozone to the nanobubble generator which is configured to disperse nanobubbles of the gas into the water. A conduit may communicate the infused water to an irrigation pump that is configured to motivate water from the water body to an irrigation destination.

A wastewater treatment management system including a plurality of monitoring stations, a treating station for introducing a treating agent to wastewater, and a principal processing facility for controlling a dose of the treating agent. A system configured to treat a wastewater stream collection system including a source of a treating agent, a metering valve, a sensor, and a controller operatively connected to the metering valve and the sensor. A non-transitory computer-readable medium including instruction that instruct a controller to perform a method of controlling addition of a treating agent into a wastewater stream collection system. A controller for a system configured to treat odor and control corrosion in a wastewater stream collection system that is operatively connectable to a metering valve for administering a treating agent to a wastewater stream collection system.

A wastewater treatment management system including a plurality of monitoring stations, a treating station for introducing a treating agent to wastewater, and a principal processing facility for controlling a dose of the treating agent. A system configured to treat a wastewater stream collection system including a source of a treating agent, a metering valve, a sensor, and a controller operatively connected to the metering valve and the sensor. A non-transitory computer-readable medium including instruction that instruct a controller to perform a method of controlling addition of a treating agent into a wastewater stream collection system. A controller for a system configured to treat odor and control corrosion in a wastewater stream collection system that is operatively connectable to a metering valve for administering a treating agent to a wastewater stream collection system.

A hydro turbulator system includes a volute that has a top duct and a bottom duct that allow fluid to enter and exit the volute. An impeller system including a first impeller and a second impeller is positioned within the volute. The first impeller and the second impeller are axially aligned. A motor is operationally connected to the impeller system so that the first impeller and the second impeller rotate upon operation of the motor. Rotation of the first impeller and the second impeller creates successive zones of high pressure and low pressure to agitate and condition fluid within the volute.

A trihalomethane (THM) and volatile organic compound (VOC) removal system includes: a storage vessel; a fluid inlet on the storage vessel where fluid enters said storage vessel; a fluid outlet on the storage vessel where fluid exits said storage vessel; and a fluid fitting on said storage vessel. Fluid leaves the storage vessel via an inlet conduit attached to the fluid fitting and flows through a pump and passes through a venturi aspirator, and returns to the storage vessel through an outlet conduit attached to the storage vessel.

The description relates to methods and apparatus that enable the efficient introduction of gases like air, oxygen and ozone into aqueous liquids. Gases are introduced into liquids for making that gas chemically or biologically available at a minimum energy expenditure. Impinging jets of liquid are directed into a pressurized saturation vessel having a gas-filled headspace and a saturation zone below the surface of the liquid at a velocity sufficient to create a turbulent impact and plunge zone. The resulting turbulence and mixing of gas and liquid in that zone under pressure, causes the gas to be driven into the liquid in the vessel and breaks up the gas and the liquid into a churning flow and creates a large number of bubbles. The resulting gas-enriched liquid is discharged from the vessel at an outlet to ensure a minimum of bubbles in the gas-enriched liquid.