Provided is a liquid processing apparatus and a liquid processing method for reducing a waste amount of a high specific gravity liquid. The liquid processing apparatus includes: a supply pump; a bubble tank including an inflow port, an overflow port, and a return port; a microbubble generator disposed outside the bubble tank; a recovery tank having a recovery port to recover the processing liquid overflown from a first liquid level to the tank; a separation tank including a settling tank connected to the overflow port, and a floating tank connected to the settling tank at a lower portion, and an ejector having a inlet port connected to the supply pump, a suction port connected the suction body, and a discharge port connected to the return port.

A flotation apparatus for separating oil from a dispersion containing water as a continuous phase and oil as a dispersed phase. The apparatus comprises a vessel having one or more longitudinal cell sections in its longitudinal direction, at least one of the one or more longitudinal cell sections comprising: an underflow weir, an overflow weir displaced downstream from the underflow weir, a gas injection structure located below the underflow weir or in the channel formed between the underflow weir and the overflow weir, a removal structure for removing a fraction formed during the operation of the flotation apparatus on the liquid level from the liquid level, and a hydraulic structure for hydraulically pushing the fraction formed during the operation of the flotation apparatus on the liquid level into the removal structure using a liquid stream, a liquid/gas stream and/or a gas stream that is ejected by the hydraulic structure.

Flotation separation apparatus and methods are described herein, comprising a vessel having a plurality of flow guides oriented vertically in the vessel, a liquid inlet at a lower part of the vessel, a gas inlet at the lower part of the vessel, a first liquid outlet at an upper part of the vessel, a second liquid outlet at the lower part of the vessel, and a gas outlet at the upper part of the vessel.

A flotation apparatus for separating oil from a dispersion containing water as a continuous phase and oil as a dispersed phase. The apparatus comprises a vessel having one or more longitudinal cell sections in its longitudinal direction, at least one of the one or more longitudinal cell sections comprising: an underflow weir, an overflow weir displaced downstream from the underflow weir, a gas injection structure located below the underflow weir or in the channel formed between the underflow weir and the overflow weir, a removal structure for removing a fraction formed during the operation of the flotation apparatus on the liquid level from the liquid level, and a hydraulic structure for hydraulically pushing the fraction formed during the operation of the flotation apparatus on the liquid level into the removal structure using a liquid stream, a liquid/gas stream and/or a gas stream that is ejected by the hydraulic structure.

Flotation separation apparatus and methods are described herein, comprising a vessel having a plurality of flow guides oriented vertically in the vessel, a liquid inlet at a lower part of the vessel, a gas inlet at the lower part of the vessel, a first liquid outlet at an upper part of the vessel, a second liquid outlet at the lower part of the vessel, and a gas outlet at the upper part of the vessel.

Flotation separation apparatus and methods are described herein, comprising a vessel having a plurality of flow guides oriented vertically in the vessel, a liquid inlet at a lower part of the vessel, a gas inlet at the lower part of the vessel, a first liquid outlet at an upper part of the vessel, a second liquid outlet at the lower part of the vessel, and a gas outlet at the upper part of the vessel.

An apparatus (12) for treating water, in particular for removing surfactants from waste water, includes a vessel (14), defining an inlet (16) for receiving waste water containing air bubbles, and an outlet (20) for the exit of water, following treatment. Inside the vessel there is at least one tubular member (50) having a lower open end (52) into which the flow of waste water from the inlet may be directed in use. The tubular member (50) extends from the inlet towards a top of the vessel where an upper exit (54) from the tubular member is defined. In use, most un-aerated water entering the vessel through the inlet can exit the tubular member at the lower open end. Foam formed in the water by the air bubbles may travel up the tubular member to the upper exit, which is preferably located above the water level (60) in the vessel.

Methods for separating lean and fat from beef or other meats and the separation apparatus are disclosed. The methods use microbiocidal fluids to reduce or eliminate possible sources of contamination.

A water treatment system includes an inlet line, a tank in fluid communication with the inlet line to receive therefrom a fluid flow comprising hydrocarbons and water. The tank includes components configured to separate the fluid flow into a hydrocarbon flow and a water flow, with the water flow including a residual amount of hydrocarbons. A first outlet line is in fluid communication with the tank to discharge therefrom the water flow. A second outlet line is in fluid communication with the tank to discharge therefrom the hydrocarbon flow. A sensor is associated with one of the inlet line, the first outlet line, and the second outlet line, and a valve is associated with the second outlet line. In addition, a controller is configured to determine a property of at least one of the fluid flow, the hydrocarbon flow, and the water flow using the sensor, and to control the valve based upon the property so as to reduce the residual amount of hydrocarbons in the water flow.

A froth flotation cell for treating mineral ore particles suspended in slurry includes a tank, a gas supply, a first froth collection channel, a second froth collection channel arranged between the centre of the tank and the first froth collection channel, and a radial froth collection launder including a radial froth overflow lip, and extending from the first froth collection channel towards the second froth collection channel. The froth flotation cell further includes a radial froth crowder including a crowding sidewall, and extending from the second froth collection channel to the first froth collection channel. Further, a froth flotation line, its use and a froth flotation method are presented.