The present disclosure is a method of removing water and contaminants from an aqueous feed stream comprising a water soluble process liquid. Embodiments of the method may include splitting the method into stages, vaporising the process liquid by direct contact with a heated heating fluid, removing precipitated contaminants by chemical means, and treating the heating fluid to maintain or enhance its properties.

The present disclosure is a method of removing water and contaminants from an aqueous feed stream comprising a water soluble process liquid. Embodiments of the method may include splitting the method into stages, vaporising the process liquid by direct contact with a heated heating fluid, removing precipitated contaminants by chemical means, and treating the heating fluid to maintain or enhance its properties.

A system and method to partially vaporize a process or feed water stream does so in a liquid pool zone of a vessel as the stream comes into contact with a heating medium that is less volatile than the process stream. To keep the pool hot, the heating medium can be recirculated through a heater of a pump-around loop or a heater can be placed in the liquid pool. As the process stream is partially vaporized, any solids present in the process stream together with the unvaporized process or feed water stream move into the heating medium. These solids and unvaporized liquids may be further removed from the heating medium in the pool or in the pump-around loop. The vaporized process stream can be further condensed. Any heat recovered can be used to pre-heat the process stream or in the pump-around loop's heater in case of mechanical vapor recovery.

A system and method to partially vaporize a process or feed water stream does so in a liquid pool zone of a vessel as the stream comes into contact with a heating medium that is less volatile than the process stream. To keep the pool hot, the heating medium can be recirculated through a heater of a pump-around loop or a heater can be placed in the liquid pool. As the process stream is partially vaporized, any solids present in the process stream together with the unvaporized process or feed water stream move into the heating medium. These solids and unvaporized liquids may be further removed from the heating medium in the pool or in the pump-around loop. The vaporized process stream can be further condensed. Any heat recovered can be used to pre-heat the process stream or in the pump-around loop's heater in case of mechanical vapor recovery.

A system for preparing nanoscale zero-valent iron by reverse filtration in a non-open inert atmosphere is provided including an inert gas bottle, a gas monitoring and buffering device, a main reaction device configured as a three-necked flask, a condensing device including a condenser tube and a cold source, a waste liquid collecting device configured as a waste liquid collecting bottle, a liquid sealing device including a second liquid sealing bottle connected with the waste liquid collecting bottle through a first connecting-pipe, and an extraction pressure adjusting device including a third triple valve and a vacuum pump, all of which are connected by pipelines in sequence. Three necks of the three-necked flask are respectively provided with a first triple valve, a single-hole rubber plug pierced with a liquid-taking pipe, and a second triple valve. The second liquid sealing bottle is connected with the third triple valve.

A vaporizing apparatus for thin film deposition is provided. The vaporizing apparatus includes an atomizer configured to mix a source injected through a source inlet and a carrier gas injected through a carrier gas inlet and spray a mixed gas, a vaporizing unit including a first vaporization area and a second vaporization area, which are configured to vaporize the mixed gas sprayed from the atomizer, and configured to discharge a vaporized gas as a process gas through an outlet, and a heating unit configured to maintain the mixed gas in the vaporizing unit at a fixed temperature. The heating unit includes a first heating part arranged to surround the first vaporization area and configured to maintain the temperature of the mixed gas in the first vaporization area and a second heating part arranged to enclose the second vaporization area with the first heating part and configured to maintain the temperature of the mixed gas in the second vaporizing space.

Rapid evaporation of water for desalination and dewatering using nanobubbles and micro-droplets is disclosed. Warm nanobubbles of air are injected into seawater or another water source to be treated, and the normal stasis of the nanobubbles is disrupted with ultrasonic energy. The nanobubbles implode and violently recombine into microbubbles. Energized by the effects of the nanobubble state change, these energetic, relatively high surface area microbubbles bubbles quickly rise to the surface of the water, creating an aerosol of micro-water droplets above the surface that is drawn into a dry, warm stream of air and rapidly evaporates, precipitating out salt crystals. The air is then cooled with a chiller, condensing the moisture in the air into fresh water.

Rapid evaporation of water for desalination and dewatering using nanobubbles and micro-droplets is disclosed. Warm nanobubbles of air are injected into seawater or another water source to be treated, and the normal stasis of the nanobubbles is disrupted with ultrasonic energy. The nanobubbles implode and violently recombine into microbubbles. Energized by the effects of the nanobubble state change, these energetic, relatively high surface area microbubbles bubbles quickly rise to the surface of the water, creating an aerosol of micro-water droplets above the surface that is drawn into a dry, warm stream of air and rapidly evaporates, precipitating out salt crystals. The air is then cooled with a chiller, condensing the moisture in the air into fresh water.

A cooling and desalination system includes a humidification-dehumidification (HDH) system and an ejector cooling cycle (ECC) system. The HDH system includes a heater for heating saline water, a humidifier for humidifying a carrier gas using the saline water, and a dehumidifier for dehumidifying the carrier gas to obtain desalinated water. The ECC system includes a generator for generating a primary flow of a refrigerant, an evaporator for cooling and providing a secondary flow of the refrigerant, an ejector for the primary flow and the secondary flow to pass through to obtain a super-heated stream, and a condenser. The heater and the generator are configured to connect to a heat source. The ECC system and the HDH system are connected at the condenser for heat exchange between the super-heated stream and the saline water to pre-heat the saline water.

A multimode system for cooling and desalination includes a humidification-dehumidification (HDH) system, an ejector cooling cycle (ECC) system and valves. The HDH system includes a heater, a humidifier and a dehumidifier. The ECC system includes a generator, an evaporator, an ejector and a condenser. The valves are configured to connect to inlets and outlets of the heater, the generator and a heat source so that by selectively opening and closing the valves, the heat source is connected to the heater while disconnected from the generator, or connected to the generator while disconnected from the heater, or connected to both the heater and the generator, or disconnected from both the heater and the generator. The ECC system and the HDH system are connected at the condenser for heat exchange.