A water production system with a thermal separation device that defines a cold region and a hot region, a fluid-air heat exchanger located remotely from the thermal separation device and exposed to air, and a fluid circulation loop that thermally connects the cold region of the thermal separation device to the fluid-air heat exchanger so as to cool the fluid-air heat exchanger and condense water from ambient air to produce water pure enough so that with further treatment it can be made potable. Also disclosed are filtration and dispensing features that are appropriate for a potable water supply.

A water production system with a thermal separation device that defines a cold region and a hot region, a fluid-air heat exchanger located remotely from the thermal separation device and exposed to air, and a fluid circulation loop that thermally connects the cold region of the thermal separation device to the fluid-air heat exchanger so as to cool the fluid-air heat exchanger and condense water from ambient air to produce water pure enough so that with further treatment it can be made potable. Also disclosed are filtration and dispensing features that are appropriate for a potable water supply.

Disclosed is a device for treating high-concentration organic wastewater by catalyst hydrothermal gasification, including a CHG reactor, a temporary wastewater storage tank and a condensing heat exchanger which are sequentially in loop connection. The CHG reactor includes a shell, a thermocouple, a water distribution device, and a packing support. The device of the present disclosure can quickly convert the high-concentration organic wastewater into clean energy or harmless gas at a low temperature under the action of a catalyst, so that the energy consumption of a treatment process is greatly reduced, and the treatment efficiency is improved. The device has potential application prospect.

The present invention relates to a water distribution system with hygienisation capacity. According to a first aspect, the present invention describes a water distribution system (I) comprising a water supply, a heating source (IO0) or a point of inflow of externally heated water, at least one sensor measuring water quality, a flow path for water with a user outflow UO, and a control unit for operation of the water distribution system (1), said at least one sensor measuring water quality being connected to the control unit, wherein the water distribution system (I) comprises tubing in a tubing system where at least one portion of the tubing system in the water distribution system (1) comprises a tubing portion which is made of a plastic material comprising silver and/or zinc to provide an inner anti-biofilm of that tubing portion.

A water purifier is disclosed. The water purifier according to a concept of the disclosure includes: a first module including a filter unit including a plurality of filters; a second module including a controller configured to control the first module, the second module coupled with the first module; and a water supply module including a display connected to the second module and displaying operation information of the water purifier, and a water supply nozzle receiving purified water from the first module and discharging the purified water to outside, wherein the controller is configured to control the display to display a purified water supply mode corresponding to the first module coupled with the second module.

A dispenser includes a water supply flow path to guide water supplied from a water supply source toward a filter; an auxiliary flow path to branch off at the first point of the water supply flow path and then to merge into a second point located downstream of the first point; a flow switching valve installed at the first point to control a flow from the water supply flow path to the auxiliary flow path; a water ejection nozzle through which filtered is ejected; a hot water module forming a heating flow path and configured to heat the purified water into hot water; a hot water flow path configured to guide the hot water passing through the hot water module toward the water ejection nozzle; and a controller to control the flow switching valve and the hot water module.

A solvent extraction process for desalination of seawater. The process uses a special class of polar organic solvents to preferentially dissolve salt-free water from salty water, which exhibits a reverse solubility-temperature behavior (i.e., the solubility of water in the solvent is high at room temperature but significantly lower at higher temperatures). The desalination process includes adding these special class of solvents to sea or salty water at room temperature, separating the solvent-water phase (organic phase) from the remaining mass of salt-rich water (aqueous phase), heating the solvent-water phase to a higher temperature and recovering the relatively salt-free water that separates out. The process is simple, fast, ecologically safe and energy efficient.

Divalent ions are extracted from solids by leaching to form a divalent ion-containing solution. The divalent ion-containing solution is subjected to concentration to form a concentrated divalent ion-containing solution. Precipitation of a divalent ion hydroxide salt is induced from the concentrated divalent ion-containing solution. In other cases, the concentrated divalent ion-containing solution is exposed to carbon dioxide to induce precipitation of a divalent ion carbonate salt.

A radial flow processing device includes a body with an inner chamber, a pair of inner and outer concentric tubes extending into the body, and a processing disk containing a central opening through which the inner tube extends, the disk being connected with the inner tube. The body has a top wall, a bottom wall, and at least one side wall which define the inner chamber. The bottom wall, top wall, or both, contain at least one opening through which at least one tube extends. A diameter of the inner tube is less than a diameter of the outer tube such that there is a space between both tubes, and a diameter of the disk is less than a width of the body.

A method of degrading 1,4-dioxane in the wastewater produced during the manufacture of alkyl ether sulfates is disclosed. The method includes the steps of (a) mixing from 100 to 10,000 ppm, preferably 1,000 to 4,000 ppm of ozone with the wastewater; (b) introducing H.sub.2O.sub.2 into the wastewater in an amount of 0.01 to 10, preferably 0.1 to 0.5 molar equivalents of H.sub.2O.sub.2 to ozone, and (c) mixing the ozone, H.sub.2O.sub.2, and wastewater to generate hydroxyl radicals reactive with the 1,4-dioxane, without the addition of a metal catalyst. The hydroxyl radicals react with the 1,4-dioxane and degrade it into carbon dioxide, water and/or carbonate. The method is effective to reduce a concentration of 1,4-dioxane in the wastewater from a range of about 10 ppm to about 1000 ppm of dioxane down to less than 5 ppb of 1,4-dioxane after treatment. The method is also effective for removing hydrocarbon species that may be present in the wastewater.