A water dispenser which is connected to a pure water source and used for dispensing pure water includes: an arm mounting unit; a water dispensing gun including a nozzle for discharging pure water; a holding unit for holding the water dispensing gun; and at least two arms connecting the holding unit to the arm mounting unit. The at least two arms constitute a parallel link mechanism in which a trajectory of each arm when the at least two arms move is within the same vertical plane.

The present disclosure relates to the use of a strongly basic anion exchange resin, in the form of dimethylethanolamine (DMAE) resin, for the removal of the per- and polyfluoroalkyl substances (PFASs) from fluids such as water.

Apparatus for treating water including PFAS includes influent piping adapted to conduct untreated water from an untreated water source. A first process vessel is fluidly coupled to the influent piping to receive the untreated water. First transfer piping is adapted to conduct first vessel processed water from the first process vessel. A second process vessel is coupled to the first transfer piping to receive the first vessel processed water. An ion exchange injection mechanism is adapted to supply ion exchange material to the second process vessel. Second transfer piping is adapted to conduct second vessel processed water from the second process vessel.

A system for generating potable water from source water contains an enclosed vessel, a heating unit, an air distributor, a condenser, and a collection vessel. A method for generating potable water from source water includes heating ambient air, bubbling heated air through source water producing saturated air, cooling the saturated air producing potable water, and collecting the potable water. A method of removing contaminants from ambient air includes heating ambient air, bubbling the heated air through source water to produce treated air and contaminant rich water, discharging the treated air, and discharging the contaminant rich water.

A medicament preparation system includes a disposable cartridge with a flow path. Various sensors may be placed on the cartridge to measure qualities of the fluid flowing through the flow path. The sensors are placed in precise locations using various approaches that make manufacturing of the cartridge efficient and repeatable. A drain line that is susceptible to fouling may be preattached and various approaches are used to remove or reduce the fouling. An elastomeric contact can also be present in the medical preparation system and used in a conductivity measurement subsystem.

A water purifier filter and a water purifier comprising same, according to the present invention, comprises: a filter housing including an inlet and an outlet; a filter module which is provided inside the filter housing to purify the water having flowed in through the inlet and then supply same to the outlet, wherein the filter module comprises a first filter member formed as a hollow tube and a second filter member made of a material different from that of the first filter member.

A system for water rejuvenation for the regeneration of sorbent filters is disclosed. The system includes an anion reduction subsystem having a plurality of anionic exchange resin beds configured to remove impurity anions from a wash water used in a moisture-swing, direct-air-capture device. Each resin beds is in a vessel inside of which is configured to perform at least one of three operations: (1) conditioning resin beds by flushing them with carbonate or bicarbonate, (2) upgrading the wash water by removing impurity anions from the wash water reservoir, and (3) cleaning input water by exchanging impurity anions for carbonate or bicarbonate ions in the input feed. Each vessel cycles through these operations in the order (1), (2), (3). The system also includes a cation reduction subsystem that reduces the salinity of the wash water, and a divalent reduction subsystem that softens the wash water by removing divalent ions.

Provided is a process for treating water, wherein the water comprises dissolved ions that comprise an undesired cation, wherein the processes comprises (a) providing a collection of specified polymeric beads wherein 90% or more of the beads by volume are uniform beads; (b) then passing the water through a bed of the collection of polymeric beads to exchange the undesired ion for ions (iv), (c) then passing a regeneration solution comprising dissolved ions (v) of the same species as ions (iv) through the bed of the collection of polymeric beads to exchange ions (v) for the undesired ions.

A process for selectively separating a metallic constituent from other metals and other materials accompanying the metallic constituent in a mixture is described. The process comprises the step of providing the mixture in an aqueous solution such that the metallic constituent forms a complex anion in the solution. One or more of the other metals forms a cation or a complex cation in the solution. Another step includes contacting the solution with one or more additives to form layered double hydroxide (LDH) material in situ such that the complex anion is intercalated within interlayers of the LDH material and wherein one or more of the other metals are incorporated into the LDH material's crystal structure or matrix. Another step involves the addition of an LDH to an aqueous solution. The process involves selectively recovering the metallic constituent from the interlayer of the LDH by subjecting the LDH to a recovery treatment step(s) and as required, methods to modify the LDH to facilitate metal separation and recovery or contaminant stabilisation.

A method for removing a fluorine-containing compound from discharge water, which includes bringing discharge water containing two or more fluorine-containing compounds represented by the following general formula (1) or (2) into contact with an adsorbent so as to adsorb the two or more fluorine-containing compounds:

(H—(CF.sub.2).sub.m—COO).sub.pM.sup.1  General Formula (1):

wherein m is 3 to 19, M.sup.1 is H, a metal atom, NR.sup.b.sub.4, where R.sup.b is the same or different and is H or an organic group having 1 to 10 carbon atoms, imidazolium optionally having a substituent, pyridinium optionally having a substituent, or phosphonium optionally having a substituent; and p is 1 or 2;

(H—(CF.sub.2).sub.n—SO.sub.3).sub.qM.sup.2  General Formula (2):

wherein n is 4 to 20; M.sup.2 is H, a metal atom, NR.sup.b.sub.4, where R.sup.b is the same as above, imidazolium optionally having a substituent, pyridinium optionally having a substituent, or phosphonium optionally having a substituent; and q is 1 or 2.