A novel cell for generating ozonated water, the cell comprises a nafion membrane separating a diamond coated anode, and a gold surfaced cathode enclosed within a cell housing with the catalyst side of the nafion membrane facing the cathode. The cell housing has a cathode housing portion and an anode housing portion separated by the membrane, each housing portion having ridges to enhance substantially even flow of fluid over the cathode and anode. The housing portions contain O-rings in grooves to prevent leaks, and alignment features to keep the electrodes aligned. The cathode and anode have an array of holes allowing fluid to penetrate to the surface of the niobium membrane. Input ports allow fluid to flow into the housing and over the anode and cathode and then out of the housing through outlet ports. The housing may also incorporate an integrated spectral photometer including a bubble trap.

A system and method for electromagnetic activation or active metals generation is disclosed herein. This system may include: a cylindrical housing; a plurality of inductor coils connected to a three phase alternating current source, where inductor coils are positioned in an interior space between the cylindrical housing and an exterior face of a conduit; the conduit installed inside the cylindrical housing, where the conduit includes a dielectric section with a perforated baffle a mechanism to secure the conduit to the cylindrical housing, a tube for adding a chemically active agent into the conduit, a dielectric section with a lid and a gas valve positioned on top of the lid at an end of the conduit, and a plurality of metal particles occupying the internal volume of the conduit and maintained in a relative position with respect to the inductor coils.

An integrated, membrane-based process to produce purified water and conversion of salt to high value chemicals from oil and gas well produced water is described. A liquid stream including water and dissolved salt is flowed through pretreatment units and one or more desalination and concentration units which remove at least a portion of the water to form a brine enriched in dissolved salt. The purified high-density brine may be subjected to electrically-enforced salt dissociation techniques to produce chemicals from oil and gas produced water.

An electrochemical oxidation reactor includes rotatable electrodes inside a reactor vessel. The electrodes are mounted to support plates, which in turn are mounted on shafts. The plates are attached to each other in a spaced relationship so that a gap is formed therebetween. The plates are each electrically insulated from each other. The electrodes are mounted to the inside surfaces of these plates, inside the gap. The gap is sized to receive liquid to be treated so that liquid located within the gap will react with the electrodes. An electrical charge is applied to each shaft so that a dielectric is formed across the gap within the fluid located in the gap. According to a first embodiment, an electrochemical reactor includes containing two spaced electrode support plates. According to another embodiment, an electrochemical reactor includes several spaced electrode support plates.

An electrode assembly for use in an electrochemical cell for the production of ozone from water is provided, the electrode assembly comprising an electrode body formed from a polycrystalline diamond, the electrode body comprising first and second opposing contact surfaces, the first contact. surface for contacting a semi-permeable membrane; wherein the electrode assembly further comprises a first layer comprising an electrically conductive material, the first layer extending across at least a portion of the second contact surface of the electrode body. An electrochemical cell comprising the electrode assembly and its use in the production of ozone by the electrolysis of water is also provided.

A water purification system provides clean water for the consumption by livestock by using a continuously recirculating water loop. A circulating pump moves the water within the water loop in a flow direction. A particle filter system is fluidically connected in series and removes dissolved solids or particulates within the water. An ozone purification system and/or with the addition of other antimicrobial or purification agents is fluidically connected in parallel to a portion of the continuously recirculating feedback monitored and control water loop. The ozone purification system is disposed downstream of the particle filter system in relation to the flow direction. A feeding station is connected in series with the continuously recirculating water loop disposed downstream of the ozone purification system in relation to the flow direction. An alkaline water apparatus is disposed upstream of the ozone purification unit, connected either before or in parallel to the ozone purification system.

An electrochemical membrane module for selectively removing pollutants and a preparation method thereof are provided. A Ti/SnO.sub.2Sb substrate electrode is coated with a MI-TiO.sub.2 sol-gel by means of a dip-coating method, and then sintered to obtain a molecular imprinting type Ti/MI-TiO.sub.2/SnO.sub.2Sb coated electrode; the coated electrode is adhered to a ceramic micro-filtration membrane using epoxy resin glue to obtain a Ti/MI-TiO.sub.2/SnO.sub.2Sb MI-anodic conductive composite membrane; the MI-anodic conductive composite membrane is used as an anode, and a titanium mesh is used as a cathode, so that the electrochemical membrane module capable of selectively removing pollutants is obtained. The invention effectively combines an electrochemical micro-filtration membrane and a molecular imprinting technique. When the electrochemical membrane module is used, suspended particles and refractory organics in the sewage are removed, and a highly selective removal of certain refractory pollutants can be achieved.

A dishwashing method in which water having an oxidizing and disinfecting action is provided in a dishwasher and used as dishwashing water or added to a dishwashing water, wherein, to provide the water, a) a stream of untreated water is fed into a reverse osmosis device and separated into a concentrate stream and a permeate stream, b) ozone is produced by an ozone generator, and c) the ozone is introduced into the permeate stream emerging from the reverse osmosis device, wherein the reverse osmosis controls ozone production in that the ozone generator is configured such that ozone is only produced and mixed with the permeate stream when the reverse osmosis device is in operation.

A water treatment system includes: a water treatment device; a feed-water pump that feeds water to be treated to the water treatment device; an ozone generator that generates ozone-containing gas containing ozone gas and oxygen gas; and a direct-current power supply that supplies direct-current power. The water treatment device includes: an ejector including an inlet-side wider-diameter part into which the water is introduced, a nozzle in communication with the inlet-side wider-diameter part and including a sidewall including an inlet opening into which the ozone-containing gas is introduced, and an outlet-side wider-diameter part in communication with the nozzle, from which the water mixed with the ozone-containing gas is ejected; and an electrolyzer located downstream of the ejector and including an electrolysis-purpose electrode supplied with the direct-current power to electrolyze the ejected water mixed with the ozone-containing gas.

A method for removing ammonia nitrogen in an aqueous solution is provided in the present invention. The method includes performing an electrolysis reaction using an electrolysis device, such that the ammonia nitrogen is converted into nitrogen gas, nitrate or nitrite. The electrolysis device includes an anode including metal nickel, nickel hydroxide or nickel oxyhydroxide, and a cathode including metal copper. The method has high selectivity of converting the ammonia nitrogen into the nitrogen gas.