Methods for electrochemically oxidizing organic compounds in aqueous solution. The methods include contacting an aqueous solution comprising organic compounds with a first anode and electrochemically oxidizing at least a portion of the organic compounds to provide a first aqueous solution comprising oxidation products; and contacting the first aqueous solution comprising oxidation products with a first cathode and electrochemically reducing at least a portion of the oxidation products to provide a first aqueous solution comprising reduced products and residual oxidizable organic compounds. The first aqueous solution can be further treated to electrochemically oxidize at least a portion of the residual oxidizable organic compounds to provide a second aqueous solution comprising oxidation products, and the second aqueous solution can be further treated to electrochemically reduce at least a portion of the oxidation products to provide a third aqueous solution comprising reduced products and residual oxidizable organic compounds. Systems for electrochemically oxidizing organic compounds and effectively carrying out the methods are also provided.

The present invention relates to a hybrid system for water treatment, desalination, and chemical production. The hybrid system of the present invention includes a photoanode, an anode chamber, an anion exchange membrane, a middle chamber, a cation exchange membrane, a cathode chamber, and a cathode. In the middle chamber, saltwater or seawater is desalinated by photoelectrochemical electrodialysis. Chloride ions are generated during the desalination, transferred to the anode chamber, and activated by the photoanode. In the anode chamber, wastewater is treated by the activated chloride ions. In the cathode chamber, at least one chemical species selected from the group consisting of water, oxygen, and carbon dioxide is reduced by electrons supplied from the photoanode.

A hydrogen water generator includes a body including a first outlet coupled to a first inlet for receiving supply water, and a second inlet coupled to a second outlet, the second outlet for discharging hydrogen water, a water tank assembly detachably attached to the body, the water tank assembly including a water tank and an electrode module coupled to the water tank, and the water tank including a third inlet and a third outlet. When the water tank assembly is attached to the body, the third inlet of the water tank couples to the first outlet of the body, and the third outlet of the water tank couples with the second inlet of the body.

The physical water treatment device, in particular in a flexible water inlet (1), comprises at least one pair of electrodes (2) for water galvanization and at least one means for inserting and fixing the electrodes (2). The means for inserting and fixing the electrodes (2) together with the electrodes (2) form an integral body (3), the resulting shape of which is adapted for the insertion into the flexible water inlet (1). The integral body (3) completely blocks the flexible water inlet (1) and is hollow so that the water flowing through the flexible inlet (1) flows through the electrodes (2) of the integral body (3). The electrodes (2) form a flow-through galvanization system in the integral body (3).

A filtration system for a pet water fountain is provided. The filtration system utilizes a pump placed within or along a watering bowl. The water filtration system also utilizes a multi-stage filtering device. In one aspect, the multi-stage filtering device includes a first filtering stage representing copper zinc alloy particles, and a second filtering stage representing granulated activated carbon particles. Each stage may constitute filtering material that is separated into an array of cells residing along a vertical frame or is separated into stages placed in series within a tubular cartridge. A method for filtering water in a pet fountain is also provided herein.

[Problem] To provide a production method for a natural-extract beverage which is coffee extraction or the like using electrolytically reduced water, wherein the oxidation-reduction potential of the extract is negative. [Solution] A method for producing a natural-extract beverage by making coffee or tea with electrolytically reduced hot water containing dissolved hydrogen molecules, comprising making coffee or tea that an oxidation-reduction potential of the extract is made to be 0 mV or less by at least one means that suppresses volatilization of dissolved molecular hydrogen, wherein the at least one means are selected from the group consisting of: means of using electrolytically reduced water obtained by electrolysis of heated source water, means of performing the extraction under high pressure in a sealed container, and means of adding to the electrolytically reduced water at least one dissolved-hydrogen stabilizing agent selected from polysaccharides and/or polyphenols.

The present disclosure relates to a refrigerator in which an internal volume is maximized and efficiency of a hydrogen water module is maximized. The present disclosure relates to a refrigerator with improved ease of use and improved serviceability by replacing a hydrogen water module without using a tool. The present disclosure relates to a refrigerator that can prevent hydrogen from remaining on an upper side inside a hydrogen water module and can also prevent an amount of hydrogen dissolved in hydrogen water from being reduced.

A process for treating sour water includes combining the sour water with an alkali or alkaline metal hydroxide to produce a sour water mixture, the sour water comprising sulfides, passing an electric current through the sour water mixture, where passing the electric current through the sour water mixture causes at least a portion of the sulfides to react to produce a treated sour water comprising sulfates and having a pH of 7.1 to 9.8, saturating the at least a portion of the sulfates in an aqueous sulfate solution, and separating at least a portion of saturated sulfates from a saturated aqueous sulfate solution.

The present disclosure describes methods and systems comprising hydrodynamic cavitation, microwave irradiation, and at least one of oxidative sonoelectrolysis and reductive sonoelectrolysis, providing feedstock purification of at least one of water, fluid and mineral. Contaminants, broken down and chemically degraded into smaller and more volatile substances by hydrodynamic cavitation are ultimately destroyed in the course of one or more sonoelectrolysis steps. In various embodiments, at least one of oxidative sonoelectrolysis and reductive sonoelectrolysis is irradiated with microwaves in order to heat the sonoplasma present within acoustic cavitation bubbles to temperatures sufficient to destroy contaminants therein.

The beauty device according to the present invention comprises by including a mist processing part generating sterilization water by electrolyzing water in a water tank and spraying the generated sterilization water in the form of mists, and a temperature stimulation processing part applying temperature stimulation to skin using a thermoelement. A more convenient and efficient skin care can be made possible because a mist spray function of hydrogen sterilization water and a temperature stimulation function can be simultaneously implemented using a single portable device. The temperature stimulation function can be simply implemented because temperature is controlled using a Peltier device.