A method for electrochemically purifying water which comprises transporting a flow of water to be purified through a bed of metallic particles confined in a reactor and subjected to electrical voltage, the metal of the particles being electrochemically dissolved into the water in order to promote chemical reactions which facilitate the purification of the water and consequently said particles being consumed, the method comprising monitoring the consumption of said particles in the reactor without draining the reactor of water to be purified; and introducing new particles into the reactor if the consumption of particles reaches a predetermined reference threshold value, it being possible to monitor the consumption of the particles by monitoring the mass of the particles in the reactor, preferably by weighing the reactor and the content thereof.

The present invention provides a set of ozone water manufacturing device which can greatly reduce an unpleasant smell of ozone gas when ozone water is used for sterilizing hands and feet, and can save power consumption of a pump which operates for preventing stagnation of a water stream in an electrolytic bath. The ozone water manufacturing device includes an electrolytic bath and a mixer which atomizes air bubbles of the ozone gas in the ozone water flowing out of the electrolytic bath. Each of the electrode assemblies in an electrode unit within the electrolytic bath is inclined at the predetermined same angle in a vertical direction. The mixer includes a mixing case bottom and a mixing case main body. A vortex flow generating plate generates a violent water stream from the water stream within the mixing case main body.

A water treatment apparatus capable of sterilizing a storage tank and a sterilizing and cleansing method thereof are disclosed. The water treatment apparatus includes: a filter unit purifying raw water; a storage tank connected to the filter unit and storing purified water which has been filtered through the filter unit; an electrolytic sterilizer installed between the filter unit and the storage tank, electrolyzing only purified water which has been filtered through at least a portion of the filter unit to generate sterilization water, and supplying the sterilization water to the storage tank; a drain unit connected to the storage tank and discharging water accommodated in the storage tank; and a control unit controlling a water purification mode of the filter unit and a sterilization mode through the electrolytic sterilizer and the drain unit.

An electrochemical system and method are disclosed for On Site Generation (OSG) of oxidants, such as free available chlorine, mixed oxidants and persulfate. Operation at high current density, using at least a diamond anode, provides for higher current efficiency, extended lifetime operation, and improved cost efficiency. High current density operation, in either a single pass or recycle mode, provides for rapid generation of oxidants, with high current efficiency, which potentially allows for more compact systems. Beneficially, operation in reverse polarity for a short cleaning cycle manages scaling, provides for improved efficiency and electrode lifetime and allows for use of impure feedstocks without requiring water softeners. Systems have application for generation of chlorine or other oxidants, including mixed oxidants providing high disinfection rate per unit of oxidant, e.g. for water treatment to remove microorganisms or for degradation of organics in industrial waste water.

Electrolytically treating water through influent inlet arrangements for cavitation and one or more pairs of electrodes. The electrodes can provide continuous anodic and cathodic operation for treating water. The pressurized influent premixed with oxidant gas can be pumped into the reactor vessel through the mixing nozzles arranged radially along the circumference. The polarity of the current to the electrode can be periodically reversed at a set interval. An electro-catalytic paddle electrode can be used for the treatment of flowback and produced water. The paddle electrode can consists of alternate pentagonal flat plate electrodes separated by adjustable variable distance Teflon spacers. The paddle electrode is provided with a chemical coating capable of switching/reversing the polarity of anodes and cathodes at ultra high frequencies under very high current flowing conditions thus making it more efficient, stable and durable under demanding field conditions.

A system and method for delivering silver ion biocide is described herein. The systems described relate to passing water from a water system through a silver ion release module and optional high-concentration silver ion release module. The system includes an analyzer, detector, and/or controller for monitoring the concentration of silver ion and adjusting the flow path, flow rate, temperature and/or pH of the water in order to obtain the desired concentration of silver ion. The system optionally includes other metal ions released into a water system, the concentration of which may be used to automatically calibrate the described system and/or cause the system to take actions based on the measured concentration of silver ion or of the second metal ion.

Methods for using in situ cleaning systems which reduce water hardness and minimize chemical additives are provided. According to the methods and systems, the methods of using may comprise providing feed water to an in situ cleaning system including water treatment components, oxidizing agent generating components and/or alkalinity generating components, contacting one or more articles with a use solution generated by the in situ cleaning system, and washing the one or more articles in a washing system. In addition to the methods of using, the systems for in situ cleaning are provided.

A device for preparing washing water, belonging to the technical field of electro-chemical and membrane filtration water treatment. The device comprises a water container which is respectively provided with a water inlet and a water outlet; at least one pair of a cathode and an anode are arranged within the water container; a water-permeable porous membrane is clamped between the coupled cathode and anode with no gaps, and the area of the inside of the water-permeable porous membrane opposite the cathode or the anode is smaller than the area of the inside of the cathode or the anode opposite the water-permeable porous membrane. The device can generate washing water which contains a large a number of ultra-micro bubbles and strong oxidation factors and has excellent reducibility.

An aquaculture system is provided. The aquaculture system includes a cultivation pond, a water circulation unit, a water quality detector, and a water processing module. The cultivation pond for storing the cultivation water has a recirculation inlet and recirculation outlet. The water circulation unit is in fluid communication with the cultivation pond to allow the cultivation water in the cultivation pond to circulate through the water circulation unit. The water quality detector is used to detect the quality of the water to obtain water quality information. The water processing module includes an electrolytic gas generator and a control unit to improve the quality of water. The control unit receives the water quality information and adjusts the applied voltage on the electrolytic gas generator according to the water quality information to control the gas species and a ratio of the gases generated by the electrolytic gas generator.

The present invention relates to an apparatus for the production of ozone from water comprising at least one cell, consisting of an anode, a cathode and an interposed cation-conducting membrane, wherein the membrane conductively connects the anode and the cathode while forming flow channels for water that are separated from one another as anode and cathode chambers and wherein the flow channels are configured to allow for the recirculation of the water flow within the chambers. The present invention further relates to an electrochemical method and apparatus for producing ozone or dissolved ozone in water in high concentrations by mean of recirculation of water between at least one chamber and at least one water tank.