A method and apparatus is described that uses a device that presents a surface of a dielectric material to a flowing or circulating fluid that results in charge being created at a boundary layer of the dielectric where it contacts the fluid by ion exchange and charging of compounds, for example insoluble dielectric particles such as colloids, and using at least one control impedance to control an impressed current in the fluid caused by the fluid flowing through the device and to cause suspended particles in the fluid to be charged, whereby the charge of the suspended particles is then neutralised causing coagulation of the particles as suspended insoluble particles.

A rod-shaped electrolysis device having an electrically conductive housing, wherein in the housing, a receiving space for at least one voltage source and an electronic control unit is embodied which is separated from an electrode space formed in the housing in a liquid-tight manner, and wherein an electrode extends within the electrode space, and wherein in the housing, at least one opening is formed in the region of the electrode space. The electrolysis device is characterized in that the housing comprises a receiving socket which is electrically connected both with the housing and the electrode. Via the receiving socket, the residual voltage of a voltage source and also the charging of a rechargeable voltage source may be measured. Furthermore, a data memory may be read out via the receiving socket.

The present disclosure provides a liquid treatment device and a liquid treatment method each capable of efficiently generating plasma and treating a liquid in a short time period. A liquid treatment device according to the present disclosure includes a first electrode, a second electrode disposed in a liquid, an insulator disposed surrounding the first electrode through a space, the insulator having an opening portion at a position in contact with the liquid, and a power supply that applies an AC voltage or a pulse voltage between the first electrode and the second electrode.

An electrolyzed water-generating apparatus (1) is provided with: an electrolysis tank (D) equipped therein with a first electrode chamber (Da) with a cathode (6a), a second electrode chamber (Db) with an anode (6b), and a septum (Sp) for partitioning the first electrode chamber (Da) from the second electrode chamber (Db); a first inlet water path (4a), which is connected to the first electrode chamber (Da) and is for supplying raw water to the first electrode chamber (Da) from the outside; a first extraction water path (7a), which is connected to the first electrode chamber (Da) and is for extracting electrolyzed hydrogen water generated in the first electrode chamber (Da) by electrolysis to the outside; and an electric charge-adjusting device (10), which is connected to the electrolysis tank (D) and is for adjusting the electric charge applied on the electrolyzed hydrogen water when performing the electrolysis. The electric charge-adjusting device (10) is characterized in adjusting the electric charge per unit volume of electrolyzed hydrogen water taken from the device by controlling the electrolytic current or electrolytic voltage.

The present disclosure relates generally to oxidation of ammonia using electrochemistry. Methods and systems may include at least one sensor to measure the concentration of ammonia in the effluent and/or the concentration of chlorine gas in the effluent. Methods and systems may also include at least one controller in communication with the sensor and/or the anode to reduce the current density of the anode generating the chlorine, and/or to change the flow rate of the ammonia containing water entering the reactor.

Methods and systems for in situ electrochemical treatment of aqueous solutions used in agricultural systems, community systems and industrial systems. In aspects, is an in situ electrochemical method for the treatment of fertigation water, comprising: flowing the fertigation water through an electrochemical cell comprising at least one anode and at least one complementary cathode while simultaneously adjusting one or more of current density, flow rate and pH, wherein said flowing fertigation water contacts the anode and cathode causing one or more of: degradation of a recalcitrant organic contaminant, mineralization and solubilization of an organic, forming a disinfection agent against a pathogen, and maintaining nutrient levels in said fertigation water; and collecting treated effluent.

A method of operating an electrochemical cell including introducing an aqueous solution into the electrochemical cell, applying a current across an anode and a cathode to produce a product, monitoring the voltage, dissolved hydrogen, or a condition of the aqueous solution, and reversing polarity of the anode and the cathode responsive to one of the measured parameters is disclosed. An electrochemical system including an electrochemical cell including an anode and a cathode, a source of an aqueous solution having an outlet fluidly connectable to the electrochemical cell, a sensor for measuring a parameter, and a controller configured to cause the anode and the cathode to reverse polarity responsive to the parameter measurement is disclosed. Methods of suppressing accumulation of hydrogen gas within the electrochemical cell are also disclosed. Methods of facilitating operation of an electrochemical cell are also disclosed.

A water electrolysis system includes a water electrolytic stack, a water reservoir connected to the water electrolytic stack to supply water to the water electrolytic stack, a water circulation pump supplying the water in the water reservoir to the electrolytic stack; and a control unit configured to, during an operation stoppage of the electrolysis system, control the driving of the water circulation pump to convert the water in the electrolytic stack from an acidic condition to a neutral condition and to regulate a unit cell voltage of the electrolytic stack to a voltage such that an electrolysis reaction does not occur and a chemical state of an anode catalyst is stably maintained.

A monitored inline hard water processing assembly for conditioning hard water includes a cannister, which is cathodic, a disc, and a rod, which is anodic. The disc is removably couplable to a top of the cannister. The disc has a pair of channels positioned therethrough, each of which is in fluidic communication with an interior space defined by the cannister. The rod is removably couplable to the disc so that the rod is electrically insulated from the disc and extends into the interior space. A monitoring unit, which is electrically coupled to the cannister and the rod, is operationally couplable to a source of electrical current to provide a flow of direct current through the rod, the cannister, and water flowing therethrough. The monitoring unit comprises an indicator, which can indicate at least two resistance states of the rod.

The present invention relates to an apparatus for generating chlorine disinfectant that arranges, a salt water supply part, a hypochlorite generation part, a control part.