Time until a conductivity meter is ready to measure a conductivity after an electric decationizing apparatus starts is shortened.

Water to be treated that contains cations and anions is supplied to the electric decationizing apparatus while applying a first voltage to the electric decationizing apparatus, and decationized water is generated. Next, the decationized water that is generated by the electric decationizing apparatus is supplied to the conductivity meter in order to measure conductivity of the decationized water. Before the first voltage is applied to the electric decationizing apparatus and before the conductivity meter begins measuring the conductivity of the decationized water, a second voltage that is lower than the first voltage is applied to the electric decationizing apparatus in a state in which the electric decationizing apparatus is charged with water to be treated.

The present invention relates to a power control apparatus and method for controlling alternating current power at a ratio set according to the concentration and the water quantity of wastewater, and converting the controlled alternating current power into direct current power so as to treat wastewater. A power control apparatus comprises: a power supply unit for outputting alternating current power; a control unit for setting a fixed cycle and a varying cycle on the basis of at least one of the concentration and the water quantity of wastewater so as to output a control signal; a switch unit for controlling the alternating current power output from the power supply unit in the fixed cycle and the varying cycle on the basis of the control signal; and a rectification unit for rectifying the alternating current power controlled by the switch unit.

Radionuclides and other unwanted material in a liquid may be treated, removed or reduced through the use of electromagnetic fields applied to the liquid by electrodes that also function as co-precipitators by leaching polyvalent metal ions into the liquid.

An oxidant production apparatus comprises an electrochemical reactant reservoir, an electrolysis compartment, a porous first electrode and a second electrode. The porous first electrode defines a boundary between the reservoir and the electrolysis compartment and is configured to allow an electrochemical reactant to pass from the reservoir, through the first electrode and into the electrolysis compartment. The second electrode disposed at least substantially in the electrolysis compartment and spaced apart from the first electrode. The apparatus is configured to produce an oxidant in an electrochemical reaction when a voltage is applied across the first and second electrodes and a current is passed through the first and second electrodes and an electrolyte disposed in the electrolysis compartment.

The invention relates to a water filtration with a process optimization method, which employ cartridges with conventional electrolytic cells that have electrolytic cells, modified with automated control systems for the purpose of manipulating, monitoring and performing maintenance strategies in a single device, either in mobile containers or in swimming pools, gutters, etc., in such a way that: the purification process of the liquid, preferably water, is increased, the speed of its processing is increased, a process that is conventionally performed manual way is automated; in addition to optimizing the materials used in the purification, the process minimizes the risks of infiltration of impurities in the organism by immersion in treated waters with high pollutant levels; finally the process decreases the formation of tartar in the containers.

A capture device for capturing a target gas from a gas flow is disclosed that can be continuously used without requiring consumption of target gas binding salts. To this end, the device is arranged to generate separate acidic and alkaline streams of fluid by electrolyzing water, binding the target gas to the hydroxide ions in the alkaline fluid stream or the hydronium ions in the acidic stream, and recombining the generated streams to release the bound target gas and regenerating part of the electrolyzed water for further electrolysis. Such a capture device may for instance be used in a gas purification system, e.g. an air purification system for controlling target gas levels in a confined space such as a vehicle cabin, domestic dwelling or office space, a target gas generation system or a target gas enrichment system, e.g. for creating target gas-rich air for horticultural purposes. A method for capturing target gas from a gas flow and optionally utilizing the captured target gas is also disclosed.

The present disclosure relates to a micro-mini pulsed electric field (PEF) device for point-of-use disinfection of drinking water. The pulsed electric field device comprises micro-engineered electrodes and a low-voltage pulsed electric field generator circuit. A pulsed electric field is generated across a micro-gap between the electrodes to achieve disinfection of drinking water.

The invention relates to a method and system for treating water within a water system to control one or more of scaling, corrosion, bacteria and algae. In particular, the invention relates to methods and systems for applying a superimposed time-varying frequency electromagnetic wave comprising both AC and DC components in a pulsating manner to water within a water system, such as, for example, cooling water systems, cooling towers, boiler systems and water storage systems. The method and the system of the invention significantly reduce capital costs and require very low energy, they avoid environmentally unfriendly final products, and are able to result in various treatment effects simultaneously.

A water treatment device, preferably a device used for treating waters intended for a domestic and/or industrial use, includes a filtration apparatus and an ionization apparatus accommodated together in a container.

The water treatment system, particularly pre-filtration unit of the water treatment system, comprising at least one chlorine sensor device, includes a salt-water treatment device which is connected to the chlorine sensor device, an electrolysis cell being disposed in the associated line, and thereafter a pump and a release valve.