Abstract:
A liquid treatment unit includes: an inlet for supplying liquid; a flow passage tube connected to the inlet, the flow passage tube defining a circulation flow passage along which the liquid supplied from the inlet circulates; a plasma generator generates plasma in the liquid in at least a partial area of the flow passage tube; a distributor, provided midway in the flow passage tube, for distributing a portion of liquid from the liquid flowing through the flow passage tube; and an outlet, connected to the distributor, for ejecting the portion of liquid from the flow passage tube.
Abstract:
A plasma generation device includes: a pair of electrodes that cause plasma to be generated in atmospheric pressure by a voltage being applied between the pair of electrodes; and a power source that includes a step-up transformer that has a coupling coefficient of 0.9 or greater and 0.9999 or less and generates the voltage.
Abstract:
A liquid treatment apparatus includes a dielectric tube through which a liquid flows, a first electrode, at least one end of which is disposed in the dielectric tube, a second electrode, at least one end of which is disposed in the dielectric tube, and a power supply for applying a voltage between the first electrode and the second electrode, wherein the dielectric tube has a protrusion projecting outwardly from an inside of the dielectric tube, an inner wall face of the protrusion facing the first electrode.
Abstract:
A liquid treatment apparatus for treating water to be treated, according to the present disclosure, includes a treatment tank, a dielectric partition wall dividing inside of the treatment tank into a first space in which the water to be treated is injected, and a second space in which an electrolytic solution is filled, a first electrode at least part of which is arranged in the first space of the treatment tank, a second electrode at least part of which is arranged in the second space of the treatment tank, and a power supply that applies a high-frequency AC voltage between the first electrode and the second electrode.
Abstract:
The method includes: preparing a plasma-treated liquid having a pH of 6 or more and 9 or less, the plasma-treated liquid being a liquid that has been treated with plasma generated in or near the liquid; and changing the pH of the plasma-treated liquid to less than 6 or to higher than 9.
Abstract:
The method includes: preparing a liquid having a pH of 9 or more; and generating plasma in or near the liquid to generate a plasma-treated liquid having a pH of 9 or more.
Abstract:
A plasma generation apparatus includes a flow path tube through which a liquid flows and which includes a concave portion and/or a convex portion on an internal wall surface thereof, a liquid feed device, a first electrode, a second electrode, a power source, and a control circuit which controls the liquid feed device and the power source. The concave portion and/or the convex portion causes, when the liquid flows therethrough, a pressure difference to be generated between at least part of the inside of the flow path tube and the external space, allowing a gas to be introduced into the liquid from the external space through a gas introduction path. The power source applies a predetermined voltage between the first electrode and the second electrode in a state in which a bubble containing the gas is generated in the liquid.
Abstract:
A liquid treatment apparatus according to an aspect of the present disclosure comprises a reactor and a plasma generator. The reactor includes an inner wall, a first space, and a second space. Each of the first space and a second space is capable of containing a liquid. The liquid is suppressed to move between the first space and the second space. The inner wall allows ions or electrons to move between the first space and the second space. The plasma generator includes a first electrode at least partially located in the first space, a second electrode at least partially located in the second space, and a power supply that applies AC or pulse voltage between the first electrode and the second electrode. The plasma generator produces plasma in the liquid.
Abstract:
A liquid treatment apparatus includes a dielectric tube through which water to be treated flows, a first electrode at least a part of which is disposed in the dielectric tube, a second electrode at least a part of which is disposed in the dielectric tube at a position upstream of the first electrode, a gas supplier operative to generate a bubble by supplying a gas into the water to be treated, and a power supply operative to apply a voltage between the first electrode and the second electrode in a state in which the bubble covers a conductor-exposed portion of the first electrode.
Abstract:
A liquid treatment apparatus according to the present disclosure includes a dielectric tube that defines a channel through which water to be treated flows, the channel being split upstream of the dielectric tube into a first channel and a second channel, the first channel and the second channel being merged with each other downstream of the dielectric tube, a first electrode at least partially disposed within the first channel, a second electrode at least partially disposed within the first channel, a first gas-supply unit that supplies gas to form a gas bubble into water to be treated that flows through the first channel, and a first power-supply that applies a voltage between the first electrode and the second electrode.