A nitrous acid generator includes a treatment vessel having an inner space being capable of holding a liquid; a gas supplier supplying a gas to the inner space such that the gas forms a bubble in the liquid, the gas containing oxygen and nitrogen; a plasma generator including a first electrode, a second electrode, and a power supply for applying a voltage therebetween, the plasma generator generating plasma in the bubble, the plasma producing nitrogen oxide including nitrogen monoxide and nitrogen dioxide; a gas-liquid contact member to which the nitrogen oxide and the liquid are introduced from the treatment vessel, the gas-liquid contact member causing the nitrogen oxide to be dissolved in the liquid while the nitrogen oxide and the liquid pass through the gas-liquid contact member; and a cooler cooling the nitrogen oxide and the liquid while the nitrogen oxide and the liquid pass through the gas-liquid contact member.

A device for removing toxic or harmful materials from an inside sealed by a sealed-type flexible enclosing cover, wherein the contaminated surface of the subject of decontamination is covered with the enclosing cover and a reactive gas is introduced thereto, and particularly to a decontamination and sterilization device, wherein a plasma generator is fixed to a enclosing cover and a plasma gas containing an active radical generated from the plasma generator is introduced to the inside sealed by the enclosing cover together with a reactive gas having a hydroxyl group such as hydrogen peroxide (H.sub.2O.sub.2), water (H.sub.2O), or an alcohol (C.sub.nH.sub.2n+1OH) to thus increase the production of a reactive radical, whereby the plasma and the reactive gas are intensively applied to the inside sealed by the enclosing cover, thus increasing the contact with contaminants and realizing more efficient decontamination.

A device for removing toxic or harmful materials from an inside sealed by a sealed-type flexible enclosing cover, wherein the contaminated surface of the subject of decontamination is covered with the enclosing cover and a reactive gas is introduced thereto, and particularly to a decontamination and sterilization device, wherein a plasma generator is fixed to a enclosing cover and a plasma gas containing an active radical generated from the plasma generator is introduced to the inside sealed by the enclosing cover together with a reactive gas having a hydroxyl group such as hydrogen peroxide (H.sub.2O.sub.2), water (H.sub.2O), or an alcohol (C.sub.nH.sub.2n+1OH) to thus increase the production of a reactive radical, whereby the plasma and the reactive gas are intensively applied to the inside sealed by the enclosing cover, thus increasing the contact with contaminants and realizing more efficient decontamination.

The present invention relates to a spark discharge generator. The spark discharge system of the present invention includes a plurality of columnar electrodes and a ground plate having a plurality of outlet holes at positions corresponding to the columnar electrodes. The use of the spark discharge generator enables the production of a three-dimensionally shaped nanostructure array on a large area in a uniform and rapid manner.

The invention relates to an apparatus for investigating electrocatalytic reactions comprising a container (3) having a stirrer (5), wherein the container (3) is internally lined with an electrically insulating coating or is manufactured from an electrically insulating material and the stirrer (5) has at least one stirrer shaft (17) provided with an electrically insulating coating or manufactured from an electrically insulating material and electrodes (9, 9a, 9b; 11, 11a, 11b) configured as exchangeable baskets (7; 7a; 7b) are positioned in the container (3).

To provide an apparatus and a method of producing fine particles capable of increasing evaporation efficiency of a material, increasing the production of fine particles and reducing costs by heating the inputted material by a gas heated by thermal plasma. A fine particle production apparatus includes a vacuum chamber, a material feeding device connected to the vacuum chamber and feeding material particles from a material feeding port into the vacuum chamber, electrodes arranged in the vacuum chamber for generating plasma and a collection device connected to the vacuum chamber and collecting fine particles, which produces the fine particles from the material by generating electric discharge inside the vacuum chamber, in which the collection device and the material feeding device are connected by piping, and a material heating and circulation device which heats the material by heat of a gas inside the chamber heated by the plasma through the piping is provided.

A system for performing treatment of a liquid by ionized gas comprises a laminar flow liquid gas plasma reactor. The plasma reactor includes electrodes, an upper and lower flow spreader, and a housing. The reactor uses gas to form a gas zone above the liquid where the gas is ionized directly above and in direct contact with the liquid. The ionized gas reacts with the liquid to form an effluent.

A method and generator for generation of hydrogen peroxide which operate on the principle of conveying air-liquid or vapor flow through a corona discharge zone in air. Such devices can be used for disinfection of air and of various objects for industrial and home uses.

A substance is treated using a device having: (a) a volute or cyclone head, (b) a throat connected to the volute or cyclone head, (c) a parabolic reflector connected to the throat, (d) a first wave energy source comprising a first electrode within the volute or cyclone head that extends through the outlet into the opening of the throat along the central axis, and a second electrode extending into the parabolic reflector and spaced apart and axially aligned with first electrode, and (e) a second wave energy source disposed inside the throat, embedded within the throat or disposed around the throat. The substance is directed to the inlet of the volute or cyclone head and irradiated with one or more wave energies produced by the first and second wave energy sources as the substance passes through the device.

The invention relates to a reactor comprising a moving bed of solid particles that move in the direction of gravitation, and to a method for heating a reactor that comprises a moving bed, for the purpose of pyrolysis reactions.