A fluid sterilization device includes: a processing flow passage in which a fluid subject to sterilization flows; a window member provided between a light source for irradiating the fluid in the processing flow passage with ultraviolet light and the processing flow passage, the window member including an incidence surface on which the ultraviolet light from the light source is incident and an exit surface from which the ultraviolet light exits toward the processing flow passage; and a heating body provided to be in contact with the incidence surface and adapted to heat the window member.

The present invention provides a method for water disinfection by exposing water, optionally simultaneously, to a combination of at least two ultraviolet (UV) irradiation sources, wherein at least one of said UV irradiation sources emits light at a wavelength of between 250 nm and 280 nm, and at least one of said UV irradiation sources emits light at a wavelength of between 285 nm and 310 nm; and an apparatus for carrying out said method.

A sterilization device includes: a treatment chamber with a discharge valve provided on a downstream side of the treatment chamber; a light source that irradiates a fluid stored temporarily in the treatment chamber with ultraviolet light; and a heat exchange chamber connected to an upstream side of the treatment chamber via a gate valve. The heat exchange chamber is thermally connected to the light source. The sterilization device may further include a heat pipe that thermally connects the light source and the heat exchange chamber. The heat pipe may be provided to extend vertically upward from the light source toward the heat exchange chamber.

A small, hands free, portable, rechargeable, waterproof, UV-C light emitting disinfection device. The disinfection device has a durable outer housing that holds an array of externally facing Ultraviolet C spectrum (UV-C) Light Emitting (LEDs) that emit light within the germicidal range of the Ultraviolet C spectrum or between the wavelength() range of 200 nm to 280 nm. The disinfection unit can be deployed in a water bottle, backpack bladder, water jug, or any suitable container to disinfect water or other liquids.

This invention is directed to a method, system and apparatus for the treatment fluids. An apparatus for the treatment of a fluid comprises a fluid chamber and at least one ultraviolet light unit arranged at a periphery of the fluid chamber. The at least one ultraviolet light unit comprises at least one ultraviolet light emitting diode and an ultraviolet light directing element. The ultraviolet light directing element is configured to collimate at least a portion of the light emitted from the at least one ultraviolet light emitting diode in use such that the ultraviolet light rays emitted from each ultraviolet light unit are parallel in a first plane. Also described is a method for the cooling a light emitting diode in a fluid treatment system.

An atmospheric water generation system includes an atmospheric water generator (AWG) having a holding tank using first ultraviolet (UV) light for disinfecting water in the holding tank. A pump for transporting the water from the holding tank to a multi-stage water filter wherein such water filter comprises in-seriatim; a sediment filter, at least one carbon block filter, a granular activated carbon filter, a second UV light and a re-mineralization filter.

A fluid treatment device includes a pipe including an inlet, an outlet, an internal space through which a fluid moves and including a light source part disposed in the internal space and providing a light to the fluid. The light source part includes at least one light source unit having a substrate and a plurality of light sources disposed on the substrate and emitting the light. A ratio of a first distance between two light sources adjacent to each other to a second distance between each light source and an inner circumferential surface of the pipe is 1:1.25 or less when viewed in a longitudinal-section.

Disinfection apparatus having submersible disinfection devices for disinfecting fluid. The disinfection apparatus includes: a pipe having one or more linear segments; one or more disinfection devices installed on the pipe, each of the one or more disinfection devices generating light for disinfecting fluid in a linear segment of the pipe; and a controller electrically coupled to the one or more disinfection devices and controlling the one or more disinfection devices. Another embodiment of the disinfecting apparatus includes; side and bottom walls and a lid that define an enclosed chamber; an inlet and outlet for communicating fluid to the enclosed chamber; a plurality of disinfection devices disposed on the side wall, each of the plurality of disinfection devices generating light for disinfecting fluid inside the enclosed chamber; and a controller electrically coupled to the plurality of disinfection devices and controlling the plurality of disinfection devices.

One aspect described herein is a fluid treatment apparatus. The apparatus may comprise a body extending along a flow path between a first end and a second end opposite of the first end along the flow path, the first end comprising an inlet along the flow path, the second end comprising an outlet along the flow path; a flow channel extending inside the body along the flow path to direct a fluid from the inlet to the outlet; and a solid-state radiation source mountable in a cavity of the flow channel to emit radiation into the flow channel along the flow path, the solid-state radiation source comprising a thermally conductive portion positioned to be contacted by the fluid when the fluid is flowing from the inlet to the outlet and the solid-state radiation source is mounted in the cavity. Related apparatus, devices, and methods also are described.

A portable water bottle includes a water bottle body having water stored therein; and a sterilizing module for irradiating the inside of the water bottle body with sterilizing ultraviolet rays. The sterilizing module further includes a housing having an ultraviolet outlet through which the sterilizing ultraviolet rays pass; a light source module for emitting the sterilizing ultraviolet rays; and a power storage member for supplying power to the light source module.