A biocidal fluid purification cap (2) for a fluid container (1), preferably one storing purified water for use in laboratory environments and especially purified water for cell culture and water for molecular biology. The purification cap (2) includes a cap body (3) including an engagement feature (20) for removably attaching the cap body (3) to a mating engagement feature on a spout of the fluid container (1) to hermetically close a spout opening, at least one LED (7a) adapted to emit light in the UV-C range, electronic circuitry (15) for driving the LED(s) (7a), and a power supply for the electronic circuitry (15). The LED(s) (7a) is/are arranged in said cap body (3) so as to be separated from the environment by an UV-transparent window (6) provided in the cap body (3) such that light emitted from said LED(s) (7a) enters the opening of the spout when the cap (2) is attached to the spout of the container (1).

In one aspect, a sterilization apparatus is provided to include a flow channel body comprising an inflow unit configured to provide an inflow channel through which water flows in one direction, a discharge unit configured to provide a discharge channel through which water is discharged, and a bypass channel unit configured to provide a bypass channel through which water bypasses in a different direction from the direction of the water flowing in the inflow unit; a mounting unit formed on the flow channel body and configured to provide an installation space connected to the bypass channel, a UV light emitting unit disposed in the installation space and configured to emit UV light towards the bypass channel; and a holder coupled to the mounting unit and securing the UV light emitting unit inside the mounting unit.

A solution for disinfecting a fluid, colloid, mixture, and/or the like using ultraviolet radiation is provided. An ultraviolet transparent enclosure can include an inlet and an outlet for a flow of media to be disinfected. The ultraviolet transparent enclosure includes a material that is configured to prevent biofouling within the ultraviolet transparent enclosure. A set of ultraviolet radiation sources are located adjacent to the ultraviolet transparent enclosure and are configured to generate ultraviolet radiation towards the ultraviolet transparent enclosure.

A pond filter includes a housing having a fluid inlet and a fluid outlet, and a UV filter chamber disposed in a fluid flow path between the inlet and the outlet. The UV filter chamber includes a UV lamp arranged for illuminating water flowing therethrough. The UV filter chamber has a fluid channel through the UV filter chamber being defined between a tube and a shroud portion of the chamber. The chamber has at least one sealing arrangement including a sealing assembly for mounting the tube to the shroud portion and sealing means including an O-ring seal which is retained between a nut and a bushing of the assembly. The seal is urged by a nut and bushing into sealing contact with the tube as the nut is engaged onto the shroud portion.

A method for inducing continuous separation of copper ions from copper using UV-light source, comprising the following steps: (1) cutting apiece of copper into wires or slices for immersing into a vessel containing water; switching on a stirrer for stirring the water continuously and keeping the copper being immersed in the water; (2) turning on the UV-light source for irradiating the copper and the water continuously; appearing a large amount of white precipitate in the water; (3) filtering the solution; detecting the filtered solution, a certain concentration copper ions in the filtered solution are found; adding hydrochloric acid by drops into the unfiltered original solution, the white precipitate is dissolved and copper ions are detected. The invention makes the copper separate out copper ions continuously and can be applied to copper ion disinfection for swimming-pool water, scenic water and cooling water, etc.

A fountain is provided. The fountain includes: a drape; a catch basin located below the drape and oriented to catch a fluid flowing at least one of over and through the drape; a conduit fluidly connected to the catch basin forming a circuit to return the fluid in the catch basin to flow at least one of over and through the drape; a pump fluidly connected to the circuit and configured to pump the fluid through the conduit; and at least one of the drape, catch basin, conduit includes surface oriented to contact the fluid and the surface includes at least one of copper and silver.

A fountain is provided. The fountain includes: a drape; a catch basin located below the drape and oriented to catch a fluid flowing at least one of over and through the drape; a conduit fluidly connected to the catch basin forming a circuit to return the fluid in the catch basin to flow at least one of over and through the drape; a pump fluidly connected to the circuit and configured to pump the fluid through the conduit; and at least one of the drape, catch basin, conduit includes surface oriented to contact the fluid and the surface includes at least one of copper and silver.

A fluid sterilization device according to an embodiment includes: a cylindrical part; a light source, emitting ultraviolet rays to a fluid flowing through an inside of the cylindrical part via a window; a water turbine, provided inside the cylindrical part; and a removal part, provided at the water turbine. An end part of the removal part is brought into contact with a surface of the window on a side opposite to a side of the light source.

A biocidal fluid purification cap (2) for a fluid container (1), preferably one storing purified water for use in laboratory environments and especially purified water for cell culture and water for molecular biology. The purification cap (2) includes a cap body (3) including an engagement feature (20) for removably attaching the cap body (3) to a mating engagement feature on a spout of the fluid container (1) to hermetically close a spout opening, at least one LED (7a) adapted to emit light in the UV-C range, electronic circuitry (15) for driving the LED(s) (7a), and a power supply for the electronic circuitry (15). The LED(s) (7a) is/are arranged in said cap body (3) so as to be separated from the environment by an UV-transparent window (6) provided in the cap body (3) such that light emitted from said LED(s) (7a) enters the opening of the spout when the cap (2) is attached to the spout of the container (1).

Disclosed is an ultraviolet light disinfection apparatus mounted on a water pipe that is connected to a massage pool. The ultraviolet light disinfection apparatus comprises: a housing mounted on the water pipe and in closed connection with the water pipe; a PCB disposed inside the housing and provided with a UVC-LED light source and a wire, the wire protruding from the housing to connect to the power source; an ultraviolet light-transmitting body disposed on the housing, such that ultraviolet light at UVC wavelength range produced by the UVC-LED light source can enter into water body inside the water pipe through the ultraviolet-transmitting body. The present invention can disinfect the water body inside the water pipe. Also provided are a control box and a massage pool.