A fluid treatment system includes a reactor chamber fluidly coupled with a fluid inlet and a fluid outlet. The reactor chamber is defined by one or more chamber walls. The system includes a UV LED, and a light pipe. The light pipe extends into the reactor chamber through at least one of the chamber walls. The light pipe has a proximal end disposed outside of the reactor chamber. The proximal end is coupled with the UV LED to transmit UV light into the reactor chamber through the light pipe. To that end, the light pipe also has a distal end, opposite the proximal end, that is disposed within an interior volume of the reactor chamber. The light pipe includes a central section disposed between the proximal end and the distal end. The central section is configured to transmit the UV light from UV LED to the distal end.

An apparatus for filtering and mineralizing a fluid. The apparatus includes an amount of contaminated fluid located in a reservoir and a cartridge that is located downstream from the reservoir and in fluid communication with it. A filter is in fluid communication with the reservoir and the cartridge. The contaminated fluid is pumped along a pathway from the reservoir to the cartridge so that the contaminated fluid moves through the filter to generate filtered fluid in the cartridge. A pre-determined amount of an additive is associated with the cartridge for adding to the filtered fluid to generate a final fluid with the amount of the additive material.

A disinfection system for treating water. In a specific example, the system treats water prior to its upload to an aircraft or other passenger transportation vehicle. One or more replaceable filters are positioned within a filter chamber housing in order to expose water flowing through the system to filtration treatment.

A water sanitization cap for covering a bottle is provided. The cap may include an ultraviolet-C (“UV-C”) light emitting diode (“LED”) housing and a shell. The shell may be adjacent to a portion of the housing. The cap may also include a waterproof compartment formed within the interior of the housing. The waterproof compartment may include one wall formed at least in part from a transparent material. The cap may include a UV-C LED. The UV-C LED may be fixed within the waterproof compartment, proximal to one end of the UV-C LED housing and oriented to shine light through the transparent material. The cap may include a sensor that when activated, applies a voltage to the UV-C LED to cause the UV-C LED to emit light. The cap may include a cartridge cage that can hold a cartridge. The cartridge cage may be removably attachable to an inner surface of the shell. The waterproof compartment wall may be positioned relative to the cartridge cage such that the UV-C LED, in use, treats water within the bottle before the water flows through the cartridge cage.

The present invention relates to a UV lamp having an axial dimension normal to a cross-section having a cross-sectional area with a ratio of the axial dimension to the cross-sectional area in the range of 0.1 cm/cm.sup.2 to 1000 cm/cm.sup.2. The UV lamp includes a first axial conductor separated from a second axial conductor by an electrically insulating material and a light emitting diode (LED) capable of providing light at a wavelength in the range of 100 nm to 400 nm, which LED is mounted to emit light from an outer surface. The invention also relates to a method of sterilising a surface using the UV lamp.

The present disclosure concerns module for disinfecting water by UV radiation, for example source or miming water to be disinfected for the purpose of serving as drinking water. In particular, the present disclosure provides a UV-LED radiation-based modules for disinfecting water before consumption, the modules include at least one removable lens for prolonging the service life of the module.

A device (20) for disinfecting a fluid, in particular water, has a reactor housing (15) with an inlet (19) for ingress and an outlet (9) for discharge of a fluid to be disinfected, wherein a reactor chamber (16) is formed in the reactor housing (15). The fluid to be disinfected flows through the reactor chamber (16) from the inlet (19) to the outlet (9) along a flow path (18). A UV irradiation device (21) with a plurality of UV LEDs (11) is provided, wherein the UV LEDs (11) are disposed on an elongated support element (7) and the support element (7) is configured to extend at least partially into the reactor housing (15) so that by means of the UV LEDs (11), UV light for disinfecting the fluid can irradiate the flow path in the reactor chamber. The support element (7) is releasably and exchangeably mounted in the reactor housing (15) and has a coolant passageway (5, 17) which extends through the support element (7) and through which a coolant can flow in order to cool the UV LEDs (11).

A fluid sterilization device includes a cylindrical body of a housing having a flow passage through which fluid flows in an axial direction, an inflow port through which the fluid flows into the cylindrical body, an outflow port on the outer circumference of the cylindrical body, a light source provided on an end section on an opposite side to the inflow port, and a quartz cap including a cylindrical section and a leading end section. The quartz cap transmits, collects, or scatters ultraviolet light. The cylindrical section of the quartz cap is fitted to an inner wall of the cylindrical body, and a boundary section of the quartz cap is disposed a position coinciding with an end surface of the outflow port on a side close to the first light source or at a position where the boundary section protrudes beyond the end surface.

A universal water purification system and method that can desalinate salt water or just filter fresh water. Preferably, the system is portable and relatively lightweight and provides for emergency or recreational safe power and water accessibility. The components of the system can be installed on an aluminum frame and preferably include one or more of a waterproof front control panel, four pre-filters, a reverse osmosis membrane or graphene filter, or electrical process of separating chloride ions from water, ultraviolet (UV) LED lamp, ultrasonic frequency generator, chlorinator or disinfecting gas infusion, a high pressure reverse osmosis (RO) pump, or other desalination process and a low pressure water supplying pump, an electro valve preferably with a manual override in case of power loss and can be activated based on the content of total dissolved solids of incoming water. The system may be removably inserted into a suitcase that can be carried by an individual, or housed in a frame with wheels.

A reactor that operates with ultraviolet light emitting diodes (UV-LEDs) to attain UV photoreactions or UV photo-initiated reaction in a fluid flow for various applications, including water purification. The UV-LED reactor is comprised of a conduit means for passing fluid flow, an ultraviolet light emitting diode (UV-LED), and a radiation-focusing element to focus the UV-LED radiation to the fluid in the longitudinal direction of the conduit. The UV-LED reactor may include photocatalysts or chemical oxidants, which are activated by UV emitted by UV-LEDs for photocatalytic and photo-initiated reactions.