A module for preventing barnacle formation in a marine air-conditioning system. The module comprises: i) a housing; ii) a source of irradiating light disposed in the housing, the irradiating light suitable for killing or stunning barnacle larvae; iii) a circuit assembly disposed in the housing and configured to receive electrical power from an external power supply and to provide electrical power to the source of irradiating light; and iv) a transparent window disposed in the housing to permit the irradiating light to pass therethrough. The housing is adapted to be coupled to a water filter supplying raw water to the marine air-conditioning system such that the irradiating light is transmitted into the raw water in the water filter.

A disinfecting system includes a housing. An ultraviolet light (UV) source is secured to the housing and configured to emit UV light for disinfection of a target. A processor is secured to the housing in communication with the UV light source. The processor is configured to activate the UV light source for a selected amount of time suitable for disinfection of the target.

A solution for treating a fluid, such as water, is provided. An ultraviolet transparency of a fluid can be determined before or as the fluid enters a disinfection chamber. In the disinfection chamber, the fluid can be irradiated by ultraviolet radiation to harm microorganisms that may be present in the fluid. One or more attributes of the disinfection chamber, fluid flow, and/or ultraviolet radiation can be adjusted based on the transparency to provide more efficient irradiation and/or higher disinfection rates. In addition, various attributes of the disinfection chamber, such as the position of the inlet(s) and outlet(s), the shape of the disinfection chamber, and other attributes of the disinfection chamber can be utilized to create a turbulent flow of the fluid within the disinfection chamber to promote mixing and improve uniform ultraviolet exposure.

Internally activated energy distribution guides for use in clear to turbid liquids or air have been developed. An external energy source is transferred to a matrix or single fiber of a side emitting fiber or guide to internally activate a promoter or catalyst on the exterior of the fiber or guide to thereby dissociate target molecules passing by or along the fiber's or guide's surface by a Precise Energy Separation (PES) method. A number of different designs can be used, for example, in a mesh, louver system, or box. The method maximizes the interaction between the target molecules and the surface of the side emittinginternally activated distribution network. In a preferred embodiment, u-shaped fiber optics containing catalyst are positioned within tube through which the turbid liquid or air is passed, so that maximum cleavage of targeted bonds is obtained.

An ultraviolet light fluid treatment device that can enhance treatment effects is provided. The ultraviolet light fluid treatment device includes an inlet and an outlet of fluid; a flow channel connecting the inlet and the outlet and including a plurality of branch flow channels branching from the inlet, and a merged flow channel connected to a downstream side of each of the branch flow channels; a first light source configured to emit ultraviolet light to the merged flow channel; and a plurality of second light sources configured to emit the ultraviolet light to the plurality of respective branch flow channels.

A device that treats water with multiple wavelengths of light in order to modify the structure of the water. The device may have two light panels on two different sides of a transparent container that holds water to be treated. Each light panel may have light sources that emit three different wavelengths of light. Specific wavelength combinations have been found to produce the desired structural changes in water. Hydrogen and/or oxygen may be added to the water before or during treatment. Potential sources of hydrogen and oxygen may be an electrolysis unit attached to or integrated into the light treatment device, or a hydrogen bearing mineral that may be added to the water. Experiments that treat and then freeze the water demonstrate a novel structure via the formation of unusual crystalline forms in the frozen, treated water.

A disinfecting device including a conduit configured to carry a flowing liquid. The conduit has a first index of refraction. A sheath surrounds the conduit and has a second index of refraction. The second index of refraction is lower than the first index of refraction. The disinfecting device also includes a light source configured to produce disinfecting light and arranged to send the disinfecting light into the conduit.

A solution for treating a fluid, such as water, is provided. An ultraviolet transparency of a fluid can be determined before or as the fluid enters a disinfection chamber. In the disinfection chamber, the fluid can be irradiated by ultraviolet radiation to harm microorganisms that may be present in the fluid. One or more attributes of the disinfection chamber, fluid flow, and/or ultraviolet radiation can be adjusted based on the transparency to provide more efficient irradiation and/or higher disinfection rates. In addition, various attributes of the disinfection chamber, such as the position of the inlet(s) and outlet(s), the shape of the disinfection chamber, and other attributes of the disinfection chamber can be utilized to create a turbulent flow of the fluid within the disinfection chamber to promote mixing and improve uniform ultraviolet exposure.

A disinfecting system includes a housing. An ultraviolet light (UV) source is secured to the housing and configured to emit UV light for disinfection of a target. A processor is secured to the housing in communication with the UV light source. The processor is configured to activate the UV light source for a selected amount of time suitable for disinfection of the target.

A disinfecting system includes a housing. An ultraviolet light (UV) source is secured to the housing and configured to emit UV light for disinfection of a target. A processor is secured to the housing in communication with the UV light source. The processor is configured to activate the UV light source for a selected amount of time suitable for disinfection of the target.