Abstract: Aquaculture systems and methods are provided, as well as immunogenic compositions and methods of immunologically protecting bivalves against specified pathogens. Methods include inactivating specified pathogens using UV (ultraviolet) radiation, exposing invertebrates grown or to be grown in aquaculture to the specified UV-inactivated pathogens to enhance an immune reaction of the exposed invertebrates toward the specified pathogens, and growing the exposed invertebrates in aquaculture. For example, the methods were demonstrated to increase the immune response of oysters to ostreid herpesvirus 1 (OsHV-1) following their prior exposure to UV-inactivated OsHV-1.

Abstract: Some demonstrative embodiments of the invention include an illumination-based liquid disinfection device. The disinfection device may include, for example, a light transparent conduit to carry a flowing liquid to be disinfected, the conduit having an inlet to receive the liquid and an outlet to discharge the liquid, a substantially light transparent sleeve having external dimensions smaller than the internal dimensions of the conduit, the sleeve positioned within the conduit substantially perpendicular to the axis of symmetry of the conduit and a light source positioned within the sleeve.

Abstract: Some demonstrative embodiments of the invention include an illumination-based liquid disinfection device. The disinfection device may include, for example, a light transparent conduit to carry a flowing liquid to be disinfected, the conduit having an inlet to receive the liquid and an outlet to discharge the liquid, a substantially light transparent sleeve having external dimensions smaller than the internal dimensions of the conduit, the sleeve positioned within the conduit substantially perpendicular to the axis of symmetry of the conduit and a light source positioned within the sleeve.

Abstract: An ultraviolet (UV) liquid treatment apparatus is disclosed. The apparatus may include a conduit having an inlet to receive liquid to be treated and an outlet to discharge treated fluid, the conduit defining a plurality of liquid flow paths between the inlet and the outlet. The apparatus may further include an UV light emitting diode (LED) module array to illuminate the liquid, wherein the UV LED module array comprises a plurality of UV LED modules arranged on a curved surface of an array holder, such the UV LED module array is configured to generate a customized spatial light flux distribution within the conduit that matches the liquid flow paths so as to obtain a desired UV dose distribution.

Abstract: Some demonstrative embodiments of the invention include an illumination-based liquid disinfection device. The disinfection device may include, for example, a light transparent conduit to carry a flowing liquid to be disinfected, the conduit having an inlet to receive the liquid and an outlet to discharge the liquid, a substantially light transparent sleeve having external dimensions smaller than the internal dimensions of the conduit, the sleeve positioned within the conduit substantially perpendicular to the axis of symmetry of the conduit and a light source positioned within the sleeve.

Abstract: An ultraviolet (UV) liquid disinfection system and method are described. The system includes a conduit to carry liquid to be disinfected, the conduit having an inlet to receive the liquid and an outlet to discharge the liquid; a UV source configured to illuminate the liquid within the conduit; a liquid salinity detector to measure a value indicative of the liquid salinity; and a controller coupled to the salinity detector and configured to receive from the liquid salinity detector the measured value and to determine a desired salinity-adjusted UV dose level based on the measured value and predetermined data correlating salinity levels to respective UV dose levels.

Abstract: A method and a system is provided for inactivation of Infectious Pancreatic Necrosis Virus (IPNV) comprising illuminating a liquid containing IPNV with a lamp emitting a continuous broad band of ultraviolet (UV) light. The UV lamp may be “tuned” to optimize IPNV inactivation. The lamp may be a medium pressure UV lamp that emits UV light having wavelength between 200-245 nm and preferably, between 200-220 nm. The pressure of the lamp may be greater than 1.6 bar, 3 bar and preferably is 7 bar. The lamp may be composed of PS (synthetic quartz).

Abstract: A method and a system is provided for inactivation of Infectious Pancreatic Necrosis Virus (IPNV) comprising illuminating a liquid containing IPNV with a lamp emitting a continuous broad band of ultraviolet (UV) light. The UV lamp may be “tuned” to optimize IPNV inactivation. The lamp may be a medium pressure UV lamp that emits UV light having wavelength between 260-400 nm and preferably, between 260-300 nm. The pressure of the lamp may be greater than 1.6 bar, 3 bar and preferably is 7 bar. The lamp may be composed of PS (synthetic quartz).

Abstract: Some demonstrative embodiments of the invention include an illumination-based liquid disinfection device. The disinfection device may include, for example, a light transparent conduit to carry a flowing liquid to be disinfected, the conduit having an inlet to receive the liquid and an outlet to discharge the liquid, a substantially light transparent sleeve having external dimensions smaller than the internal dimensions of the conduit, the sleeve positioned within the conduit substantially perpendicular to the axis of symmetry of the conduit and a light source positioned within the sleeve.

Abstract: Some demonstrative embodiments of the invention include an illumination-based liquid disinfection device. The disinfection device may include, for example, a light transparent conduit to carry a flowing liquid to be disinfected, the conduit having an inlet to receive the liquid and an outlet to discharge the liquid, a substantially light transparent sleeve having external dimensions smaller than the internal dimensions of the conduit, the sleeve positioned within the conduit substantially perpendicular to the axis of symmetry of the conduit and a light source positioned within the sleeve.

Abstract: An ultraviolet (UV) liquid treatment apparatus is disclosed. The apparatus may include a conduit having an inlet to receive liquid to be treated and an outlet to discharge treated fluid, the conduit defining a plurality of liquid flow paths between the inlet and the outlet. The apparatus may further include an UV light emitting diode (LED) module array to illuminate the liquid, wherein the UV LED module array comprises a plurality of UV LED modules arranged on a curved surface of an array holder, such the UV LED module array is configured to generate a customized spatial light flux distribution within the conduit that matches the liquid flow paths so as to obtain a desired UV dose distribution.

Abstract: Some aspects of the invention may be related to an ultraviolet (UV) water disinfection system and a method of assembling such system. The system may be designed to treat, inactivate, disintegrate and/or remove at least two predetermined different types of contaminations. The system may include a chamber to carry the water containing the predetermined types of contaminations. The system may further include one or more first-type UV lamps having a first UV emission spectrum and one or more second-type UV lamps having a second UV emission spectrum different than the first spectrum. A location of the one or more first-type UV lamps and the one or more second-type UV lamps may be determined such that a combined UV impact function matches with a combined sensitivity response function of the two or more predetermined different types of contaminations in the water each having a different response function.

Abstract: An ultraviolet (UV) liquid disinfection system and method are described. The system includes a conduit to carry liquid to be disinfected, the conduit having an inlet to receive the liquid and an outlet to discharge the liquid; a UV source configured to illuminate the liquid within the conduit; a liquid salinity detector to measure a value indicative of the liquid salinity; and a controller coupled to the salinity detector and configured to receive from the liquid salinity detector the measured value and to determine a desired salinity-adjusted UV dose level based on the measured value and predetermined data correlating salinity levels to respective UV dose levels.

Abstract: Some aspects of the invention may be related to an ultraviolet (UV) water disinfection system and a method of assembling such system. The system may be designed to treat, inactivate, disintegrate and/or remove at least two predetermined different types of contaminations. The system may include a chamber to carry the water containing the predetermined types of contaminations. The system may further include one or more first-type UV lamps having a first UV emission spectrum and one or more second-type UV lamps having a second UV emission spectrum different than the first spectrum.

Abstract: Some demonstrative embodiments of the invention include an illumination-based liquid disinfection device. The disinfection device may include, for example, a light transparent conduit to carry a flowing liquid to be disinfected, the conduit having an inlet to receive the liquid and an outlet to discharge the liquid, a substantially light transparent sleeve having external dimensions smaller than the internal dimensions of the conduit, the sleeve positioned within the conduit substantially perpendicular to the axis of symmetry of the conduit and a light source positioned within the sleeve.

Abstract: Embodiments of the invention include a system and a method of monitoring in real-time, using a close loop feed-back configuration, the concentration of an active chemical substance, such as an oxidizing agent, in a water treatment system combining oxidation processes and enhanced by ultraviolet light.

Abstract: Some demonstrative embodiments of the invention may include a liquid disinfection system having built-in cleaning and deposit prevention capabilities. The system may include a conduit to carry a flowing liquid to be disinfected, an illumination source and an ultrasonic cleaning unit mounted on an external surface of the conduit.

Abstract: Embodiments of the invention are directed to a liquid disinfection device. The device may include a pipeline to hold flowing liquid to be treated with light radiation where the pipeline having walls made of light-transparent material and surrounded by air, a fluid inlet and a fluid outlet and one or more windows adapted for the transmission of light into the pipeline. The device may further include one or more light sources positioned externally to the pipeline to generate light to be transmitted through the window into the flowing liquid within the pipeline and a reflector to reflect light generated by the one or more light sources through respective windows into the flowing liquid within the pipeline, wherein the reflected light strikes the walls of the pipeline at angles of incidence greater than a critical angle for total internal reflection to enable the total internal reflection.

Abstract: A method for reducing bio-fouling formation on a liquid-contacting surface by pre-designed pretreatment of the liquid with UV light is provided. The method may include flowing liquid through a conduit having ultraviolet-transparent walls; exposing the liquid within the conduit to ultraviolet (UV) light rays from a polychromatic light source that emits in the spectral band of 200 nm to 300 nm and produces effective UV-Dose of above 40 mJ/cm2 such that a portion of the UV light rays is reflected back into the liquid by total internal reflection. After exposure to the UV light, the liquid is contacted the liquid-contacting surface, for example a reverse osmosis membrane without causing biofilm formation.

Abstract: An in-line reactor for the treatment of liquids or gasses by light radiation is disclosed. The reactor is made of tube, pipe, or chamber made of a transparent material, having at least one fluid inlet and correspondingly at least one fluid outlet. The transparent material of the tube is selected such that its refractive index is as possible close to the refractive index of the fluid to be treated. Air gap is kept around the outer transparent walls of the reactor, in order to allow for total internal reflection inside the reactor, of light directed into it from a light source in angles of incidence greater than the critical angle. Fluid treatment systems comprising at least one said in-line reactor are also disclosed. Furthermore, method of in-line fluid treatment, and especially of water sterilization and disinfection and aseptic filling of water are disclosed.