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.

Described herein is a networked smart device capable of transmitting water flow and quality data to a cloud database, in real-time. In some instances, the device is part of a broader ecosystem or platform comprised of one or more of the devices, associated software and data management. This type of platform enables data analysis of water intake and quality, for a variety of users. Physically, the device itself connects to a water outlet such as a sink faucet or refrigerator intake pipes, and is integrated/incorporated into a flow-through water disinfection reactor as well as a filtration mechanism. Additionally, flow sensors and antennas for wireless communications capability can be included to transmit the data. An accompanying software application and back-end database management allows device users to manage their data and track their water intake.

A sterilizing module includes a main body and a light source. The main body includes an inner surface, an outer surface and an internal space to treat a target substance in a fluid and connected an inlet and a outlet. The light source is configured to emit light toward the internal space to sterilize the target substance in the fluid. The light source includes a substrate and a plurality of light emitting structures disposed on the substrate. The plurality of light emitting structures is disposed to be spaced apart each other. A first distance between two light emitting structures is adjacent to each other varies depending on a second distance from each light emitting structure to the inner surface of the main body. The second distance has a maximum value and a minimum value of illuminance and a difference between the maximum and the minimum value thereof is about more than 75%.

An apparatus for treating a fluid comprises a fluid container having a chamber for holding the fluid and an ultraviolet (UV) reactor. The UV reactor comprises: an inlet in fluid communication with the chamber; an outlet located above the inlet; a conduit extending longitudinally between the inlet and the outlet to facilitate fluid flow from the inlet to the outlet in a first direction having a component antiparallel to the direction of gravity; and a UV emitter optically oriented to emit UV radiation directed toward the fluid travelling through the conduit. At least part of the chamber is located above the outlet to cause the fluid to flow from the chamber to the inlet and through the conduit to the outlet due to force of gravity.

An apparatus and method for irradiating a fluid containing a material to be irradiated, comprising at least one irradiation chamber having at least one inlet port, one or more UV radiation sources inside the irradiation chamber(s) optically coupled to the fluid in the irradiation chamber(s) via at least one UV-transparent window in contact with the fluid; one or more seals or gaskets disposed adjacent to the radiation sources to protect them from the fluid; and at least one heat exchange mechanism inside the irradiation chamber(s) thermally coupled to the radiation sources and to the fluid. The UV radiation sources and the at least one heat exchange mechanism are at least partially submerged in the fluid in the irradiation chamber.

A biofilm inhibition system, for a sensor which includes a chamber with an interior volume and an interior surface exposed to direct contact with a fluid during sensor operation, includes an ultraviolet light emitting diode (UV-LED) and an optical subsystem. The optical subsystem is coupled to the UV-LED to deliver a portion of the emitted UV light to illuminate a substantial fraction of the interior volume and the interior surface. A watertight housing encloses the UV-LED and at least a portion of the optical subsystem.

Methods and systems for the purification of an aqueous solution comprising a photocatalyst employed as an anode and a cathode in communication with an electrolyte to achieve a current flow wherein a charge is applied between the cathode and the photocatalytic excited anode a corresponding increase in electron-hole pairs occurs.

A membrane module and a membrane separating method for processing liquids, that includes: the liquid stream of a liquid to be processed is supplied, via an inlet, to a separating membrane designed as a flat membrane, such that a purified permeate passes the separating membrane; and the separating membrane is irradiated by UV light at least on the side of the separating membrane facing the inlet, the irradiation by UV light occurring by means of a mat and/or a fabric and/or a grating and/or a net, which consists, in full or in part, of optical waveguide fibers which out-couple light laterally, forming an irradiation element.

The invention relates to a lamp module (10) which is designed to be used as an immersion radiator in photochemical reactors. The lamp module has a support body (3) with at least one light-emitting diode (LED) (1), a head part (12) for electrically connecting the at least one LED (1) and for mounting the support body (3), and an immersion tube (11) that delimits an area (19) in which the support body (3) is arranged together with the at least one LED (1). The area (19) delimited by the immersion tube (11) is filled with an electrically non-conductive liquid (100), which is transparent to the wavelengths of the radiation emitted by the LEDs (1) of the lamp module (10), such that the at least one LED (1) is completely immersed into the non-conductive liquid (100), wherein the head part (12) has connection lines (18, 18) which communicate with the area (19) for supplying and discharging the non-conductive liquid (100), and the support body (3) is designed as a heat sink which delimits at least one internal fluid path as a supply section (4) for the non-conductive liquid (100). The supply section (4) is connected to one of the connection lines (18, 18′) via the head part (12) and opens into the area (19) on the support body (3) side facing away from the head part (12). The invention additionally relates to a photoreactor which is equipped with a corresponding lamp module.

There is described a radiation source module for use in a fluid treatment system. The radiation source module comprises a plurality of elongate radiation source elements secured to a frame element, each elongate radiation source element having a longitudinal axis; a first motive element secured to a first side portion of the frame element; and a second motive element secured to a second side portion of the frame element. The first motive element and the second motive element are configured to reversibly translate the plurality of elongate radiation source elements in a direction substantially parallel to the longitudinal axis. A fluid treatment system comprising the radiation source module is also described.