An apparatus for sterilizing a liquid comprises a container having an inlet, an outlet and an interior with an outer wall which defines a first section and a second section, the first section being configured to receive the liquid. A rotatable arrangement set up in the interior with a surface is furthermore provided, the rotatable arrangement being configured in such a way that during a rotation the surface moves from the first section into the second section and from there back into the first section. The apparatus furthermore comprises at least one radiation source which is adapted to emit radiation in the ultraviolet wavelength range.

A disinfection apparatus and method is provided for disinfecting a fluid. The apparatus elements define three internal container volumes. Fluid is introduced into an entry volume where its flow is conditioned to reduce splash and slow the fluid flow. The fluid is then channeled into a disinfection volume where a disinfection unit delivers a disinfection agent to the fluid. Finally, the fluid exits the apparatus through an exit volume. In one aspect, a sink-trap is disclosed in which wastewater liquid contacts a pair of diverters. The diverters have conditioned contact surfaces that slows and spreads the liquid flow and reduces liquid splash. The wastewater then passes through a UV chamber in which it is disinfected. The liquid then exits the sink-trap. Advanced self-cleaning apparatus are additionally disclosed to clean and disinfect the sink-trap and trapped wastewater. The entire apparatus operates under computer control.

Provided is a UV lamp socket assembly for quickly, easily and safely drawing out a UV lamp without stopping operation of a UV reactor. The UV lamp socket assembly includes a lamp socket part allowing a UV lamp to be fitted thereto, and having a latch formed in a side surface to pivot around; a lamp socket nut part allowing the UV lamp to be inserted therethrough, having an annular latching groove formed in a side surface and provided for attaching and detaching the latch, and allowing a portion of the lamp socket part to be inserted while the latch is latched into the latching groove; and a lamp socket holder part to be fixed to a frame of the UV reactor using a fastening part and to be fastened with the lamp socket nut part to support the lamp socket part.

A collimation type disinfection and water purification device includes a reactor cavity. The reactor cavity is in a linear shape extending in a front side direction and a rear side direction. A water inlet and a water outlet are respectively formed in side walls of a front side and a rear side of the reactor cavity. Ultraviolet (UV) modules are arranged at end parts of the reactor cavity. The UV module includes a radiation component and a Total Internal Reflection (TIR) lens. The radiated UV light can enter the reactor cavity in a collimation manner by using a design that the radiation component is matched with the TIR lens, which improves the disinfection efficiency.

An embodiment provides method for controlling lamp output within an array of lamps, including: receiving sensor data corresponding to one of a plurality of lamps within the array, wherein the sensor data comprises an irradiance value from at least one of: within a lamp sleeve and an irradiance value from outside a lamp sleeve; identifying, based the sensor data, a change in an output of the one of the plurality of lamps; sharing the sensor data with other of the plurality of lamps within the array; and adjusting, in response to the sharing, an output of at least one of the other of the plurality of lamps within the array, thereby compensating for the change in the output of one of the plurality of lamps. Other aspects are described and claimed.

An UV-C device may include several UV-C light sources (e.g., UV-C LEDs) and such UV-C LEDs may have UV-C reflecting structures arranged to direct UV-C in a particular direction and at a particular size and shape. Doing so may, for example, increase the UV-C in a particular direction or working area. A UV-C generating device may be utilized in an air stream, such as an air duct, to sterilize air from that air stream. Multiple UV-C inactivation devices may be coupled in series and placed into a single housing for in order to increase the efficacy of the UV-C inactivation device. The inlet of the device may draw air using an inlet module attachment (e.g., a hood with one or more than one inlet hood) and may output air using an outlet module attachment (e.g., a duct to deliver air to an outflow air duct). Computational fluid dynamic software may be provided where UV-C inactivation devices may be positioned (e.g., manually or autonomously by an adaptive algorithm) to determine impact on airflow against various pathogens (e.g., Staphylococcus and/or SARS-CoV-2).

A light emitting device (1) is provided that can be used in various contexts, including the context of realizing an anti-fouling action on surfaces. The light emitting device (1) comprises light emitting units (10) being arranged in a plane filling pattern (20) for covering at least a substantial portion of a surface. Individual light emitting units (10) are electrically interconnected through connection areas (12, 13) as present on the light emitting units (10) for providing electrical access to an internal electrical circuit (11) thereof, wherein the light emitting units (10) overlap at the positions of at least portions of the connection areas (12, 13) thereof. Further, it may be so that at least one of the connection areas (12, 13) of the individual light emitting units (10) is electrically connected simultaneously to respective connection areas (12, 13) of at least two other light emitting units (10).

A low pressure air-gas mixing apparatus and method includes a containment vessel where the containment vessel includes a back and a front and a left side and a right side and a top and a bottom. An air input line and an air discharge line are connected with the containment vessel where the air discharge line is located in a waste water lift station. At least one ultra-violet lamp within the containment vessel is provided such that air, from the air input line, within the containment vessel is exposed to ultra-violet light such that ozone is produced.

The invention provides a photoreactor assembly (1) comprising a reactor (30), wherein the reactor (30) is configured for hosting a fluid (100) to be treated with light source radiation (11) selected from one or more of UV radiation, visible radiation, and IR radiation, wherein the reactor (30) comprises a reactor wall (35) which is transmissive for the light source radiation (11), wherein: (i) the reactor (30) is a tubular reactor (130), and wherein the reactor wall (35) defines the tubular reactor (130); (ii) the tubular reactor (130) is configured in a tubular arrangement (1130); (iii) the photoreactor assembly (1) further comprises a light source arrangement (1010) comprising a plurality of light sources (10) configured to generate the light source radiation (11), wherein the reactor wall (35) is configured in a radiation receiving relationship with the plurality of light sources (10); and (iv) one or more of the tubular arrangement (1130) and the light source arrangement (1010) defines a polygon (50).

A UV reactor irradiates a flow of fluid with UV radiation. The reactor comprises: a fluid conduit defined by a heat conducting conduit body comprising one or more heat conducting walls for permitting a flow of fluid therethrough; a UV-LED operatively connected to a PCB and oriented for directing radiation into the fluid conduit. The PCB comprises a heat conducting substrate having a first surface. The conduit body is in thermal contact with the first surface of the heat conducting substrate. Heat is dissipated from the UV-LED via the heat conducting substrate, the thermal contact between the first surface of the heat conducting substrate and the heat conducting conduit body, and from the one or more heat conducting walls of the heat conducting conduit body to the fluid flowing through the fluid conduit.