A device for monitoring and controlling water disinfecting systems having at least one broadband UV emitter arranged in a channel, wherein the device has at least one sensor, which is arranged in the water at a distance from the broadband UV emitter, and wherein the sensor is connected to a control unit, which is set up to control the output of the broadband UV emitter or the volumetric flow of water through the channel, wherein the sensor has a maximum sensitivity to UV radiation in a wavelength range between 200 nm and 240 nm.

A method for inducing continuous separation of copper ions from copper using UV-light source, comprising the following steps: (1) cutting apiece of copper into wires or slices for immersing into a vessel containing water; switching on a stirrer for stirring the water continuously and keeping the copper being immersed in the water; (2) turning on the UV-light source for irradiating the copper and the water continuously; appearing a large amount of white precipitate in the water; (3) filtering the solution; detecting the filtered solution, a certain concentration copper ions in the filtered solution are found; adding hydrochloric acid by drops into the unfiltered original solution, the white precipitate is dissolved and copper ions are detected. The invention makes the copper separate out copper ions continuously and can be applied to copper ion disinfection for swimming-pool water, scenic water and cooling water, etc.

A disinfecting faucet assembly comprising a faucet body; a faucet spout; and a faucet spray head, wherein the faucet spray head comprises a UV light source configured to irradiate and disinfect water dispensed from the spray head. The UV light source may be positioned at or towards an outlet area of the spray head, may be positioned at or towards an inlet area of a spray head, and/or may be positioned at a side area of a spray head.

The present disclosure relates to the technical field of degradation of persistent pollutants and discloses a method for efficiently degrading a perfluorinated compound (PFC), through which the problems of harsh reaction conditions and less high defluorination rate existing in prior-art methods for degrading PFCs are solved. In the present disclosure, a 3-indoleacetic acid (IAA) solution is irradiated with 254 nm UV light to generate hydrated electrons, with which the PFC are degraded by reduction under an aerobic condition, where an organo-modified montmorillonite is added to provide a reaction microzone, so the degradation and defluorination effects of the hydrated electrons for the PFC are greatly improved. The method for degrading a PFC according to the present disclosure is not affected by the pH of and the dissolved oxygen in the solution and less affected by the humic substances in a water body, thereby overcoming the defects in existing methods for degrading PFCs with hydrated electrons while the degradation efficiency is ensured. Therefore, the present disclosure is of great application value.

Methods and systems are provided for disinfecting water mains using ultraviolet (UV) light and advanced oxidation processes. One or more UV light sources are provided and secured to a movable device that moves axially in a pipe. The frequency and intensity of the UV light is determined based on characteristics of the pipe, such as its material and size. The rate at which the movable device moves through the pipe is also determined so that the interior surface of the pipe is properly disinfected. The movable device is remotely caused to move through the pipe. An oxidant supply component having a dispensing portion dispenses an oxidizing agent into the pipe. A portion of the emitted UV light may convert the dispensed oxidizing agent into additional oxidizing agents that further disinfect the pipe.

A UV lamp module having a frame and at least two lamp units, wherein each lamp unit includes a UV lamp extending in an axial direction, a jacket tube enclosing the UV lamp, electrical connections and a head section for fastening the lamp unit to the frame, wherein for each lamp unit, a fastening device is provided by which the lamp unit can be separably connected to the frame in the region of the head section.

According to an embodiment, an ultraviolet (UV) irradiation apparatus includes a treatment tank, a UV irradiation member, a UV sensor, and an air outlet unit. The air outlet unit is connected to an air outlet hole provided at a position higher than a horizontal plane that passes through the UV sensor, and is provided to release, to the outside of the treatment tank, through the air outlet hole, air that accumulates inside the treatment tank when the treated waterlasses through the inside of the treatment tank.

A light source assembly that can be connected to a reactor and which includes an board with a plurality of ultraviolet (UV) light-emitting diodes (LEDS) and a first electrical connector that is connected to a cable for supplying electrical power to the first board. The light source assembly includes an interconnector board that is separated from the LED board and which includes a second electrical connector that is connected to the cable and a third electrical connector that can connect to another cable, e.g., for supplying power to the light source assembly.

A purifying method for photochemical elimination of xenobiotics present in water. The purifying device is used which has a photochemical reactor unit having at least one inlet for contaminated water and one outlet for purified water, it provides a flow path for continuously flowing water from said inlet to said outlet, and is equipped with a radiation source module providing ultraviolet radiation in a wavelength range ranging from 100 to 280 nm. The method includes performing ultrafiltration, thereby removing suspended and solvated macromolecular matter from the water; conducting the permeate via the at least one inlet into the photochemical reactor unit; subjecting the water flowing from said inlet to said outlet to ultraviolet radiation at wavelengths ranging from 100 to 280 nm, thereby generating hydroxyl radicals initiating degradation of said xenobiotics; and supplying air or dioxygen into the water, thereby enhancing the initiated oxidative degradation of said xenobiotics.

A method for inducing continuous separation of copper ions from copper using UV-light source, comprising the following steps: (1) cutting apiece of copper into wires or slices for immersing into a vessel containing water; switching on a stirrer for stirring the water continuously and keeping the copper being immersed in the water; (2) turning on the UV-light source for irradiating the copper and the water continuously; appearing a large amount of white precipitate in the water; (3) filtering the solution; detecting the filtered solution, a certain concentration copper ions in the filtered solution are found; adding hydrochloric acid by drops into the unfiltered original solution, the white precipitate is dissolved and copper ions are detected. The invention makes the copper separate out copper ions continuously and can be applied to copper ion disinfection for swimming-pool water, scenic water and cooling water, etc.