Abstract:
The present invention relates to a flame proof UV-reactor (16) for treating liquids, such as ballast water, comprising a reactor house with reactor walls, an inlet pipe (14) and an outlet pipe (18) for the liquid to be treated, a number of UV-treatment units attached inside said reactor house comprising UV- generators (22) for providing UV-radiation in the interior of said reactor house. The present invention relates also to a system for treating liquids comprising the flame proof UV-reactor (16). Said each UV-treatment unit comprise also at least one UV-generator connection mean, preferably two UV-generator connection means, to withstand internal explosion pressure, wherein the UV- generator connection means comprise sockets and caps, and has flame-proof gaps (46, 48) to cool down the explosion before it reaches the athmosphere surrounding the reactor (16). Or there may be at least one check valve (54) arranged on the inlet pipe (14) for liquids to secure that the reactor (16) is filled with liquids to be treated, which liquid functions as a flame arrestor if an explosion occurs inside the reactor (16).
Abstract:
Provided herein are systems and methods for the treatment and purification of fluids (e.g., water) using a light-emitting diode (LED) light source. In one embodiment, for example, there is provided a fluid flow conduit having an LED light source and a photo-catalytic material disposed therein. The LED light source emits ultraviolet light with a peak wavelength between about 265 nm and about 400 nm. In operation, the photo-catalytic material absorbs the ultraviolet light from the LED light source, and releases free radicals into the fluid. The free radicals then degrade organic substances (e.g., bacteria) in the fluid.
Abstract:
The invention relates to a device (1) and also a method for determining the degree of disinfection, and for determining the time point (to) when a defined degree of disinfection is reached by a liquid, in particular drinking water, that is situated in a container (100) which is light-permeable at least in a UV range. The device (1) comprises in this case a UV measuring appliance (2) for measuring the intensity of the UV radiation in the region of the container (100), a data analysis unit (3) to which the values of the UV intensity which are measured by the UV measuring device (2) are fed, and wherein the data analysis unit (3) converts the UV intensity values measured at the start of a measurement at defined time points (t) to form a characteristic (K), and wherein the data analysis unit (3) compares the characteristics (K) determined at defined time points (t) with a predetermined characteristic (Ko), which predetermined characteristic (Ko) corresponds to a defined degree of disinfection of the liquid, and wherein the device (1) comprises at least one signal output appliance (4) which, in the event that the determined characteristic (K) reaches or exceeds the value of the predetermined characteristic (Ko), provides a signal output.
Abstract:
The invention relates to a water treatment using an UV AOP. The invention combines an UV AOP (11) applied to a water containing a free chlorine species (8) with a chemical post treatment (14), a quenching. The quenching (14) is applied to said water (9) after the UV AOP (11) able to reduce a remaining content of said free chlorine species in said water (9).
Abstract:
A device (1) for subjecting a liquid to a purifying process comprises an assembly of a first container (10) and a second container (20) for receiving and containing a liquid, wherein means (11) for performing a purifying action on the liquid are arranged in the first container (10), wherein the second container (20) is arranged for receiving an overflow from the first container (10), and wherein a liquid passage (15) is present between the first container (10) and the second container (20). Furthermore, the device (1) comprises means (16) which are associated with the liquid passage (15) between the first container (10) and the second container (20), and which are adapted to assume various states, including a state for blocking the liquid passage (15), and a state for deblocking the liquid passage (15), wherein the device (1) may also be equipped with means (17) for controlling the blocking/deblocking means (16).
Abstract:
The invention relates to a device for making a liquid safe, that comprises a sterilizer (1) including an ultraviolet lamp (2), and a sensor (12) for measuring the ultraviolet radiation and connected to an electronic board (9). An actuator (8) is connected to the electronic board (9) driving the opening of an electrovalve (10) in order to dispense or stop dispensing the liquid, said electrovalve (10) being provided upstream from the sterilizer (1) relative to the liquid flow direction. The electronic board (9) controls the opening of the electrovalve (10) when the sensor (12) measures an ultraviolet amount higher than a predetermined threshold for a given amount of liquid. The device is further fitted with a flow rate adjustment means (15) adapted to the predetermined threshold. The invention also relates to a method for implementing said device.