Abstract:
A desalination system includes a vertical column with a lower end submerged into a body of liquid to be treated. The column has a dark-colored outer surface able to absorb electromagnetic energy, and at least one vacuum compressor is connected to provide a vacuum pressure in the vertical column such that the liquid is drawn into the vertical column through openings in the vertical column. A condensing dome has a main shell and that receives vapor of the liquid in the vertical column via a vapor port joining the vertical column and the condensing dome. A wind-driven outer turbine surrounds the main shell of the condensing dome and draws outside air into a space around the main shell of the condensing dome. A tank is connected to the condensing dome via a pipe and receives desalinated liquid from the condensing dome.
Abstract:
Provided is a method and apparatus for producing pure water in which water that has been subjected to an ultraviolet oxidation treatment performed with an ultraviolet oxidation device is brought into contact with a platinum-group metal catalyst, the method and apparatus eliminating the likelihood of the catalyst being degraded and enabling decomposition of hydrogen peroxide to be performed for a prolonged period of time in a consistent manner. Water-to-be-treated is subjected to an ultraviolet oxidation treatment performed with an ultraviolet oxidation device 2 and subsequently subjected to a hydrogen peroxide removal treatment performed with a hydrogen peroxide removal device 4 including a platinum-group metal catalyst, wherein the TOC concentration in water fed to the ultraviolet oxidation device 2 is 5 ppb or less. An anion exchange resin tower 3 is installed in a stage following the ultraviolet oxidation device 2.
Abstract:
The invention relates to a device and also a method for determining the degree of disinfection, and for determining the time point when a defined degree of disinfection is reached by a liquid, in particular drinking water, that is situated in a container which is light-permeable at least in a UV range. The device comprises in this case a UV measuring appliance for measuring the intensity of the UV radiation in the region of the container, a data analysis unit to which the values of the UV intensity which are measured by the UV measuring device are fed, and wherein the data analysis unit converts the UV intensity values measured at the start of a measurement at defined time points to form a characteristic, and wherein the data analysis unit compares the characteristics determined at defined time points with a predetermined characteristic, which predetermined characteristic corresponds to a defined degree of disinfection of the liquid, and wherein the device comprises at least one signal output appliance which, in the event that the determined characteristics reaches or exceeds the value of the predetermined characteristic, provides the signal output.
Abstract:
Molecularly imprinted catalysts are disclosed. The catalysts can include a core and a layer at least partially encapsulating the core. The core can include a titania-based photocatalyst. The layer can include titania covalently coupled to one or more silane coupling agents having an organic functional group. The layer can also include one or more molecular-sized cavities configured to selectively receive one or more contaminants. Also disclosed herein are methods of making and using the molecularly imprinted catalyst, as well as apparatuses and compositions including the molecularly imprinted catalyst.
Abstract:
An evaporative humidifier including a water bucket, a tub configured to accommodate water introduced from the water bucket, a humidifying element configured to execute humidification by receiving the water accommodated in the tub and evaporating the received water, and an ultraviolet ray emitting part provided on the tub to emit ultraviolet rays to the tub.
Abstract:
A water purifier that includes a housing having an inlet and an outlet opposing each other, a filter disposed in the housing and connected to the inlet to reduce the flow rate of water introduced into the filter from the inlet, a separator disposed in the housing to store water discharged from the filter, a supply conduit disposed in the housing and connected to a central portion of the separator to provide a path through which the water in the separator is drained, and an ultraviolet light emitting diode (UV LED) module disposed in the housing to irradiate UV rays toward the water stored in the separator.
Abstract:
Disclosed herein is an ultraviolet sterilizer having a watertight function. The ultraviolet sterilizer includes a housing and an ultraviolet sterilization unit. The housing has an inlet through which ballast water is drawn into the housing, and an outlet through which the ballast water is discharged from the housing after the ballast water has been sterilized. The ultraviolet sterilization unit is provided in the housing and includes an ultraviolet lamp applying ultraviolet rays to the ballast water to sterilize the ballast water. The ultraviolet sterilizer further includes a cap which supports each of the opposite ends of the ultraviolet sterilization unit and is watertightly coupled to the housing. Thus, even if the ultraviolet sterilization unit is damaged, ballast water is prevented from being drawn into a reception space which contains external devices, and explosive gas which may cause the ultraviolet sterilizer to explode is also prevented from entering the cap.
Abstract:
A method of inactivating microorganisms such as viruses within a fluid such as a biological fluid is disclosed. The method includes the steps of providing a UV reactor, which may take the form of an elongated generally annular reaction chamber surrounding at least one elongated UV lamp, moving the fluid within the reaction chamber in a primary flow directed along the length of the UV lamp, and inducing a circulating secondary flow within the fluid with the secondary flow being superimposed on the primary flow. As the fluid moves through the reaction chamber in the primary flow, it is circulated repeatedly toward and away from the UV lamp in the circulating secondary flow to provide uniform and controllable exposure of the entire volume of fluid to ultraviolet radiation. Microorganisms such as viruses are thus inactivated while desirable components in the fluid, such as proteins, are preserved without the use of a free radical scavenger.
Abstract:
Disclosed is inductive coupling of power to devices having negative resistances, such as gas-filled discharge lamps (fluorescent tubes, neon signs, and the like) from a primary inductive loop, using resonant conditioning of the power provided to the device. A “C” shaped inductor (202) around the loop and a resonating capacitor (406) in parallel with the inductor provide a current source to the lamp (403) from across the capacitor. The circuit is capable of first igniting a lamp using a higher voltage available when the Q of the unloaded circuit is high, then running the lamp or other device at a controlled current. The lamp current is substantially proportional to the primary inductive loop flux, and substantially independent of the lamp resistance. A second inductor (404) in series with the first though not itself a collector of flux acts as a current limit. Applications include lighting, displays (optionally isolated and dimmable), and production of ultraviolet radiation.
Abstract:
A portable liquid filtration device includes a portable housing, an inlet defined on the portable housing and oriented to receive liquid therethrough, an outlet defined on the portable housing and oriented to discharge liquid therethrough, and an ultraviolet (UV) chamber in downstream flow communication with the inlet. The UV chamber includes a UV lamp configured to irradiate the liquid with UV light. The device further includes a mounting assembly for coupling the UV chamber to the housing. The mounting device includes a set of rails coupled to the housing and defining a corresponding rail notch, and a clamp. The clamp includes a first grip arm at a first end of the clamp and a flange at a second end of the clamp. The first grip arm is shaped to secure the UV chamber to the clamp and the flange provides a friction fit between the clamp and the rails.