Abstract:
The output wavelengths of an electrodeless lamp are controlled by passing a fluid over the surface of the lamp to control its temperature. The stabilized temperature prevents thermal runaway of the lamp and stabilizes the output wavelengths of the lamp. When the fluid passing over the lamp is water, the lamp can be used for sanitary treatment of the water. The treatment can be enhanced by shaping the electrodeless lamp to provide maximally effective water treatment.
Abstract:
According to one embodiment, an ultraviolet irradiation system that sterilizes, disinfects, and inactivates raw water such as city water or underground water, includes a plurality of ultraviolet irradiation devices connected in series, and a controller configured to control output and non-output of the ultraviolet irradiation devices. The ultraviolet irradiation device includes a water processing vessel through which the raw water flows, an ultraviolet lamp configured to irradiate the raw water in the water processing vessel with ultraviolet rays, and an ultraviolet sensor configured to measure an amount of ultraviolet rays emitted from the ultraviolet lamp.
Abstract:
The invention relates to a cleaning rotor (1) having a longitudinal axis (L), a base part (5), which extends concentric to the longitudinal axis (L), a head part (3) and a strut element (9) that extends between the base part and the head part. Said strut element (9) extends in a helical manner about the longitudinal axis (L). The invention is characterized in that at least one supporting part (7) is placed between the base part (3) and the head part (3) while extending parallel to the longitudinal axis (L). The strut element (9) is supported on the supporting part (7) and is concave over its length.
Abstract:
An apparatus and method for treating ballast water to achieve IMO standards for ballast water includes a reactor fabricated of copper nickel for receiving and discharging ballast water, a UV source for irradiating the water in the presence of copper nickel thereby to generate free radicals for biocidal and bactericidal effects on organisms and microbes entering the reactor with ballast water.
Abstract:
The invention described herein contains two aspects, usable together or separately, that address the needs in the art described above, namely a first aspect that relates to the provision of a transportable water purification system that can be contained on a passenger transport vehicle, and that can use, but does not require, continuous, real-time monitoring, and a second aspect that relates to the use of UV purification of the water as it is uploaded to the passenger transport vehicle after a single pass through the UV chamber.
Abstract:
Described is a reactor for irradiating ultraviolet light into a fluid reaction medium (3). The reactor consists of at least one housing (15) which encloses a tubular cavity, with a radiation source (1) for generating ultraviolet light and an inner tube (2) which, together with the housing (15), forms an irradiation chamber (26) which, in particular, is of annular shape, the irradiation chamber (26) being connected at least with an inlet (13) and an outlet (14) for the reaction medium (3) and is perfused by reaction medium (3) in the longitudinal direction of the tube (2), the irradiation chamber (26) being equipped with means (6, 25) for generating an additional radial flow routing of the reaction medium (3).
Abstract:
This invention provides a filtration system for home aquaria that uses a closed-circuit pathway having a surface that contacts a flow of water moving between a tank inlet and tank outlet. The surface allows for algal growth thereon, and for transmission of light thereonto so as to provide photosynthetic energy to the algae. The algae acts to scrub contaminants (nitrogenous compounds, for example) as part of its growth cycle, and thereby purify the water. Additional components, such as injected air and filter media can also be provided to the water circuit to enhance algal growth, oxygenate the water and remove particulates. In an illustrative embodiment, the surface is transparent or translucent and a light that transmits appropriate wavelengths (for example, full-visible spectrum) is placed in proximity to the surface.
Abstract:
A device (2) for sterilizing a fluid comprising a sterilization zone (4) having an outlet portion (10), comprising at least one aperture (16) through which the fluid may exit the device (2), wherein the sterilization zone (4) is arranged to be irradiated by a source of ultraviolet radiation (18) such that substantially all of the internal surfaces of the outlet portion (10) are directly irradiated by the source of ultraviolet radiation (18) and wherein the source of ultraviolet radiation (18) and the at least one aperture (16) are arranged such that substantially no ultraviolet radiation may be transmitted directly from the source of ultraviolet radiation (18) through the at least one aperture (16). Preferably the device (2) comprises a shower unit. There is also disclosed a method of sterilizing a fluid.
Abstract:
An apparatus for purifying contaminated water by photochemical oxidation has at least a subflow of water that is directed through a flow channel in which the water is irradiated with UV electromagnetic radiation from at least one UV lamp assembly. The UV lamp assembly includes a high-pressure UV halogen lamp, which is mounted generally parallel with the flow direction in the channel. A method of irradiating the water flow with UV radiation includes using the at least one UV halogen high-pressure lamp assembly, which has energy intensive wave lengths in the range of 150 nm to 260 nm, preferably in the range of 160 nm to 220 nm, and most preferably in the range of 192 nm to 205 nm.
Abstract:
Apparatus and process for UV irradiation and heat sterilization of fluid media, and in particular of liquids containing microorganisms and/or viruses.