Abstract:
PROBLEM TO BE SOLVED: To provide an ozone-accelerated oxidation water treatment apparatus using ultraviolet rays together which can increase the generation efficiency of radical species by reactions of ozone and ultraviolet rays to improve the decomposition efficiency of substances to be treated contained in a water to be treated. SOLUTION: The ozone-accelerated oxidation water treatment apparatus using ultraviolet rays together has a water treatment tank 1, an ozone-dissolved water tank 2, an ozonized gas generator 3, and an ultraviolet generator 4 installed in the water treatment tank 1. A plurality of injection nozzles 5 to which ozone dissolved water is supplied from the ozone dissolved water tank 2 are installed so as to face toward the ultraviolet radiation surface 4a of the ultraviolet generator 4. An ozonized gas diffuser 12 is installed in the ozone dissolved water tank 2, and ozonized gas which is generated by the ozonized gas generator 3 and preferably pressurized by a compressor 13 to about 2 to 3kg/cm 2 is diffused from the ozonized gas diffuser 12 into the ozone dissolved water tank 2. The high-pressure/high-concentration ozone dissolved water generated in the ozone dissolved water tank 2 is supplied to the injection nozzles 5 to be sprayed onto the ultraviolet radiation surface 4a. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a dialysis waste liquid treatment device suppressing the formation of a plug in a pipe and effectively reducing COD (chemical oxygen demand) and BOD (biochemical oxygen demand) of hemodialysis waste liquid without necessitating a broad space. SOLUTION: This waste liquid treatment device of a hemodialysis unit is provided with a transport pipe transporting the dialysis waste liquid generated form the hemodialysis unit, a bacteriostasis treatment tank suppressing proliferation of bacteria due to the dialysis waste liquid transported by the transport pipe, and an ozone water release nozzle releasing ozone water into the bacteriostasis treatment tank. COPYRIGHT: (C)2004,JPO
Abstract:
An apparatus has a tank with an interior for containing water, a nozzle for directing ozonated water out of the spray apparatus, and an electrolytic cell located between the nozzle and the tank. The electrolytic cell is configured to ozonate water as the water flows from the tank to the nozzle. The apparatus also includes a power source for providing electric potential to the electrolytic cell. The tank, nozzle, and electrolytic cell all are part of a single spray bottle or dispenser (e.g., like a soap dispenser).
Abstract:
A ballast water treatment apparatus equipped with devices for injecting bromine salt and ozone according to the present invention includes a ballast pipe 100 into which seawater flows; a ballast pump 110 for transferring seawater into the ballast pipe 100; bromine salt injection part 3000; and an ozone processor 2000, wherein the bromine salt injection part 3000 includes bromine salt storage tank 300 for storing bromine salt; bromine salt transfer pipe 310, which is connected to the ballast pipe 100, for injecting bromine salt supplied from the bromine salt storage tank 300 into the ballast pipe 100; and bromine salt injection pump 340, which is installed in the bromine salt transfer pipe 310, for pressurizing bromine salt to be injected into the ballast pipe 100, and the ozone processor 2000 includes an ozone injection device 200 for supplying ozone to the ballast pipe 100; a mixer 220, which is installed in the ballast pipe 100, for mixing ozone supplied from the ozone injection device 200 and seawater transferred into the ballast pipe 100; and an ozone transfer pipe 210, which is connected to the mixer 220 of the ballast pipe 100, for injecting ozone supplied from the ozone injection device 200 into the ballast pipe 100. In addition, the present invention provides a ballast water treatment apparatus equipped with devices for injecting bromine salt and ozone, to which a side-stream portion for bypassing seawater is added. Thus, in another embodiment, the ballast water treatment apparatus includes a ballast pipe 100 into which seawater flows; a ballast pump 110 for transferring seawater into the ballast pipe 100; a side-stream portion 4000; bromine salt injection part 3000; and an ozone processor 2000, wherein the side-stream portion 4000 includes a side-stream pipe 400, which is branched from the ballast pipe 100, for bypassing a portion of seawater introduced from the ballast pipe 100; a side-stream pump 410, which is installed in the side-stream pipe 400, for transferring a portion of seawater bypassed from the ballast pipe 100 into the side-stream pipe 400; and an injector 420 for injecting the bypassed seawater back into the ballast pipe 100, the bromine salt injection part 3000 includes bromine salt storage tank 300 for storing bromine salt; bromine salt transfer pipe 310, which is connected to the side-stream pipe 400, for injecting bromine salt supplied from the bromine salt storage tank 300 into the side-stream pipe 400; and bromine salt injection pump 340, which is installed in the bromine salt transfer pipe 310, for pressurizing bromine salt to be injected into the side-stream pipe 400, and the ozone processor 2000 includes an ozone injection device 200 for supplying ozone to the side-stream pipe 400; a mixer 220, which is installed in the side-stream pipe 400, for mixing ozone supplied from the ozone injection device 200 and seawater transferred into the side-stream pipe 400; and an ozone transfer pipe 210, which is connected to the mixer 220 of the side-stream pipe 400, for injecting ozone supplied from the ozone injection device 200 into the side-stream pipe 400. In each case, the positions of the bromine salt injection part 3000 and the ozone processor 2000 may be determined differently depending on the situation. In addition, in the ballast water treatment apparatus according to the present invention, the bromine salt storage tank 300 may be located above a point where the side-stream pipe 400 or the ballast pipe 100 is connected to the bromine salt transfer pipe 310 so that bromine salt is injected into the side-stream pipe 400 or the ballast pipe 100 by hydraulic pressure and thus the bromine salt injection pump 340 may be omitted. In addition, the bromine salt injection part 3000 may further include a diffuser 350 for diffusing bromine salt so that bromine salt is sufficiently mixed with seawater, when bromine salt is injected into the side-stream pipe 400 or the ballast pipe 100. In summary, a method of generating hypobromous acid responsible for maintaining sterilizing power has been suggested as a method of securing the disadvantage of conventional ozone treatment system, such as short residence period of ozone. According to the ballast water treatment system of the present invention, by introducing bromine salt injection process in addition to an ozone treatment process, it is possible to sufficiently generate hypobromous acid even in seawater containing a low content of bromine salt or low salt water. Therefore, when the system of the present invention is used, hypobromous acid may be sufficiently generated without being affected by the conditions of water intake area, and consequently sterilization may be continuously preformed in a ballast tank.
Abstract:
There is provided a dissolver tube to generate a pressure change to a fluid to change a physical property of the fluid, the tube comprising: a hollow tubular outer body; an inlet cap coupled to the body at an inlet thereof; an outlet cap coupled to the body at an outlet thereof; and a plurality of mesh screens arranged between the inlet cap and outlet cap, wherein each mesh screen has a plurality of micro-holes formed therethrough, each micro-hole having a Venturi structure, thereby to momentarily continuously contract, relax, and shear the fluid passing through the tube.
Abstract:
The disclosure relates to a method of performing ozonolysis or ozone-based oxidation on a liquid or emulsified reagent using a tubular falling film reactor with one or multiple tubes wherein the combined ozone and carrier gas flow is co-current.
Abstract:
An object of the present invention is to provide a water containing permanganate ions that exist stably over a long period of time and a method for producing the water. A water containing permanganate ions of the present invention as a means for resolution is produced by dissolving 0.1 µM to 1 mM of a divalent manganese compound, 0.1 µM to 1 mM of an organic iron compound, and 1 to 300 mM of an inorganic salt in a water with ozone-microbubbles generated using an ozone gas at a concentration of 1 to 300 g/Nm 3 . The half-life of permanganate ions of the water containing permanganate ions of the present invention is 3 months or longer, for example, when the water filled in an airtight container under atmospheric pressure is stored under a temperature condition of 40°C, and has significantly different properties from a water containing permanganate ions that is produced by dissolving a permanganate compound in water, although the two waters share a common point of containing permanganate ions.
Abstract:
The disclosed invention consists of a water oxidation method, comprising the treatment of micropollutants in bromide-containing water with ozone and hydrogen peroxide in an ozonation reactor (1), reaching reproducible low and homogenously distributed ozone concentration in the ozonation reactor. This avoids any residual of ozone in solution and therefore BrO 3 - formation. This goal is reached by a controlled addition of hydrogen peroxide to the water in a first step. The solution is then introduced in a multiplicity of hollow fiber membranes (20) permeable to gas, extended along the inner space (10) of the ozonation reactor (1). In parallel, ozone is added from the ozone filled inner space (10) of the ozonation reactor (1) with a controlled concentration (partial pressure?) through the hollow fiber membrane walls (200) in a homogenously distributed way without gas bubbles into the fiber compartments (201) carrying the water/hydrogen peroxide solution with an adjustable flow rate all along the entire hollow fiber membrane length (L).
Abstract:
An object of the present invention is to provide a water containing permanganate ions that exist stably over a long period of time and a method for producing the water. A water containing permanganate ions of the present invention as a means for resolution is produced by dissolving 0.1 µM to 1 mM of a divalent manganese compound, 0.1 µM to 1 mM of an organic iron compound, and 1 to 300 mM of an inorganic salt in a water with ozone-microbubbles generated using an ozone gas at a concentration of 1 to 300 g/Nm 3 . The half-life of permanganate ions of the water containing permanganate ions of the present invention is 3 months or longer, for example, when the water filled in an airtight container under atmospheric pressure is stored under a temperature condition of 40°C, and has significantly different properties from a water containing permanganate ions that is produced by dissolving a permanganate compound in water, although the two waters share a common point of containing permanganate ions.