Abstract: A microbicidal purification device eliminating dead areas where ultraviolet light does not reach and sterilization does not take place, the device includes a first header and a second header, each header has a header space, the first header has an inlet port and a plurality of tubes, and the second header having an outlet port; a plurality of tubes which are cylindrical tube assemblies both ends of each of which are open and are arranged in parallel with the plurality of tubes of the first header so that the opening of each of the both ends can be connected with the header space of the first header and the header space of the second header in parallel where a plurality of ultraviolet lamp is inserted into each of the plurality of tubes.

Abstract: An ultraviolet ray sterilizer for a water pipe and a waterway featuring a plurality of circular flow ways that are formed, and an ultraviolet lamp is provided at the center of the flow ways, thus removing a sterilization dead zone where sterilization is not performed.

Abstract: An ultraviolet ray sterilizer for a water pipe and a waterway featuring a plurality of circular flow ways that are formed, and an ultraviolet lamp is provided at the center of the flow ways, thus removing a sterilization dead zone where sterilization is not performed.

Abstract: The present invention relates to a gas-collection-type gas-liquid reaction device, and to a water treatment apparatus and gas purification apparatus using same. More particularly, the present invention relates to a gas-collection-type gas-liquid reaction device which can reduce the costs, such as installation costs and operation costs, of a water treatment apparatus and gas-cleaning apparatus by improving reaction efficiency through an increase in contact time between a gas and liquid, wherein gas and liquid materials are fed through an upper inlet of the gas-liquid reaction device, and a relatively lightweight gas collected from an upper space of the gas-liquid reaction device can react with a liquid fed and sprayed into an upper portion over a predetermined period of time until the gas is discharged through a lower outlet of the gas-liquid reaction device.

Abstract: The present invention relates to a microbicidal purification device employing ultraviolet light from which ultraviolet-light-irradiation dead areas have been eliminated, and more specifically relates to a microbicidal purification device employing ultraviolet light from which ultraviolet-light-irradiation dead areas have been eliminated which is able to eliminate ultraviolet-light-irradiation dead areas where ultraviolet light does not reach and sterilization does not take place, by positioning quartz tubes, into which ultraviolet lamps have been inserted, inside a plurality of cylindrical pipes connected to headers.