KR-20260067649-A - RADIATION IRRADIATION DEVICE, SEWAGE SLUDGE TREATMENT METHOD USING THE SAME, AND SEWAGE SLUDGE TREATMENT FACILITY INCLUDING THE SAME

KR20260067649AKR 20260067649 AKR20260067649 AKR 20260067649AKR-20260067649-A

Abstract

The present invention relates to a radiation irradiation device for irradiating sewage sludge with radiation and a sewage sludge treatment method using the same.

Inventors

민철희
이태권
이수민
정인재
이무선

Assignees

연세대학교 미래산학협력단
한국수력원자력 주식회사

Dates

Publication Date: 20260513
Application Date: 20241106

Claims (15)

In a radiation irradiation device for irradiating sewage sludge with radiation, A radiation irradiation unit that irradiates radiation onto untreated sludge loaded inside the above-mentioned radiation irradiation device; A sludge supply unit disposed at one side of the radiation irradiation unit and supplying the untreated sludge to the radiation irradiation unit; and A radiation-treated sludge storage unit disposed on the other side of the radiation irradiation unit and storing sludge that has been radiation-treated in the radiation irradiation unit; Includes, The above radiation irradiation unit includes a plurality of radiation sources that emit the radiation inside, and The cross-sectional area of the above-mentioned sludge supply unit is configured to be small in one direction and large in the other direction, and A radiation irradiation device having a cross-sectional area of the radiation treatment sludge storage section configured to be large in one direction and small in the other direction.
In Article 1, A radiation irradiation device in which the radiation sources disposed inside the radiation irradiation section are arranged in a structure in which each radiation source is placed in contact with 2 to 6 others.
In Article 2, A radiation irradiation device in which the center of the arrangement structure of the radiation source above coincides with the center of the radiation irradiation section above.
In Article 2, A radiation irradiation device in which the arrangement structure of the radiation source above is such that the radiation source is arranged in 3 to 5 rows.
In Article 1, A radiation irradiation device in which the effective depth at which the sludge is irradiated by the above radiation source is 25% to 75% of the sum of the height of the radiation irradiation section and the height of the radiation-treated sludge storage section.
In Article 5, A radiation irradiation device in which the amount of sludge treated by radiation per hour in the radiation irradiation unit is determined by including the width direction length, length direction length, effective water depth, the number of radiation sources, and combinations thereof.
In Article 6, A radiation irradiation device in which the total amount of radioactivity emitted from the radiation irradiation part is 10⁵ Ci to 10⁶ Ci.
In Article 7, A radiation irradiation device in which the radiation sources are provided such that the product of the number of radiation sources and the amount of radioactivity emitted from one of the radiation sources is constant.
In Article 1, A radiation irradiation device wherein the cross-sections of the radiation irradiation unit, the sludge supply unit, and the radiation treatment sludge storage unit each independently comprise a shape selected from the group consisting of a square, a rectangle, a polygon, a circle, an ellipse, and combinations thereof.
In Article 1, A radiation irradiation device in which the above radiation source includes Co-60.
A method for treating sewage sludge using a radiation irradiation device according to any one of claims 1 to 10, A step of supplying sludge to a radiation irradiation unit through a sludge supply unit; A step of treating the sludge with radiation through a plurality of sources disposed in the radiation irradiation unit; and A step of storing the above radiation-treated sludge in a radiation-treated sludge storage unit; including, Sewage sludge treatment method.
In Article 11, A sewage sludge treatment method in which the weight of the sludge is reduced by the above radiation treatment.
In Article 11, A sewage sludge treatment method in which the amount of microorganisms in the sludge is reduced by the above radiation treatment.
A radiation treatment device according to any one of claims 1 to 10; A sewage treatment plant that supplies sludge to the above-mentioned radiation treatment device; and A sludge resource recovery device for processing sewage sludge radiated in the above radiation treatment device; including, Sewage sludge treatment facility.
In Article 14, The above-mentioned sludge resource recovery device is a sewage sludge treatment facility that treats the radiation-treated sewage sludge using a technique selected from the group consisting of fertilizer production, methanation, fuel production, and combinations thereof.

Description

Radiation Irradiation Device, Sewage Sludge Treatment Method Using the Same, and Sewage Sludge Treatment Facility Including the Same The present invention relates to a radiation irradiation device, a sewage sludge treatment method using the same, and a sewage sludge treatment facility including the same. Sewage sludge is a precipitate generated during sewage treatment or water purification processes. It is a waste product that is difficult to treat because it contains a large amount of organic matter and has a high moisture content, making it prone to decay. The aforementioned sewage sludge is generated during the process of treating various types of sewage, such as domestic sewage, medical wastewater, and industrial wastewater. These sewage sludges have been disposed of through landfill or incineration, but due to concerns about environmental pollution, research is being conducted to recycle them as solid fuel, biomass, or fertilizer. The technology forming the background of the present invention is disclosed in Korean Registered Patent Publication No. 10-00996382. The aforementioned registered patent does not recognize a method of removing pathogenic microorganisms or pollutants by irradiating wastewater with radiation, or a method of treating sludge. FIGS. 1a and FIGS. 1b are schematic diagrams of a radiation irradiation device according to one embodiment of the present invention. Figure 2 is a schematic diagram of a conventional radiation irradiation device. FIG. 3 is a schematic diagram of a radiation irradiation device according to one embodiment of the present invention. FIG. 4 is a flowchart of a sewage sludge treatment method according to one embodiment of the present invention. FIG. 5 is a schematic diagram of a radiation irradiation device according to one embodiment of the present invention. Below, embodiments of the present invention are described in detail with reference to the attached drawings so that those skilled in the art can easily implement them. However, the present invention may be implemented in various different forms and is not limited to the embodiments described herein. Furthermore, in order to clearly illustrate the present invention in the drawings, parts unrelated to the description have been omitted, and similar parts throughout the specification have been given similar reference numerals. Throughout this specification, when a part is described as being "connected" to another part, this includes not only cases where they are "directly connected," but also cases where they are "electrically connected" with other elements interposed between them. Throughout the entire specification, when a component is described as being located "on," "on top," "on top," "under," "on bottom," or "on bottom" of another component, this includes not only cases where the component is in contact with the other component but also cases where another component exists between the two components. Throughout this specification, when a part is described as "comprising" a certain component, this means that, unless specifically stated otherwise, it does not exclude other components but may include additional components. Hereinafter, a radiation irradiation device according to one embodiment and example of the present invention, a sewage sludge treatment method using the same, and a sewage sludge treatment facility including the same will be described. As a technical means for achieving the above-mentioned technical problem, the first aspect of the present invention relates to a radiation irradiation device for irradiating sewage sludge, comprising: a radiation irradiation unit (110) for irradiating untreated sludge loaded inside the radiation irradiation device; a sludge supply unit (120) disposed in one direction of the radiation irradiation unit (110) and supplying the untreated sludge to the radiation irradiation unit (110); and a radiation-treated sludge storage unit (130) disposed in the other direction of the radiation irradiation unit (110) and storing sludge that has been radiation-treated by the radiation irradiation unit (110). The invention relates to a radiation irradiation device comprising, wherein the radiation irradiation unit (110) comprises a plurality of radiation sources (111) that emit radiation inside, the cross-sectional area of the sludge supply unit (120) is configured to be small in one direction and large in the other direction, and the cross-sectional area of the radiation treatment sludge storage unit (130) is configured to be large in one direction and small in the other direction. FIGS. 1a and 1b are schematic diagrams of a radiation irradiation device according to one embodiment of the present invention, and FIG. 2 is a schematic diagram of a conventional radiation irradiation device. Specifically, FIG. 1a is a front view of a radiation irradiation device, FIG. 1b is a perspective view, and FIG. 3 and 5, which will be described later, are front views of a radiation irradiati