KR101522319B1 - Combined liquid radioactive waste treatment system with DAF(Dissolved Air Flotation) and moblie submerged membrane process - Google Patents

Combined liquid radioactive waste treatment system with DAF(Dissolved Air Flotation) and moblie submerged membrane process Download PDF

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KR101522319B1
KR101522319B1 KR1020130156540A KR20130156540A KR101522319B1 KR 101522319 B1 KR101522319 B1 KR 101522319B1 KR 1020130156540 A KR1020130156540 A KR 1020130156540A KR 20130156540 A KR20130156540 A KR 20130156540A KR 101522319 B1 KR101522319 B1 KR 101522319B1
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tank
dissolved air
air
floating
pressurized floating
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이지훈
조항래
박승철
김학수
박지은
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한국수력원자력 주식회사
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    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/04—Treating liquids
    • G21F9/06—Processing
    • G21F9/10—Processing by flocculation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/005—Separating solid material from the gas/liquid stream
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/005—Separating solid material from the gas/liquid stream
    • B01J8/006—Separating solid material from the gas/liquid stream by filtration

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  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Physical Water Treatments (AREA)

Abstract

The purpose of the present invention is to provide a combined radioactive liquid waste treatment system with a dissolved air flotation method and a movable submerged membrane to be easily replaced and a method thereof, capable of preventing a radiation exposure to a worker and an air pollution by recycling fine air by collecting the generated fine air again. To achieve the purpose, the combined radioactive liquid waste treatment system with the dissolved air flotation method and the movable submerged membrane to be easily replaced according to the present invention includes a chemical mixing bath, a dissolved air flotation bath, the movable submerged membrane, an air bubble diffusing system, a treatment water pump, a skimmer, and a sludge concentration bath. A pressure tank is connected to the dissolved air floatation bath. The pressure tank generates the fine air by collecting the air generated in the dissolved air flotation bath and an air compressor.

Description

가압부상법과 막교체가 용이한 이동식 침지막 복합 방사성 폐액 처리시스템 및 방법{Combined liquid radioactive waste treatment system with DAF(Dissolved Air Flotation) and moblie submerged membrane process}BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a radioactive waste disposal system and a mobile submerged membrane treatment method,

본 발명은 가압부상법과 막교체가 용이한 이동식 침지막 복합 방사성 폐액 처리시스템 및 방법에 관한 것으로, 특히 고정식 용존공기가압부상조와 이동식 침지막으로 구성되는 가압부상법과 막교체가 용이한 이동식 침지막 복합 방사성 폐액 처리시스템 및 방법에 관한 것이다.The present invention relates to a pressurized floating method and a system and a method for treating a mobile immersion membrane complex radioactive waste solution which is easy to replace a membrane. More particularly, the present invention relates to a pressurized floating method composed of a fixed-type air pressurized floating vessel and a movable immersion membrane, And more particularly, to a system and a method for treating a radioactive waste solution.

일본국 후쿠시마 원자력 발전소 사고가 발생한 후 원자력 발전소 중대사고시 발생되는 폐액 처리에 대한 연구가 많이 이루어질 뿐만 아니라 다양한 방법이 적용되고 있다.There are many researches on the treatment of waste liquid generated in the nuclear power plant after the accident of Fukushima Nuclear Power Plant in Japan, and various methods have been applied.

원자력 발전소 중대사고 등 비상시 원자로 온도가 상승하는 등의 위급상황이 발생하면 다량의 물을 사용하고, 이때 발생되는 방사성 폐액은 기름, 입자상 물질 및 해수 등 고염수를 함유한다.In case of an emergency such as an accident in nuclear power plant such as a serious accident such as a rise in reactor temperature, a large amount of water is used, and the radioactive waste generated at this time contains high salt water such as oil, particulate matter and seawater.

이러한 방사성 폐액을 처리 또는 냉각수로 순환 재이용하기 위하여 역삼투압 공정을 주요처리로 사용할 수 있다.In order to circulate and recycle these radioactive waste liquids as treatment or cooling water, a reverse osmosis process can be used as a main treatment.

이 경우, 역삼투막의 운전에 방해가 될 수 있는 물질을 사전에 제거할 수 있는 전처리 설비의 구축이 필요하다.In this case, it is necessary to construct a pretreatment facility that can remove substances that may interfere with the operation of the RO membrane.

전처리 공정은 기름이나 입자상 물질을 제거하여 역삼투압 공정에 보내는 역할을 한다.The pretreatment process removes oil or particulate matter and sends it to the reverse osmosis process.

종래에는 방사성 폐액의 다양한 전처리 방법(침전법, 가압부상법, 여과법 등)이 사용되고 있다.Conventionally, various pretreatment methods (precipitation method, pressurized floating method, filtration method, etc.) of a radioactive waste liquid have been used.

상기한 방사성 폐액의 전처리 방법중에서 가압부상법(DAF, Dissolved Air Flotation)은 원수에 응집제를 주입하며 공기와 물을 혼합한 후, 가압하여 발생한 미세공기를 이용하여 입자성 물질, 기름, 조류 등 오염물질을 제거하는데 사용된다.Among the pretreatment methods of radioactive waste liquids mentioned above, DAF (Dissolved Air Flotation) is a method in which coagulant is injected into raw water and air and water are mixed, and then fine air generated by pressurization is used to remove particulate matter, oil, It is used to remove material.

그리고 여과법중 역삼투압 공정의 오염 지수를 최소화하는 방법으로 한외여과막(UF)이 사용된다.And ultrafiltration membrane (UF) is used as a method to minimize contamination index of reverse osmosis process among filtration methods.

이와 같은 다양한 전처리 방법을 효율적이고, 작은 공간에서 사용하기 위한 노력이 많이 이루어지고 있다.Efforts have been made to use such various pretreatment methods efficiently and in a small space.

그 중에서 등록특허 10-1048623 침지형 분리막과 용존공기부상법을 이용한 융합형 정수처리장치가 제안되었다.Among them, a fusion type water treatment apparatus using an immersion type membrane and a dissolved air floating method has been proposed.

상기한 종래의 침지형 분리막과 용존공기부상법을 이용한 융합형 정수처리장치는 도 1에 도시된 바와 같이, 용존공기로부터 생성되는 미세기포를 통해 슬러지를 부상시켜 제거하는 용존공기부상법 이용 정수처리장치에 있어서, 원수에 포함된 불순물을 응집시키는 응집조(10)와; 상기 응집조(10)를 통과한 물이 경유하고, 수면으로 부상된 불순물이 제거된 용존공기부상조(20)와; 상기 응집지(10)의 물이 용존공기부상조(20)로 유입되는 지점에 미세기포를 발생시켜 물에 섞여 있는 불순물이 미세기포에 부착되어 용존공기부상조(20)의 수면으로 부상시키는 미세기포발생수단(30)과; 상기 용존공기부상조(20)의 하부에 설치된 침지형의 분리막(40)과; 상기 분리막(40)을 통과한 용존공기부상조(20)의 처리수가 유출되도록 설치된 정수관로(50)와; 상기 정수관로(50)를 흐리는 물이 선택적으로 역류시켜 분리막(40)에 부착된 불순물이 분리막(40)에서 분리되어 부상되는 역세수단(60)과; 상기 역세수단(60)을 사용하여 분리막(40)에서 불순물을 분리, 제거하는 역세를 실시할 때 분리막(40)의 하부에서 공기방울을 발생시킴으로써 공기의 전단력에 의해 역세척 효율이 향상되도록 분리막(40)의 하부에 공기방울발생장치(80)가 설치되며, 상기 역세척된 물이 용존공기부상조(20) 상부로 부상되어 불순물이 제거되도록 상기 역세수단(60)을 사용하여 분리막(40)에서 불순물을 분리, 제거하는 역세척을 실시할 때 미세기포를 발생시키는 노즐이 용존공기부상조(20)의 중층에 위치되어 역세척된 고형물을 미세기포에 부착시켜 용존공기부상조(20)의 상부로 부상 농축시켜 스키머(21)로 제거 후 탈수기(70)로 이동시켜 처리할 수 있으며, 원수가 응집조(10)로 유입되기 전 혼화조(4)를 경유하고, 혼화조(4)의 물이 응집조(10)로 유입되는 지점에 활성탄 분말을 투입하는 활성탄분말투입장치가 구비되고, 투입된 활성탄 분말이 용존공기부상조(20)의 상부에서 회수된 후 투입지점으로 공급되어 다시 투입하는 활성탄분말재공급장치가 구비된 것을 특징으로 한다.As shown in FIG. 1, the conventional fusion type water treatment apparatus using the immersion type separation membrane and the dissolved air flotation method includes a dissolved air flotation treatment water treatment apparatus for flushing sludge through fine bubbles generated from dissolved air, An agglomeration tank (10) for agglutinating impurities contained in raw water; A dissolved air floatation tank 20 through which water passing through the flocculation tank 10 passes and impurities floating on the water surface are removed; The microbubbles are generated at the point where the water of the aggregated paper 10 flows into the dissolved air floating tank 20 so that the impurities mixed in the water adhere to the microbubbles and float up to the water surface of the dissolved air floating tank 20. [ Bubble generating means (30); An immersion type separation membrane 40 installed at a lower portion of the dissolved air floating tank 20; A purified water pipe (50) installed to discharge the treated water of the dissolved air floating tank (20) that has passed through the separation membrane (40); A backwashing means 60 in which impurities adhering to the separation membrane 40 are selectively separated from the water flowing through the purified water path 50 and separated from the separation membrane 40 and floated; When backwashing is performed to remove and remove impurities from the separation membrane 40 using the backwashing means 60, air bubbles are generated in the lower portion of the separation membrane 40, thereby improving the backwashing efficiency by the shearing force of the air. And the backwashing water is floated on the upper portion of the dissolved air floating tank 20 to remove impurities and the backwashing means 60 is used to remove the separation membrane 40, A nozzle for generating fine bubbles is disposed in the middle layer of the dissolved air floating tank 20 to adhere the backwashed solid material to the fine bubbles to form a droplet of the dissolved air floating tank 20 The raw water is passed through the mixing tank 4 before the raw water is introduced into the flocculation tank 10 and the raw water is supplied to the mixing tank 4 through the mixing tank 4, At the point where water flows into the flocculation tank (10), activated carbon powder Stock is characterized in that the activated carbon powder having a material supply apparatus is provided with a carbon powder input device is turned on activated carbon powder, it is supplied to the input points and then recovered from the upper part of the dissolved air flotation tank 20 input again.

상기한 바와 같은 구성으로 이루어진 종래의 침지형 분리막과 용존공기부상법을 이용한 융합형 정수처리장치는 용존 공기부상법을 이용한 수처리의 전처리의 효과와 침지형 분리막 여과에 의한 수처리 효과를 동시에 얻을 수 있는 장점이 있있다.The fusion type water treatment apparatus using the conventional immersion type separation membrane and the dissolved air floating method having the above-described structure has the advantage of simultaneously obtaining the effect of the pretreatment of the water treatment using the dissolved air floating method and the water treatment effect by the immersion type membrane filtration I know.

그러나, 상기한 바와 같은 종래의 침지형 분리막과 용존공기부상법을 이용한 융합형 정수처리장치는 다음과 같은 문제점이 있다.However, the conventional fusion type water treatment apparatus using the immersion type separation membrane and the dissolved air floating method have the following problems.

첫째, 종래의 융합형 정수처리장치는 용존공기부상조 내에 있는 침지형 분리막을 꺼내는 데 많은 시간이 소요되므로 일반 정수시설용 장치에서는 크게 문제가 되지 않지만 원자력발전소에서는 침지형 분리막과 용존공기부상법을 이용한 융합형 정수처리장치를 적용하기에는 사실상 어려운 문제가 있다.First, since the conventional fusion water treatment apparatus takes a long time to take out the immersed separator in the dissolved air floating tank, it is not a serious problem in a general water purification system. However, in the nuclear power plant, the immersion type separation membrane and the fusion type There are actually difficult problems in applying the water treatment apparatus.

둘째, 종래의 융합형 정수처리장치는 원자력 발전소 비상 상황이나 중대 사고시에는 처리하는 폐액에 방사성 물질이 많이 존재하고 있어서, 작업자가 용존공기부상조 내에 있는 침지형 분리막을 꺼내고, 다시 다른 침지형 분리막으로 교체하여 투입하는 동안 방사성 물질에 많이 피폭되는 문제가 있다.Secondly, in the conventional fusion water treatment apparatus, there is a lot of radioactive material in the waste liquid to be treated in an emergency situation or a serious accident of a nuclear power plant, so that the operator removes the immersed separator in the dissolved air floating tank and replaces it with another immersed separator There is a problem that a large amount of radioactive material is exposed during the application.

셋째, 종래의 융합형 정수처리장치는 공기부상에 의하여 발생되는 오존이나 공기에 방사성 물질이 포함되어 있어 대기중으로 방사성 물질이 방출되면 대기가 방사능으로 오염될 가능성도 있다.Third, in the conventional fusion water treatment apparatus, radioactive material is contained in ozone or air generated by air levitation, so that if the radioactive material is released into the atmosphere, the atmosphere may be contaminated with radioactivity.

따라서 침지형 분리막을 꺼낼 때 작업자의 피폭시간을 줄이고 안전하게 처리할 수 있는 공정 및 방법의 필요성이 제기되고 있는 실정이다.Therefore, there is a need for a process and a method that can reduce the exposure time of a worker and safely treat the worker when taking out the submerged membrane.

등록특허 10-1048623[0011]

이에, 본 발명은 상기한 바와 같은 제문제점을 해결하기 위해 안출된 것으로, 용존공기가압부상조와 이동식 침지막을 사용하여 교체 시간을 최소화시켜 작업자의 피폭을 방지하고, 발생된 미세공기를 다시 포집하여 재활용함으로써 대기 오염을 방지하도록 한 가압부상법과 막교체가 용이한 이동식 침지막 복합 방사성 폐액 처리시스템 및 방법을 제공하는데 그 목적이 있다.SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a method and apparatus for minimizing replacement time by using a dissolved air pressurized floating vessel and a mobile immersion membrane, The present invention also provides a system and a method for treating a radioactive waste liquid,

상기한 목적을 달성하기 위한 본 발명에 따른 가압부상법과 막교체가 용이한 이동식 침지막 복합 방사성 폐액 처리시스템은 방사성 폐액과 응집제를 혼합하는 약품혼화조와; 상기 약품혼화조를 통과한 물이 경유됨과 동시에 수면상에 부상된 불순물이 제거되는 용존공기가압부상조와; 상기 용존공기가압부상조의 하부에 배치되는 이동식 침지막과; 상기 이동식 침지막의 하부에 배치되어 미세기포를 발생시켜 물에 섞여 있는 불순물을 부상시키는 기포산기관과; 상기 이동식 침지막을 통과한 처리수를 유출시키도록 설치된 처리수펌프와; 상기 용존공기가압부상조의 외측에 배치되며, 용존공기가압부상조에 부상된 불순물을 제거하는 스키머와; 상기 스키머에 의해 불순물이 제거된 슬러지를 농축시키는 슬러지농축조로 구성되고, 상기 용존공기가압부상조에는 가압탱크가 연결되며, 상기 가압탱크는 공기압축기와 용존공기가압부상조에서 발생된 공기를 회수하여 미세공기를 발생시키도록 구성되며, 상기 이동식 침지막은 용존공기가압부상조와 연결잭 및 퀵커플링으로 연결되며, 상기 이동식 침지막의 상단에 아이볼트 및 플렉시블헤더가 연결됨을 특징으로 한다. According to an aspect of the present invention, there is provided a system for treating radioactive waste solution, comprising: a chemical mixing tank for mixing a radioactive waste solution and a flocculant; A dissolved air pressurized floating vessel through which the water passed through the chemical mixing tank is passed and the floating impurities are removed from the water surface; A movable immersion membrane disposed below the dissolved air pressurized floating tank; A bubble diffuser disposed at a lower portion of the mobile immersion membrane to generate fine bubbles to float impurities mixed in water; A treatment water pump provided so as to discharge treated water that has passed through the mobile immersion membrane; A skimmer disposed on the outside of the dissolved air pressurized floating tank to remove impurities floating in the dissolved air pressurized floating tank; And a sludge concentration tank for concentrating the sludge from which impurities have been removed by the skimmer, wherein the pressurized tank is connected to the dissolved air pressurized floating tank, and the pressurized tank collects the air generated in the air compressor and the pressurized floating- Wherein the movable immersion membrane is connected to a dissolved air pressurized floating vessel, a connection jack and a quick coupling, and an eye bolt and a flexible header are connected to an upper end of the movable immersion membrane.

또한, 상기한 목적을 달성하기 위한 본 발명에 따른 방사성 폐액 처리방법은 방사성 폐액과 응집제를 혼합하는 약품혼화조와; 상기 약품혼화조를 통과한 물이 경유됨과 동시에 수면상에 부상된 불순물이 제거되는 용존공기가압부상조와; 상기 용존공기가압부상조의 하부에 배치되는 이동식 침지막과; 상기 이동식 침지막의 하부에 배치되어 미세기포를 발생시켜 물에 섞여 있는 불순물을 부상시키는 기포산기관과; 상기 이동식 침지막을 통과한 처리수를 유출시키도록 설치된 처리수펌프와; 상기 용존공기가압부상조의 외측에 배치되며, 용존공기가압부상조에 부상된 불순물을 제거하는 스키머와; 상기 스키머에 의해 불순물이 제거된 슬러지를 농축시키는 슬러지농축조로 구성되고, 상기 용존공기가압부상조에는 가압탱크가 연결되며, 상기 가압탱크는 공기압축기와 용존공기가압부상조에서 발생된 공기를 회수하여 미세공기를 발생시키도록 구성되며, 상기 이동식 침지막은 용존공기가압부상조와 연결잭 및 퀵커플링으로 연결되며, 상기 이동식 침지막의 상단에 아이볼트 및 플렉시블헤더가 연결된 가압부상법과 막교체가 용이한 이동식 침지막 복합 방사성 폐액 처리시스템을 통해 방사성 폐액을 처리함을 특징으로 한다.According to another aspect of the present invention, there is provided a method of treating a radioactive waste solution, comprising: mixing a radioactive waste solution and a flocculant; A dissolved air pressurized floating vessel through which the water passed through the chemical mixing tank is passed and the floating impurities are removed from the water surface; A movable immersion membrane disposed below the dissolved air pressurized floating tank; A bubble diffuser disposed at a lower portion of the mobile immersion membrane to generate fine bubbles to float impurities mixed in water; A treatment water pump provided so as to discharge treated water that has passed through the mobile immersion membrane; A skimmer disposed on the outside of the dissolved air pressurized floating tank to remove impurities floating in the dissolved air pressurized floating tank; And a sludge concentration tank for concentrating the sludge from which impurities have been removed by the skimmer, wherein the pressurized tank is connected to the dissolved air pressurized floating tank, and the pressurized tank collects the air generated in the air compressor and the pressurized floating- Wherein the movable immersion membrane is connected to a dissolved air pressurized floating vessel, a connection jack and a quick coupling, and a pressurized floating method in which an eye bolt and a flexible header are connected to an upper portion of the movable immersion membrane, Characterized in that the radioactive waste liquid is treated through a membrane composite radioactive waste liquid treatment system.

이상에서 설명한 바와 같이, 본 발명에 따른 가압부상법과 막교체가 용이한 이동식 침지막 복합 방사성 폐액 처리시스템 및 방법은 다음과 같은 효과가 있다.INDUSTRIAL APPLICABILITY As described above, the pressurized floating method according to the present invention and the mobile immersion membrane complex radioactive waste liquid treatment system and method with easy membrane replacement have the following effects.

첫째, 본 발명은 이동식 침지막이 용존공기가압부상조 내에 있지 않고, 별도의 이동식 침지막을 사용하고 이동식 침지막이 용존공기가압부상조 외부에 설치되어 있어, 작업자가 작업시 방사성 물질에 의한 피폭을 최소화시킬 수 있는 이점이 있다.First, in the present invention, since the mobile immersion membrane is not in the dissolved air pressurized floating vessel and a separate immersion membrane is used and the mobile immersion membrane is installed outside the dissolved air pressurized floating vessel, the operator can minimize the exposure There is an advantage to be able to.

둘째, 본 발명은 이동식 침지막을 아이볼트와 플렉시블헤더 등을 용이하게 사용하여 신속하게 용존공기가압부상조와의 분리가 가능하므로 작업자의 방사성 피폭을 저감시키는 이점이 있다.Second, since the movable immersion membrane can be easily separated from the dissolved air pressurized floating vessel by using the eyepoint and the flexible header easily, there is an advantage of reducing the radiation exposure of the operator.

셋째, 본 발명은 용존공기가압부상조에서 발생하는 대기중으로 나가는 기포는 포집하여 가압탱크에서 보내어 재사용함으로써 대기 오염을 방지할 수 있는 이점이 있다.Third, the present invention is advantageous in that air bubbles which are generated in a dissolved air pressurized flotation tank are collected in the atmosphere and sent from a pressurized tank to be reused, thereby preventing air pollution.

도 1은 종래의 침지형 분리막과 용존공기부상법을 이용한 융합형 정수처리장치를 도시한 개략도,
도 2는 본 발명에 따른 가압부상법과 막교체가 용이한 이동식 침지막 복합 방사성 폐액 처리시스템을 도시한 개략도.BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing a conventional immersion type separation membrane and a fusion type water treatment apparatus using a dissolved air floating method;
FIG. 2 is a schematic view showing a pressurized floating method according to the present invention and a mobile immersion membrane complex radioactive waste liquid treatment system which is easy to replace a membrane. FIG.

이하, 본 발명을 첨부한 예시도면을 참조하여 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명에 따른 가압부상법과 막교체가 용이한 이동식 침지막 복합 방사성 폐액 처리시스템을 도시한 개략도이다.FIG. 2 is a schematic view showing a pressurized floating method according to the present invention and a mobile immersion membrane complex radioactive waste liquid treatment system which is easy to replace a membrane.

이 도면에 도시된 바와 같이, 본 발명에 따른 가압부상법과 막교체가 용이한 이동식 침지막 복합 방사성 폐액 처리시스템(A)은 방사성 폐액과 응집제를 혼합하는 약품혼화조(100)와; 상기 약품혼화조(100)를 통과한 물이 경유됨과 동시에 수면상에 부상된 불순물이 제거되는 용존공기가압부상조(110)와; 상기 용존공기가압부상조(110)의 하부에 배치되는 이동식 침지막(120)과; 상기 이동식 침지막(120)의 하부에 배치되어 미세기포를 발생시켜 물에 섞여 있는 불순물을 부상시키는 기포산기관(130)과; 상기 이동식 침지막(120)을 통과한 처리수를 유출시키도록 설치된 처리수펌프(140)와; 상기 용존공기가압부상조(110)의 외측에 배치되며, 용존공기가압부상조(110)에 부상된 불순물을 제거하는 스키머(150)와; 상기 스키머(150)에 의해 불순물이 제거된 슬러지를 농축시키는 슬러지농축조(160)로 구성된다.As shown in this drawing, the pressurized floating method according to the present invention and the mobile immersion membrane complex radioactive waste solution treatment system (A), which is easy to replace the membrane, include a chemical admixture tank 100 for mixing a radioactive waste solution and a flocculant; A dissolved air pressurized floating vessel 110 in which water passing through the chemical admixture tank 100 is dewatered and impurities floating on the water surface are removed; A movable immersion membrane 120 disposed under the dissolved air pressurized floating vessel 110; A bubble diffusing pipe 130 disposed below the mobile immersion membrane 120 to generate micro bubbles to float impurities in the water; A treated water pump 140 installed to discharge treated water that has passed through the mobile immersion membrane 120; A skimmer 150 disposed on the outside of the dissolved air pressurized floating tank 110 to remove impurities floating in the dissolved air pressurized floating tank 110; And a sludge thickener 160 for concentrating the sludge from which the impurities have been removed by the skimmer 150.

즉, 본 발명에 따른 가압부상법과 막교체가 용이한 이동식 침지막 복합 방사성 폐액 처리시스템(A)은 약품혼화조(100), 용존공기가압부상조(110), 이동식 침지막(120), 기포산기관(130), 처리수펌프(140), 스키머(150) 및 슬러지농축조(160)가 유기적으로 결합되어 이루어진 시스템이다.That is, the pressurized floating method according to the present invention and the mobile immersion membrane complex radioactive waste liquid treatment system (A), which is easy to replace the membrane, can be applied to the chemical mixing tank 100, the dissolved air pressurized floating tank 110, the mobile immersion membrane 120, A treatment water pump 140, a skimmer 150 and a sludge thickening tank 160 are organically combined.

여기서, 상기 약품혼화조(100)는 방사성 폐액과 응집제를 혼합하는 처리조이다.Here, the chemical admixture tank 100 is a treatment tank for mixing the radioactive waste liquid and the flocculant.

또한, 상기 용존공기가압부상조(110)는 약품혼화조(100)를 통과한 물이 경유됨과 동시에 수면상에 부상된 불순물이 제거되는 처리조이다.The dissolved air pressurized floating tank 110 is a treatment tank in which water passing through the chemical admixture tank 100 is dewatered and impurities floating on the water surface are removed.

그리고, 상기 이동식 침지막(120)은 용존공기가압부상조(110) 하부에 배치된다.The mobile immersion membrane 120 is disposed below the dissolved air pressurized floating vessel 110.

또한, 상기 기포산기관(130)은 이동식 침지막(120)의 하부에 배치되어 미세기포를 발생시켜 물에 섞여 있는 불순물을 부상시킨다.The bubble diffuser 130 is disposed below the mobile immersion membrane 120 to generate fine bubbles to float the impurities contained in the water.

그리고, 상기 처리수펌프(140)는 이동식 침지막(120)을 통과한 처리수를 유출시키도록 설치된 부재이다.The treatment water pump 140 is a member provided so as to discharge treated water that has passed through the mobile immersion membrane 120.

또한, 상기 스키머(150)는 용존공기가압부상조(110)의 외측에 배치되며, 용존공기가압부상조(110)에 부상된 불순물을 제거한다.The skimmer 150 is disposed outside the dissolved air pressurized floating vessel 110 to remove impurities floating in the dissolved air pressurized floating vessel 110.

그리고, 상기 슬러지농축조(160)는 스키머(150)에 의해 불순물이 제거된 슬러지를 농축시키는 처리조이다.The sludge concentration tank 160 is a treatment tank for concentrating the sludge from which the impurities have been removed by the skimmer 150.

또한, 상기 용존공기가압부상조(110)에는 가압탱크(170)가 연결되며, 상기 가압탱크(170)는 공기압축기(180)와 용존공기가압부상조(110)에서 발생된 공기를 회수하여 미세공기를 발생시키도록 구성된다.A pressurized tank 170 is connected to the dissolved air pressurized floating tank 110. The pressurized tank 170 recovers air generated from the air compressor 180 and the dissolved air pressurized floating tank 110, And is configured to generate air.

그리고, 상기 이동식 침지막(120)은 용존공기가압부상조(110)와 연결잭(190) 및 퀵커플링(200)으로 연결된다.The mobile immersion membrane 120 is connected to the dissolved air pressurized floating vessel 110, the connection jack 190, and the quick coupling 200.

또한, 상기 이동식 침지막의 상단에 아이볼트(210) 및 플렉시블헤더(220)가 연결된다.In addition, an eye bolt 210 and a flexible header 220 are connected to an upper end of the mobile immersion film.

상기한 바와 같은 구성으로 이루어진 본 발명에 따른 가압부상법과 막교체가 용이한 이동식 침지막 복합 방사성 폐액 처리시스템(A)은 방사성 폐액과 응집제를 혼합하는 약품혼화조(100)와 가압탱크(170)에서 발생된 미세공기를 이용하여 오염물질을 제거하는 용존공기가압부상조(110) 그리고 이동식 침지막(120)으로 구성된다.The pressurized floating method according to the present invention having the above-described configuration and the mobile immersion membrane complex radioactive waste liquid treatment system (A) capable of easily replacing the membrane have a chemical mixing tank (100) for mixing the radioactive waste solution and the flocculant, And a mobile immersion membrane 120. The immersion air pressurized floating vessel 110 removes contaminants by using the fine air generated in the mobile immersion membrane 120.

여기서, 상기 가압탱크(170)는 미세공기를 발생시키는 것으로, 공기압축기(180)와 용존공기가압부상조(110)에서 발생하는 공기를 회수하여 미세공기를 발생시킨다.Here, the pressurizing tank 170 generates fine air, and recovers air generated from the air compressor 180 and the dissolved air pressurized floating vessel 110 to generate fine air.

또한, 상기 이동식 침지막(120)은 연결잭(190)에 의하여 용존공기가압부상조(110)와 연결되어 움직이지 않는다.In addition, the mobile immersion membrane 120 is connected to the dissolved air pressurized floating vessel 110 by the connection jack 190 and does not move.

그리고, 상기 용존공기가압부상조(110)와 이동식 침지막(120)은 퀵커플링(200)으로 연결되어 빠른 연결과 분해가 가능하며, 이동식 침지막(120)은 아이볼트(210)와 연결되어 있다.The immersion air pressurized floating vessel 110 and the mobile immersion membrane 120 are connected to each other by a quick coupling 200 so that quick connection and disassembly are possible and the mobile immersion membrane 120 is connected to the eye bolt 210 .

특히, 상기 아이볼트(210)는 위아래에 머리가 달려있어 탈부착이 매우 용이하다.Particularly, the eye bolt 210 has a head up and down, and is easily detachable.

상기한 이동식 침지막(120)은 처리수펌프(140)와 연결되어 처리수를 생산하는데 처리수펌프(140)와 이동식 침지막(120) 사이에는 플렉시블헤더(220)가 연결되어 아이볼트(210)를 풀거나 고정시에 유동성을 부여하여 신속한 탈부착이 가능하다.The movable immersion membrane 120 is connected to the treatment water pump 140 to produce treated water. A flexible header 220 is connected between the treatment water pump 140 and the immersion membrane 120, ) Is loosened and fluidity is imparted at the time of fixing, so that quick detachment and attachment is possible.

아울러 용존공기가압부상조(110)와 이동식 침지막(120)의 분리는 퀵커플링(200)을 제거하고, 아이볼트(210)를 분리시킨 후, 플렉시블헤더(220)를 탈거하는 순으로 이동식 침지막(120) 제거가 가능하며, 이에 따른 방사성 피폭을 최소화할 수 있다.In order to separate the dissolved air pressurized floating vessel 110 and the mobile immersion membrane 120 from each other, the quick coupler 200 is removed, the eyebolts 210 are separated, and then the flexible header 220 is removed. It is possible to remove the immersion film 120, thereby minimizing the radioactive exposure.

따라서, 본 발명에 따른 가압부상법과 막교체가 용이한 이동식 침지막 복합 방사성 폐액 처리시스템 및 방법은 이동식 침지막(120)이 용존공기가압부상조(110) 내에 위치하지 않고, 별도로 퀵커플링(200)을 매개로 외부에 설치되어 있으므로 작업자가 작업시 방사성 물질에 의한 피폭을 최소화할 수 있다.Therefore, the pressurized floating method according to the present invention and the mobile immersion membrane complex radioactive waste liquid treatment system and method which can easily replace the membrane can be carried out by a simple coupling (not shown) in which the mobile immersion membrane 120 is not located in the dissolved air pressurized floating tank 110 200), the worker can minimize the exposure caused by the radioactive material during the work.

또한, 상기 이동식 침지막(120)을 아이볼트(210)와 플렉시블헤더(220) 등을 사용하여 용이하고, 신속하게 용존공기가압부상조(110)와 분리가 가능하므로 작업자의 방사성 피폭을 저감시킬 수 있다.Since the movable immersion membrane 120 can be separated from the dissolved air pressurized floating vessel 110 easily and quickly using the eye bolts 210 and the flexible headers 220 or the like, the radiation exposure of the operator can be reduced .

그리고, 상기 용존공기가압부상조(110)에서 발생되어 대기중으로 나가는 기포는 포집하여 가압탱크(170)에 보내어 재사용함으로써 대기오염을 방지할 수 있는 작용효과가 있다.The air bubbles generated in the dissolved air pressurized floating tank (110) are discharged to the pressurizing tank (170) to be collected and reused, thereby preventing air pollution.

100: 약품혼화조 110: 용존공기가압부상조
120: 이동식 침지막 130: 기포산기관
140: 처리수펌프 150: 스키머
160: 슬러지농축조 170: 가압탱크
180: 공기압축기 190: 연결잭
200: 퀵커플링 210: 아이볼트
220: 플렉시블헤더 230: 세정라인
240: 물공급펌프 250: 공기재이용 라인
A: 가압부상법과 막교체가 용이한 이동식 침지막 복합 방사성 폐액 처리시스템100: chemical mixing tank 110: dissolved air pressurized floating tank
120: Portable immersion membrane 130:
140: treated water pump 150: skimmer
160: sludge concentration tank 170: pressure tank
180: air compressor 190: connection jack
200: quick coupling 210: eye bolt
220: Flexible header 230: Cleaning line
240: water supply pump 250: air recycle line
A: Combined radioactive waste liquid treatment system with pressurized floatation method and easy to replace membrane

Claims (5)

방사성 폐액과 응집제를 혼합하는 약품혼화조(100)와; 상기 약품혼화조(100)를 통과한 물이 경유됨과 동시에 수면상에 부상된 불순물이 제거되는 용존공기가압부상조(110)와; 상기 용존공기가압부상조(110)의 하부에 배치되는 이동식 침지막(120)과; 상기 이동식 침지막(120)의 하부에 배치되어 미세기포를 발생시켜 물에 섞여 있는 불순물을 부상시키는 기포산기관(130)과; 상기 이동식 침지막(120)을 통과한 처리수를 유출시키도록 설치된 처리수펌프(140)와; 상기 용존공기가압부상조(110)의 외측에 배치되며, 용존공기가압부상조(110)에 부상된 불순물을 제거하는 스키머(150)와; 상기 스키머(150)에 의해 불순물이 제거된 슬러지를 농축시키는 슬러지농축조(160)로 구성되고, 상기 용존공기가압부상조(110)에는 가압탱크(170)가 연결되며, 상기 가압탱크(170)는 공기압축기(180)와 용존공기가압부상조(110)에서 발생된 공기를 회수하여 미세공기를 발생시키도록 구성되며, 상기 이동식 침지막(120)은 용존공기가압부상조(110)와 연결잭(190) 및 퀵커플링(200)으로 연결되며, 상기 이동식 침지막의 상단에 아이볼트(210) 및 플렉시블헤더(220)가 연결됨을 특징으로 하는 가압부상법과 막교체가 용이한 이동식 침지막 복합 방사성 폐액 처리시스템. A chemical mixing tank (100) for mixing the radioactive waste liquid and the flocculant; A dissolved air pressurized floating vessel 110 in which water passing through the chemical admixture tank 100 is dewatered and impurities floating on the water surface are removed; A movable immersion membrane 120 disposed under the dissolved air pressurized floating vessel 110; A bubble diffusing pipe 130 disposed below the mobile immersion membrane 120 to generate micro bubbles to float impurities in the water; A treated water pump 140 installed to discharge treated water that has passed through the mobile immersion membrane 120; A skimmer 150 disposed on the outside of the dissolved air pressurized floating tank 110 to remove impurities floating in the dissolved air pressurized floating tank 110; And a sludge thickener 160 for concentrating the sludge from which the impurities have been removed by the skimmer 150. The pressurized tank 170 is connected to the dissolved air pressurized floating tank 110, The mobile immersion membrane 120 is configured to recover air from the air compressor 180 and the air generated from the dissolved air pressurized floating tank 110 to generate fine air. ) And a quick coupling (200), and an eye bolt (210) and a flexible header (220) are connected to the upper end of the movable immersion film. The pressurized floating method and the movable immersion film composite radioactive waste solution treatment system. 삭제delete 삭제delete 삭제delete 방사성 폐액과 응집제를 혼합하는 약품혼화조(100)와; 상기 약품혼화조(100)를 통과한 물이 경유됨과 동시에 수면상에 부상된 불순물이 제거되는 용존공기가압부상조(110)와; 상기 용존공기가압부상조(110)의 하부에 배치되는 이동식 침지막(120)과; 상기 이동식 침지막(120)의 하부에 배치되어 미세기포를 발생시켜 물에 섞여 있는 불순물을 부상시키는 기포산기관(130)과; 상기 이동식 침지막(120)을 통과한 처리수를 유출시키도록 설치된 처리수펌프(140)와; 상기 용존공기가압부상조(110)의 외측에 배치되며, 용존공기가압부상조(110)에 부상된 불순물을 제거하는 스키머(150)와; 상기 스키머(150)에 의해 불순물이 제거된 슬러지를 농축시키는 슬러지농축조(160)로 구성되고, 상기 용존공기가압부상조(110)에는 가압탱크(170)가 연결되며, 상기 가압탱크(170)는 공기압축기(180)와 용존공기가압부상조(110)에서 발생된 공기를 회수하여 미세공기를 발생시키도록 구성되며, 상기 이동식 침지막(120)은 용존공기가압부상조(110)와 연결잭(190) 및 퀵커플링(200)으로 연결되며, 상기 이동식 침지막의 상단에 아이볼트(210) 및 플렉시블헤더(220)가 연결된 가압부상법과 막교체가 용이한 이동식 침지막 복합 방사성 폐액 처리시스템(A)을 통해 방사성 폐액을 처리함을 특징으로 하는 방사성 폐액 처리방법.A chemical mixing tank (100) for mixing the radioactive waste liquid and the flocculant; A dissolved air pressurized floating vessel 110 in which water passing through the chemical admixture tank 100 is dewatered and impurities floating on the water surface are removed; A movable immersion membrane 120 disposed under the dissolved air pressurized floating vessel 110; A bubble diffusing pipe 130 disposed below the mobile immersion membrane 120 to generate micro bubbles to float impurities in the water; A treated water pump 140 installed to discharge treated water that has passed through the mobile immersion membrane 120; A skimmer 150 disposed on the outside of the dissolved air pressurized floating tank 110 to remove impurities floating in the dissolved air pressurized floating tank 110; And a sludge thickener 160 for concentrating the sludge from which the impurities have been removed by the skimmer 150. The pressurized tank 170 is connected to the dissolved air pressurized floating tank 110, The mobile immersion membrane 120 is configured to recover air from the air compressor 180 and the air generated from the dissolved air pressurized floating tank 110 to generate fine air. A pressurized floating method in which an eye bolt 210 and a flexible header 220 are connected to an upper end of the movable immersion membrane and a movable immersion membrane complex radioactive waste solution processing system A, Wherein the radioactive waste solution is treated through the radioactive waste solution.
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