KR100501417B1 - The apparatus to remove inorgaic materials in waste water using osmosis membrane and energy saving electrodes - Google Patents

The apparatus to remove inorgaic materials in waste water using osmosis membrane and energy saving electrodes Download PDF

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KR100501417B1
KR100501417B1 KR10-2002-0034981A KR20020034981A KR100501417B1 KR 100501417 B1 KR100501417 B1 KR 100501417B1 KR 20020034981 A KR20020034981 A KR 20020034981A KR 100501417 B1 KR100501417 B1 KR 100501417B1
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electrode
osmosis membrane
reverse osmosis
desalination
treated water
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KR20040000058A (en
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이재봉
박광규
안홍주
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한국전력공사
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D47/00Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/12Washers with plural different washing sections
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00Disinfection, sterilisation or deodorisation of air
    • A61L9/14Disinfection, sterilisation or deodorisation of air using sprayed or atomised substances including air-liquid contact processes
    • A61L9/145Disinfection, sterilisation or deodorisation of air using sprayed or atomised substances including air-liquid contact processes air-liquid contact processes, e.g. scrubbing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77Liquid phase processes
    • B01D53/78Liquid phase processes with gas-liquid contact
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77Liquid phase processes
    • B01D53/79Injecting reactants

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
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  • Water Treatment By Electricity Or Magnetism (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

본 발명은 역삼투막법과 전기화학적 방법을 혼합하여 사용하는 해수 및 폐수의 탈염장치에 관한 것으로, 보다 상세하게는 1차 무기염 제거를 위한 역삼투막장치, 2차 무기염 제거를 위한 전극탈염장치를 혼합이용하고 역삼투막장치의 브라인수의 압력을 전극탈염장치로의 물 유입 동력원으로 활용할 에너지회수장치를 활용하여 최종 무기물을 제거하여 해수 및 산업폐수를 정화하는 장치 및 방법에 관한 것이다.The present invention relates to a desalination apparatus for seawater and wastewater using a reverse osmosis membrane method and an electrochemical method, and more specifically, a reverse osmosis membrane apparatus for removing primary inorganic salts and an electrode desalting apparatus for removing secondary inorganic salts. The present invention relates to a device and a method for purifying seawater and industrial wastewater by removing the final inorganic material by using an energy recovery device that utilizes the brine water pressure of the reverse osmosis membrane device as a power inflow power source to the electrode desalination device.

본 발명은 종래의 탈염시에 발생하는 다량의 에너지소비, 장치부식과 파울링 등의 단점을 보완하여 연속적으로 수중 무기물을 제거하여 경제적이고 효율이 높은 폐수처리를 지향하고 또한, 해수 및 폐수중 무기물을 제거하여 산업용수로 활용함을 목적으로 한다.The present invention aims at economical and efficient wastewater treatment by continuously removing the inorganic minerals by supplementing the disadvantages of a large amount of energy consumption, device corrosion and fouling, which occur during the conventional desalination, and also the inorganic minerals in seawater and wastewater. The purpose is to remove and use as industrial water.

Description

역삼투막법/전극법을 이용한 폐수 탈염장치{The apparatus to remove inorgaic materials in waste water using osmosis membrane and energy saving electrodes} The apparatus to remove inorgaic materials in waste water using osmosis membrane and energy saving electrodes}

본 발명은 역삼투막법과 전기화학적 방법을 혼합하여 사용하는 해수 및 폐수의 탈염장치에 관한 것으로, 상세하게는 1차 무기염 제거를 위한 역삼투막장치, 2차 무기염 제거를 위한 전극탈염장치를 혼합이용하고 역삼투막장치의 브라인수의 압력을 전극탈염장치로의 물 유입 동력원으로 활용할 에너지회수장치를 활용하여 최종 무기물을 제거하여 해수 및 산업폐수를 정화하는 장치에 관한 것이다.The present invention relates to a desalination apparatus of seawater and wastewater using a reverse osmosis membrane method and an electrochemical method. Specifically, a reverse osmosis membrane apparatus for removing primary inorganic salts and an electrode desalting apparatus for removing secondary inorganic salts are used. The present invention relates to a device for purifying seawater and industrial wastewater by removing the final inorganic material by using an energy recovery device that utilizes the brine water pressure of the reverse osmosis membrane device as a power inflow power source to the electrode desalination device.

일반적으로 해수나 산업체 폐수는 증발법이나 역삼투막법을 이용하여 탈염시키는 방법을 사용하고 있다. 하지만 이러한 방법은 에너지 소비량이 크고, 부식이나 파울링 등의 문제점을 안고 있다. In general, seawater and industrial wastewater are desalted by evaporation or reverse osmosis. However, these methods consume a lot of energy and suffer from problems such as corrosion and fouling.

본 발명은 이러한 종래 문제점을 해결하기 위한 것으로, 해수나 산업체 폐수로부터 염성분 제거할 때 에너지 소비량을 줄이고, 유지관리의 편리성을 높일 수 있는 역삼투막법/전극법을 이용한 탈염장치를 제공하는데 그 목적이 있다.The present invention is to solve the conventional problems, to provide a desalination apparatus using a reverse osmosis membrane method / electrode method that can reduce the energy consumption when removing salt components from seawater or industrial wastewater, and improve the convenience of maintenance. have.

본 발명은 저압용 역삼투막법과 관통형의 전극법을 혼합하는 것에 의해 해수나 폐수로부터 염성분을 제거함으로써 목적을 달성할 수 있는 것으로, 본 발명에 따른 역삼투막법과 에너지회수형 전극법을 이용한 해수 및 폐수 탈염장치는 소정의 압력으로 유입되는 처리수에 대해 1차로 염성분을 제거하는 역삼투막장치; 스페이서, 양전극, 음전극이 원통형의 탱크내에 순차적으로 설치되어 상기 역삼투막장치로에서 1차 처리된 처리수로 부터 재차 염성분을 제거하는 전극탈염장치; 상기 역삼투막장치의 브라인측 압력을 전극탈염장치의 입구수 가압용으로 할용하기 위한 에너지회수장치; 상기 전극탈염장치에 구비된 양전극과 음전극에 전원을 공급하는 전원공급수단; 및 상기 전극탈염장치로 유입되는 처리수를 탈염하는 탈염과정과 탈염과정중에 전극에 흡착된 이온들을 탈리시키는 재생과정을 수행하기 위해 처리수가 유동하는 배관들에 구비된 밸브들을 제어하는 제어수단;을 포함하는 것을 특징으로 한다. The present invention can achieve the object by removing the salt component from the seawater or wastewater by mixing the low pressure reverse osmosis membrane method and the penetrating electrode method, seawater and wastewater desalination apparatus using the reverse osmosis membrane method and the energy recovery electrode method according to the present invention Reverse osmosis membrane device for removing the salt component primarily with respect to the treated water flowing at a predetermined pressure; An electrode desalination device in which a spacer, a positive electrode, and a negative electrode are sequentially installed in a cylindrical tank to remove salt components from the treated water firstly treated in the reverse osmosis membrane apparatus; An energy recovery device for applying the brine side pressure of the reverse osmosis membrane device to pressurize the inlet water of the electrode desalination device; Power supply means for supplying power to the positive electrode and the negative electrode provided in the electrode desalination device; And control means for controlling valves provided in pipes through which the treated water flows to perform a desalting process of desalting the treated water flowing into the electrode desalting apparatus and a regeneration process of desorbing ions adsorbed to the electrode during the desalting process. It is characterized by including.

이하, 본 발명의 바람직한 실시예를 첨부된 도면을 통해 설명한다. 도 1은 본 발명에 따른 해수 및 폐수 탈염장치의 상향식 공정을 보인 공정도이다.Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. 1 is a process chart showing a bottom-up process of the seawater and wastewater desalination apparatus according to the present invention.

도면을 참조하면, 전체를 부호 1로 표시한 본 발명에 따른 상향식 전극탈염장치는 해수나 폐수등의 처리수로부터 1차로 무기염을 제거하기 위한 역삼투막장치(10)와 상기 역삼투막장치(10)에 의해 1차 무기염이 제거된 처리수로부터 2차로 무기염을 제거하기 위한 전극탈염장치(20)를 포함하고 있다.Referring to the drawings, the bottom-up electrode desalination apparatus according to the present invention, which is indicated by the reference numeral 1, is a reverse osmosis membrane device 10 and the reverse osmosis membrane device 10 for firstly removing inorganic salts from treated water such as seawater or wastewater. Electrode desalination apparatus 20 for removing inorganic salt from the treated water from which the primary inorganic salt was removed by secondary is included.

본 발명의 상향식 전극탈염장치(1)는 상기 역삼투막장치(10)와 전극탈염장치(20)를 입수관(11), 연결관(12), 배수관(13)을 통해 처리수를 유동시키게 되며, 또한 각 장치들은 압력배관(14-16)을 통해 역삼투막장치(10)에서 발생하는 압력을 연결관(12)과 배수관(13)에 가압하는 것에 의해 처리수를 유동시키는데 이용하고 있다.Bottom-up electrode desalination device 1 of the present invention is to flow the treated water through the reverse osmosis membrane device 10 and the electrode desalination device 20 through the inlet pipe 11, the connection pipe 12, the drain pipe 13, In addition, each device is used to flow the treated water by pressurizing the pressure generated in the reverse osmosis membrane device 10 through the pressure pipe 14-16 to the connecting pipe 12 and the drain pipe 13.

부호 30은 에너지회수장치를 도시한 것으로, 이 에너지회수장치(30)는 역삼투막장치(10)의 브라인수의 압력을 이용한 것으로, 이때 가해지는 10-40Kg/Cm2의 압력을 회수하고 그 압력을 이용하여 상기 역삼투막장치(10)에서 유출되는 처리수를 전극탈염장치(20)로 유동시키고 또한 전극탈염장치(20)를 통과하는 처리수를 배수시키기 위한 동력원으로 활용하고 있다.Reference numeral 30 denotes an energy recovery device, and the energy recovery device 30 uses the brine water pressure of the reverse osmosis membrane device 10. At this time, the pressure of 10-40 Kg / Cm2 is recovered and the pressure is used. Thus, the treated water flowing out of the reverse osmosis membrane apparatus 10 is flowed to the electrode desalination apparatus 20 and used as a power source for draining the treated water passing through the electrode desalination apparatus 20.

부호 40은 상기 전극탈염장치(12)에 전원을 공급하는 전원공급장치이고, 부호 50은 수처리공정과 전극재생공정을 조절하기 위한 제어장치로서, 이 제어장치(50)는 전극탈염장치(20)에 공급되는 전원을 제어함과 동시에 압력배관(16)과 배수관(13)에 각각 구비된 밸브(16a)(13a)들의 개폐를 제어한다.Reference numeral 40 denotes a power supply device for supplying power to the electrode desalination device 12, and reference numeral 50 denotes a control device for controlling a water treatment process and an electrode regeneration process, and the control device 50 is an electrode desalination device 20. At the same time as controlling the power supplied to the pressure pipe 16 and the drain pipe 13 to control the opening and closing of the valve (16a, 13a) respectively provided.

또한 본 발명은 1차로 무기염이 제거된 상태의 처리수와 2차로 무기염이 제거된 상태의 처리수의 수질상태를 각각 모니터링할 수 있는 모니터링용 전도도계(17-19)들을 포함한다. The present invention also includes monitoring conductivity meters 17-19 for monitoring the water quality of the treated water in the state where the inorganic salt is first removed and the treated water in the state where the inorganic salt is removed second.

이와 같이 구성된 상향식 전극탈염장치(1)는 처리수가 통과하는 전극이 수직으로 설치된 수직관통형으로 이루어져 있고, 따라서 전극이 수평으로 설치된 수평형보다 처리수가 통과하는 차압이 많이 걸리는 단점이 있지만 반대로 역삼투막장치(10)의 브라인측에서 발생되는 압력을 에너지회수장치(30)에서 그 압력을 이용하여 연결관(12)에 압력을 가하는 것에 의해 역삼투막장치(10)에서 배출되는 처리수를 전극탈염장치(20)로 이송시키게 된다.The bottom-up electrode desalination apparatus 1 configured as described above has a vertical through type in which electrodes passing through the treated water are vertically installed. Therefore, the reverse osmosis membrane device has a disadvantage in that a differential pressure through which the treated water passes is greater than the horizontal type in which the electrodes are horizontally installed. The treated water discharged from the reverse osmosis membrane apparatus 10 is applied to the electrode desalination apparatus 20 by applying pressure generated at the brine side of the apparatus 10 to the connecting pipe 12 using the pressure in the energy recovery apparatus 30. Will be transferred to).

도 2는 본 발명에 따른 해수 및 폐수 탈염장치의 하향식 공정을 보인 공정도로써, 다만 역삼투처리장치(10)에서 1차로 무기염이 제거된 처리수를 전극탈염장치(20) 상부로 공급하는 것에 의해 그 처리수가 역삼투처리장치(10) 내에서 하향으로 낙하하면서 무기염이 제거될 수 있도록 하는 점에서 차이가 있을 뿐 나머지 구조는 상향식 탈염장치와 동일하므로 각각의 구성요소에 대한 상세한 설명은 생략한다.2 is a process diagram showing a top-down process of the seawater and wastewater desalination apparatus according to the present invention, except that the reverse osmosis treatment apparatus 10 supplies treated water from which inorganic salts are first removed to the electrode desalination apparatus 20. There is a difference in that the treated water falls downward in the reverse osmosis treatment apparatus 10 so that the inorganic salts can be removed, but the rest of the structure is the same as the bottom-up desalination apparatus, so detailed description of each component is omitted. do.

도 3은 1차 처리된 처리수로부터 2차로 무기염을 제거하기 위한 상향식 전극탈염장치(20)의 내부구조를 보인 단면도이다. 도면을 참조하면, 전극탈염장치(20)는 원통형의 탱크(21) 내부에 그 하부로부터 스페이서(22), 양전극(23), 음전극(24), 양전극(23), 스페이서(22)가 순차적으로 설치된다.3 is a cross-sectional view showing the internal structure of the bottom-up electrode desalination apparatus 20 for removing inorganic salts from the first treated water. Referring to the drawings, the electrode desalination apparatus 20 has a spacer 22, a positive electrode 23, a negative electrode 24, a positive electrode 23, and a spacer 22 sequentially from the bottom thereof in a cylindrical tank 21. Is installed.

상기 스페이서(22)는 처리수가 통과될 수 있도록 도 5와 같이 그물망 형태를 이루고 있고, 양전극(23)이나 음전극(24)들은 가느다란 미선들로 이루어져 있고, 양전극과 음전극은 같은 형태의 모양과 재질로 되어 있으며 재질은 활성탄소섬유로 이루어진다.The spacer 22 has a mesh shape as shown in FIG. 5 to allow the treated water to pass therethrough, and the positive electrode 23 and the negative electrode 24 are made of thin tail wires, and the positive electrode and the negative electrode have the same shape and material. It is made of activated carbon fiber.

상기 스페이서(30)는 양전극과 음전극사이에 밀착되어 2-6개가 설치되어 있고 그 사이는 3-10mm간격을 유지한다. 양전극(23)과 음전극(24)은 한쌍의 버스바(25)와 각각 전기적으로 연결되어 0.5-1.4V의 직류전원을 공급받아 전극들이 이온흡착 기능만을 수행할 수 있도록 하고 있다.The spacers 30 are in close contact with each other between the positive electrode and the negative electrode, and two to six are installed, and maintain a space of 3-10 mm therebetween. The positive electrode 23 and the negative electrode 24 are electrically connected to the pair of bus bars 25, respectively, so as to receive a DC power of 0.5-1.4 V so that the electrodes can perform only an ion adsorption function.

이와 같이 구성된 전극탈염장치(20)는 해수 및 폐수가 연결관(12)을 통하여 탱크(28)의 하부로 유입되어 상부로 유동하면서 출수관(19)을 통하여 나가게 된다. 이때 처리수의 처리 유속은 0.2m/s∼1.0m/s범위에서 처리수질에 따라 조절되고, 그 과정중에 염성분이 제거되는 탈염과정을 거치게 된다.The electrode desalination apparatus 20 configured as described above is introduced into the lower portion of the tank 28 through the connection pipe 12 and flows upward, and exits through the water discharge pipe 19. At this time, the treatment flow rate of the treated water is adjusted according to the treated water quality in the range of 0.2m / s to 1.0m / s, and undergoes a desalting process to remove the salt component in the process.

본 발명은 전극에 흡착된 무기이온들을 제거하는 공정인 재생공정을 포함하고 있으며, 이 재생공정은 흡착된 양이온과 음이온을 탈착, 제거하기 위하여 운전시간 1시간마다 2∼3분간 유량은 유지한 채로 제어장치(50)에 의해 양전극(23)과 음전극(24)으로 공급되는 공급전원의 극성을 바꾸어 준다. The present invention includes a regeneration process that removes inorganic ions adsorbed on the electrode, and this regeneration process maintains a flow rate for 2-3 minutes every 1 hour of operation time to desorb and remove the adsorbed cations and anions. The polarity of the power supply supplied to the positive electrode 23 and the negative electrode 24 is changed by the controller 50.

또한 운전시간 1시간마다 공급전원을 양전극과 음전극의 극성을 바꾸어 주고, 전극탈염장치(20)의 출구측 전도도계(19)의 전도도수치와 입구측 전도도계(17)의 전도도수치가 같아지는 시점에서 다시 양전극과 음전극을 바꾸어 줌으로서 재생을 완료한다. 이때 전극탈염장치(20)를 재생하기 위한 재생입수관(12)는 밸브(12a)에 의해 폐로되고 재생출수관(13)은 밸브(13a)에 의해 개로된다.In addition, the polarity of the positive electrode and the negative electrode is changed every 1 hour of the operating time, and the time point at which the conductivity value of the outlet conductivity meter 19 of the electrode desalting device 20 and the conductivity value of the inlet conductivity meter 17 are the same. The playback is completed by switching the positive and negative electrodes again. At this time, the regeneration inlet pipe 12 for regenerating the electrode desalination device 20 is closed by the valve 12a and the regeneration water pipe 13 is opened by the valve 13a.

도 4는 1차 처리된 처리수로부터 2차로 무기염을 제거하기 위한 하향식 전극탈염장치(20)의 내부구조를 보인 단면도이다. 도면을 참조하면, 전극탈염장치(20)는 원통형의 탱크(21) 내부에 처리수가 유입되는 그 상부로부터 스페이서(22), 양전극(23), 음전극(24), 양전극(23), 스페이서(22)가 순차적으로 설치된다.4 is a cross-sectional view showing the internal structure of the top-down electrode desalination apparatus 20 for secondarily removing inorganic salts from the treated water. Referring to the drawings, the electrode desalination apparatus 20 includes a spacer 22, a positive electrode 23, a negative electrode 24, a positive electrode 23, and a spacer 22 from the upper portion of the treated water flowing into the cylindrical tank 21. ) Are installed sequentially.

상기 스페이서(22)는 처리수가 통과될 수 있도록 그물망 형태를 이루고 있고, 양전극(23)이나 음전극(24)들은 가느다란 미선들로 이루어져 있고, 양전극과 음전극은 같은 형태의 모양과 재질로 이루어지며 그들의 재질은 활성탄소섬유로 이루어진다.The spacer 22 has a mesh shape to allow the treated water to pass therethrough, and the positive electrode 23 and the negative electrode 24 are made of thin tail wires, and the positive electrode and the negative electrode are made of the same shape and material. The material is made of activated carbon fiber.

상기 스페이서(30)는 상향식 전극탈염장치(20)와 동일하게 양전극과 음전극사이에 밀착되어 2-6개가 설치되어 있고 그 사이는 3-10mm간격을 유지한다. 양전극(23)과 음전극(24)은 한쌍의 버스바(25)와 각각 전기적으로 연결되어 0.5-1.4V의 직류전원을 공급받아 전극들이 이온흡착 기능만을 수행할 수 있도록 하고 있다.The spacer 30 is in close contact with the positive electrode and the negative electrode in the same manner as the bottom-up electrode desalination apparatus 20, and 2-6 pieces are installed therebetween, maintaining a 3-10 mm interval therebetween. The positive electrode 23 and the negative electrode 24 are electrically connected to the pair of bus bars 25, respectively, so as to receive a DC power of 0.5-1.4 V so that the electrodes can perform only an ion adsorption function.

이와 같이 구성된 전극탈염장치(20)는 해수 및 폐수가 연결관(12)을 통하여 탱크(21)의 상부로 유입되어 하부로 유동하면서 출수관(19)을 통하여 나가게 된다. 이때 처리수의 처리 유속은 0.2m/s∼1.0m/s범위에서 처리수질에 따라 조절되고, 그 과정중에 염성분이 제거되는 탈염과정을 거치게 된다.The electrode desalination device 20 configured as described above is introduced into the upper portion of the tank 21 through the connection pipe 12 and flows downward through the discharge pipe 19. At this time, the treatment flow rate of the treated water is adjusted according to the treated water quality in the range of 0.2m / s to 1.0m / s, and undergoes a desalting process to remove the salt component in the process.

본 발명은 전극에 흡착된 무기이온들을 제거하는 공정인 재생공정을 포함하고 있으며, 이 재생공정은 흡착된 양이온과 음이온을 탈착, 제거하기 위하여 운전시간 1시간마다 2∼3분간 유량은 유지한 채로 제어장치(50)에 의해 양전극(23)과 음전극(24)으로 공급되는 공급전원의 극성을 바꾸어 준다. The present invention includes a regeneration process that removes inorganic ions adsorbed on the electrode, and this regeneration process maintains a flow rate for 2-3 minutes every 1 hour of operation time to desorb and remove the adsorbed cations and anions. The polarity of the power supply supplied to the positive electrode 23 and the negative electrode 24 is changed by the controller 50.

또한 운전시간 1시간마다 공급전원을 양전극과 음전극의 극성을 바꾸어 주고, 전극탈염장치(20)의 출구측 전도도계(19)의 전도도수치와 입구측 전도도계(17)의 전도도수치가 같아지는 시점에서 다시 양전극과 음전극을 바꾸어 줌으로서 재생을 완료한다. 이때 전극탈염장치(20)를 재생하기 위한 재생입수관(12)은 밸브(12a)에 의해 폐로되고 재생출수관(13)은 밸브(13a)에 의해 개로된다.In addition, the polarity of the positive electrode and the negative electrode is changed every 1 hour of the operating time, and the time point at which the conductivity value of the outlet conductivity meter 19 of the electrode desalting device 20 and the conductivity value of the inlet conductivity meter 17 are the same. The playback is completed by switching the positive and negative electrodes again. At this time, the regeneration inlet pipe 12 for regenerating the electrode desalination device 20 is closed by the valve 12a, and the regeneration water pipe 13 is opened by the valve 13a.

제 5도는 2차 무기염 제거를 위한 전극탈염장치(20)의 단위 전극셀을 나타낸 것으로, 스페이서(22), 양전극(23), 음전극(24)이 원통형의 탱크(28)내에 수평으로, 차례로 그리고 교대로 설치되어 있으며 스페이서(22)는 음전극과 양전극사이에 밀착되어 2-6개가 설치되어 있고 그 사이는 3-10mm간격을 유지하여 하나의 이온화 셀을 이룬다. 5 shows a unit electrode cell of the electrode desalination apparatus 20 for removing the secondary inorganic salt, in which the spacer 22, the positive electrode 23, and the negative electrode 24 are horizontally arranged in the cylindrical tank 28 in order. In addition, the spacers 22 are alternately disposed, and two to six spacers are closely contacted between the negative electrode and the positive electrode, and are spaced between 3-10 mm to form one ionization cell.

이상에서 설명한 바와 같이 본 발명은 해수 및 폐수를 처리하여 담수를 생산시 역삼투막법과 전기화학적 방법을 혼용하여 처리함으로써 역삼투막을 단독으로 사용시보다 에너지 소모량을 감소시킬 수 있었으며, 또한 전극법을 단독으로 사용시보다 다량의 해수 및 폐수를 처리함으로서 효율성을 제고할 수 있다. As described above, the present invention was able to reduce the energy consumption of the reverse osmosis membrane by using the reverse osmosis membrane method and the electrochemical method when treating the seawater and the waste water by producing a combination of fresh water and the electrochemical method. The efficiency can be improved by treating seawater and wastewater.

그리고 기존의 담수화 방법인 증발법이나 역삼투막법보다 전극법을 혼합사용함으로서 파울링이나 부식을 줄일수 있어 유지관리의 편의성도 확보할 수 있다. In addition, it is possible to reduce fouling or corrosion by using an electrode method rather than the conventional desalination method, evaporation method or reverse osmosis membrane method, thereby ensuring convenience of maintenance.

더욱이 역삼투막법을 이용하는 과정에서 발생하는 압력을 에너지회수장치로 회수하여 그 압력을 전극탈염장치로의 처리수 유입 동력원으로 활용함으로써 소모에너지를 재 사용할 수 있다.In addition, the pressure generated in the process of using the reverse osmosis membrane method can be recovered by the energy recovery device, and the pressure can be reused by utilizing the pressure as an inflow power source for treatment water into the electrode desalination device.

도 1은 본 발명의 실시예에 따른 상향식 공정의 개략도,1 is a schematic diagram of a bottom-up process according to an embodiment of the present invention,

도 2는 본 발명의 실시예에 따른 하향식 공정의 개략도,2 is a schematic diagram of a top down process according to an embodiment of the present invention;

도 3은 상향식 전극처리장치 단면도,3 is a cross-sectional view of the bottom-up electrode processing apparatus,

도 4는 하향식 전극처리장치 단면도,4 is a cross-sectional view of the top-down electrode processing apparatus;

도 5는 도 3 및 도 4의 내부전극 및 스페이서의 배열도.5 is a layout view of internal electrodes and spacers of FIGS. 3 and 4;

*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

10; 역삼투막처리장치 20; 전극탈염장치10; Reverse osmosis membrane treatment apparatus 20; Electrode Desalination Device

22; 스페이서 23; 양전극22; Spacer 23; Positive electrode

24; 음전극 25; 버스바24; Negative electrode 25; Busbar

30; 에너지회수장치 40; 전원공급장치 30; Energy recovery device 40; Power supply

50; 제어장치50; Controller

Claims (5)

소정의 압력으로 유입되는 처리수에 대해 1차로 염성분을 제거하는 역삼투막장치; A reverse osmosis membrane device for firstly removing a salt component with respect to the treated water introduced at a predetermined pressure; 스페이서, 양전극, 음전극이 원통형의 탱크내에 순차적으로 설치되어 상기 역삼투막장치로에서 1차 처리된 처리수로 부터 재차 염성분을 제거하는 전극탈염장치;An electrode desalination device in which a spacer, a positive electrode, and a negative electrode are sequentially installed in a cylindrical tank to remove salt components from the treated water firstly treated in the reverse osmosis membrane apparatus; 상기 역삼투막장치의 브라인측 압력을 전극탈염장치의 입구수 가압용으로 할용하기 위한 에너지회수장치; An energy recovery device for applying the brine side pressure of the reverse osmosis membrane device to pressurize the inlet water of the electrode desalination device; 상기 전극탈염장치에 구비된 양전극과 음전극에 전원을 공급하는 전원공급수단; 및Power supply means for supplying power to the positive electrode and the negative electrode provided in the electrode desalination device; And 상기 전극탈염장치로 유입되는 처리수를 탈염하는 탈염과정과 탈염과정중에 전극에 흡착된 이온들을 탈리시키는 재생과정을 수행하기 위해 처리수가 유동하는 배관들에 구비된 밸브들을 제어하는 제어수단;을 포함하는 것을 특징으로 하는 역삼투막법/전극법을 이용한 폐수 탈염장치.And control means for controlling the valves provided in the pipes through which the treated water flows to perform desalting to dehydrate the treated water flowing into the electrode desalting apparatus and to regenerate ions adsorbed on the electrode during the desalting process. Wastewater desalination apparatus using a reverse osmosis membrane method / electrode method characterized in that. 제 1항에 있어서, 상기 스페이서는 양전극과 음전극 사이와, 그들의 양단에 각각 구비되는 것을 특징으로 하는 역삼투막법/전극법을 폐수 탈염장치.The apparatus of claim 1, wherein the spacer is disposed between the positive electrode and the negative electrode and at both ends thereof. 삭제delete 삭제delete 제 2항에 있어서, 상기 스페이서는 그 사이 간격이 3-10mm의 간격으로 이격되어 있는 것을 특징으로 하는 역삼투막법/전극법을 이용한 폐수 탈염장치. 3. The wastewater desalination apparatus according to claim 2, wherein the spacers are spaced apart at intervals of 3-10 mm.
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