KR100445641B1 - Desalting method for waste liquid or organic waste materials - Google Patents
Desalting method for waste liquid or organic waste materials Download PDFInfo
- Publication number
- KR100445641B1 KR100445641B1 KR10-2001-0043272A KR20010043272A KR100445641B1 KR 100445641 B1 KR100445641 B1 KR 100445641B1 KR 20010043272 A KR20010043272 A KR 20010043272A KR 100445641 B1 KR100445641 B1 KR 100445641B1
- Authority
- KR
- South Korea
- Prior art keywords
- waste
- salt
- chamber
- wastes
- desalting
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
- B01D61/44—Ion-selective electrodialysis
- B01D61/54—Controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/08—Prevention of membrane fouling or of concentration polarisation
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F9/00—Fertilisers from household or town refuse
- C05F9/04—Biological compost
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/20—Manufacture of shaped structures of ion-exchange resins
- C08J5/22—Films, membranes or diaphragms
- C08J5/2287—After-treatment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Urology & Nephrology (AREA)
- Materials Engineering (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
본 발명은 음식물쓰레기나 이를 탈수한 여액, 김치공장 배출폐액, 수산물가공공장 배출폐액과 같이 염분(NaCl) 함량이 높은 폐기물이나 폐액에서 염분을 제거하기 위해서 양극판(2)과 음극판(3) 사이에 음이온교환격막(4)과 양이온교환격막(5)으로 격리한 탈염실(7)을 다단으로 설치하고, 이들 사이에 염분이 함유된 폐액실(6)을 설치하여 정류기(11)에서 직류전류를 인가하면 폐기물이나 폐액 중에 함유된 Na+이온은 양이온교환격막(5)을 통과하여 음극(3)쪽으로 이동하고, Cl-이온은 음이온교환격막(4)을 통과하여 양극(2)쪽으로 이동하여 탈염실(7)에서 염분(NaCl)이 분리농축되면서 폐기물이나 폐액에 함유된 염분을 제거한 다음에 사료나 퇴비로 자원화 한다.The present invention is provided between the positive electrode plate (2) and the negative electrode plate (3) in order to remove the salt from wastes or wastes with high salt (NaCl) content, such as food waste, filtrate dehydrated it, kimchi factory waste, aquatic product processing waste A desalting chamber (7) separated by anion exchange membrane (4) and a cation exchange membrane (5) is provided in multiple stages, and a waste liquid chamber (6) containing salt therebetween is installed to provide direct current in the rectifier (11). When applied, Na + ions contained in the waste or waste liquid pass through the cation exchange diaphragm 5 to the negative electrode 3, and Cl − ions move through the anion exchange diaphragm 4 toward the positive electrode 2 and desalted. As salt (NaCl) is separated and concentrated in the chamber (7), the salt contained in waste or waste liquid is removed and then recycled into feed or compost.
특이한 사항은 전력 소모량이 재래적인 탈염방법에 비해서 1/5∼1/10 정도로 감소하며, 장치의 크기가 적어 시설비가 적기 때문에 경제성이 우수하면서 탈염 효율도 우수하다.What is unusual is that the power consumption is reduced by 1/5 to 1/10 compared to the conventional desalination method, and because of the small size of the equipment, the facility cost is low, so it is economical and desalination efficiency is excellent.
Description
본 발명은 음식물쓰레기나 이를 탈수한 여액, 김치공장 배출폐액, 수산물가공공장 배출폐액과 같이 염분(NaCl)의 농도가 높은 유기성폐기물이나 폐액에 양이온교환격막(5)과 음이온교환격막(4)으로 이루어진 다단의 탈염실(7)과 탈염실(7) 사이사이에는 폐액실(6)로 구성되고, 양단에는 양극실(8)과 음극실(9)로 이루어진 탈염장치에 직류전류를 인가하여 경제적으로 염분을 제거하는 방법에 관한 것이다.The present invention is a cation exchange diaphragm (5) and an anion exchange diaphragm (4) to organic waste or waste liquid having a high concentration of salt (NaCl), such as food waste, filtrate dehydrated it, kimchi factory wastewater, aquatic product wastewater. Between the desalting chamber (7) and the desalting chamber (7) of the multi-stage consisting of a waste liquid chamber (6), both ends are applied economically by applying a direct current to the desalting device consisting of the anode chamber (8) and the cathode chamber (9) It relates to a method for removing salt.
상기에서 언급된 음식물쓰레기와 같은 염분함량이 높은 유기성폐기물을 사료나 퇴비로 자원화하는 경우에 염해 문제를 야기시키기 때문에 탈염처리를 하지 않으면 안된다.Desalination must be performed because organic wastes with high salt content, such as food waste mentioned above, can cause salt problems when they are recycled into feed or compost.
김치공장 배출폐액이나 수산물가공공장 배출폐액과 같이 염분의 농도가 높은 폐액은 함유되어 있는 유기오염물질(BOD 및 COD)을 처리한 다음에 농수로 등에 방류하게 되면 삼투압 현상에 의하여 농작물에 염해 현상을 야기시킬 뿐만 아니라 Na+이온이 토양의 Ca, Mg와 치환되면서 토양의 입단구조를 단립화시켜 배수가 불량하면서 통기성이 떨어지는 토양이 되어 경작이 어려워지게 된다.Wastewater with high salt concentration, such as wastewater from Kimchi plant or wastewater from aquatic product processing plant, is treated with organic pollutants (BOD and COD) and then discharged into agricultural waterways. In addition, as Na + ions are replaced with Ca and Mg of the soil, the grain structure of the soil is shortened, so that the drainage is poor and the soil is less breathable, which makes it difficult to cultivate.
상기와 같은 문제점을 해결하기 위해서 음식물쓰레기는 수세하는 방법이 주로 이용되고 있으나 염분제거효율이 낮으면서 별도의 폐수처리를 해야하는 결점이 있으며, 처리된 처리수는 농수로나 농업용수로 이용되는 하천에 유입되어서는 안된다.In order to solve the above problems, the method of washing food waste is mainly used, but there is a shortage of separate wastewater treatment with low salt removal efficiency, and the treated water is introduced into a river used as agricultural waterways or agricultural waters. Should not be.
그리고 대한민국 특허등록번호 10-0284282호 및 10-0342358호에서는 양극실과 음극실을 음이온 교환격막과 양이온 교환격막으로 분리하여 단순 전기분해에 의해서 Na+이온과 Cl-이온을 분해제거하므로 높은 전류를 필요로 하기 때문에 전력소모량이 많으며, 또한, 탈염효율을 향상하기 위해서 고전압을 인가할 때 양극실에서는 Cl2, ClO2등의 악취성가스가 발생하여 2차 공해를 야기시키는 결점이 있다.그리고 미국특허공보 제5,736,023호의 전기이온탈착(EDI ; Electrodeionization)공정에 의한 수용액 중의 염분을 제거하는 경우는 염분의 농도가 낮은 용수를 탈염을 하는 원자력발전소의 용수, 반도체공장의 세정수, 정밀화학에 사용하는 정수와 같은 순수에 가깝게 완벽한 탈염을 하는 경우 양극(陽極)과 음극(陰極)의 거리를 최소화 할 수 있어 양극(兩極) 사이의 액저항이 적기 때문에 낮은 인가 전압으로 탈염을 할 수 있는 이점이 있느나 이 역시 대한민국 특허등록번호 10-0284282호 및 10-0342358호에서와 같이 수용액 중의 염분을 양극실과 음극실로 전기분해에 의한 동일 메커니즘(Mechanisms)의해서 탈염되기 때문에 음식물쓰레기나 이를 탈수한 여액, 김치공장 배출폐액, 수산물가공공장 배출폐액과 같이 염분(NaCl)의 농도가 높은 유기성폐기물이나 폐액의 경우에는 전류의 소모량이 많아 전력비가 높기 때문에 고염분폐기물이나 폐액의 처리에는 적용을 할 수 없다.In Korea Patent Registration Nos. 10-0284282 and 10-0342358, the anode chamber and cathode chamber are separated into anion exchange membrane and cation exchange membrane to decompose and remove Na + ions and Cl - ions by simple electrolysis, thus requiring high current. In order to improve the desalination efficiency, when the high voltage is applied, odorous gases such as Cl 2 and ClO 2 are generated in the anode chamber, causing secondary pollution. In the case of removing the salt in the aqueous solution by the Electrodeionization (EDI) process of Publication No. 5,736,023, the water used in the nuclear power plant for desalting water with low salt concentration, the washing water in the semiconductor plant, and the fine chemicals used in fine chemistry In the case of complete desalination close to pure water such as, it is possible to minimize the distance between the anode and the cathode. The low resistance has the advantage of desalination with low applied voltage.Also, as in Korean Patent Registration Nos. 10-0284282 and 10-0342358, the same mechanism by electrolysis of salt in aqueous solution into the anode chamber and cathode chamber ( Because of the desalination by Mechanisms, organic wastes or wastes with high concentrations of salt (NaCl), such as food waste, filtrate from which it is dehydrated, wastes from Kimchi plant, and wastes from aquatic products processing plant, have high current consumption because of high current consumption It is not applicable to the treatment of high salt wastes or waste liquids.
구체적으로 말해서 대한민국 특허등록번호 10-0284282호,10-0342358호 및 미국특허공보 제5,736,023호는 전기분해에 의해서 탈염처리되므로 소금 1kg-mol인 58.5kg을 탈염하는 데는 1패러데이(Faraday)인 26,800암페어(Ampere)이상의 전류를 인가해야 한다.Specifically, Korean Patent Registration Nos. 10-0284282, 10-0342358, and U.S. Patent No. 5,736,023 are desalted by electrolysis, so it is 1 Faraday (26,800 amperes) for desalting 58.5 kg of salt. Current above (Ampere) should be applied.
본 발명은 전술한 문제점을 해결하면서 경제적으로 탈염을 하기 위해서 NaCl을 계(系;system)내에서 전기분해하지 않고, 격막내의 탈염실(7)로 염분(NaCl)이 이동되는 방법에 의해서 염분이 분리제거 되므로서 전력 소모량이 종전의 기술인 전기분해(Electrolysis)방법에 비해서 전기소모량이 1/5∼1/10이하로 감소되는 특징이 있다.The present invention solves the above-mentioned problems, and the salinity is reduced by the method in which the salt (NaCl) is transferred to the desalting chamber (7) in the diaphragm without electrolyzing NaCl in a system for economical desalination. As it is separated and removed, the power consumption is reduced to 1/5 to 1/10 or less as compared to the conventional electrolysis method.
본 발명에서 김치가공공장 배출폐액, 음식물쓰레기나 탈수여액, 수산물가공공장폐액과 같이 염분함량이 높은 유기성폐기물이나 폐액 중에 함유된 염분(NaCl)을 경제적이면서 위생적으로 처리할 수 있는 탈염방법을 제시하는 것이다.In the present invention, to propose a desalination method that can economically and hygienically treat salts (NaCl) contained in organic wastes or wastes with high salt content, such as kimchi processing plant waste liquid, food waste or dehydration liquid, aquatic product plant waste liquid. will be.
도 1은 탈염장치의 정면도1 is a front view of the desalination apparatus
도 2는 탈염장치의 측면도2 is a side view of the desalination apparatus
〈도면의 주요부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>
1: 탈염장치 몸체 2: 양극판1: desalting body 2: positive plate
3: 음극판 4: 음이온교환격막3: negative electrode plate 4: anion exchange membrane
5: 양이온교환격막 6: 폐액실5: cation exchange diaphragm 6: waste chamber
7: 탈염실 8: 양극실7: desalting chamber 8: anode chamber
9: 음극실 10: 극전환장치9: cathode chamber 10: pole switching device
11: 정류기 12: 지지 볼트 및 너트(Bolt ＆ Nut)11: Rectifier 12: Bolt & Nut
상기의 목적을 달성하기 위하여 도면을 중심으로 설명하면 다음과 같다.In order to achieve the above object, the following description will be given based on the drawings.
음식물쓰레기나 수산부산물과 같은 염분함량이 높은 유기성폐기물은 처리장에 반입되면 우선 비닐(vinyl)봉투, 대형물질, 쇠붙이, 유리파편 등과 같은 이물질을 분리제거한 다음에 파쇄기에 의해서 파쇄처리된 후에 저장조에 저장하며, 저장조에서는 아밀라아제(Amylase), 프로테아제(Protease), 리파제(Lipase) 등의 효소를 생성하는 미생물균제를 주입하여 발효처리하므로서 악취발생의 억제 및 탈염장치에 공급이 용이하게 유동성이 좋게 연질화한다.Organic wastes with high salt content, such as food waste or by-products of marine products, are first introduced into the treatment plant and then separated from foreign materials such as vinyl bags, large materials, metal parts, glass fragments, etc., and then crushed by a crusher and stored in a storage tank. In the storage tank, microbial fungi that produce enzymes such as amylase, protease, and lipase are injected and fermented so that the odor is softened and the fluidity is easily supplied to the desalination device. .
음식물쓰레기 탈수여액, 김치공장 배출폐액, 수산물가공공장 배출폐액, 식품가공공장 배출폐액에서와 같이 염분 농도가 높은 폐액이나 연질화된 유기성 폐기물은 일정량을 연속적으로 탈염장치에 공급한다.Wastewater with high salt concentration or softened organic waste, such as food waste dehydration, kimchi wastewater, seafood processing wastewater, and food waste wastewater, is fed to the desalination unit continuously.
탈염장치의 도1은 정면도를 나타내었으며, 도2는 측면도를 나타내었다.Figure 1 of the desalination apparatus shows a front view, Figure 2 shows a side view.
양극실(8)의 양극판(2)과 음극실(9)의 음극판(3) 사이에는 음이온교환막(4)과 양이온교환막(5)으로 된 탈염실(7)을 다단으로 설치하고, 탈염실(7) 사이사이에는 염분을 함유한 유기성폐기물을 공급하는 폐액실(6)이 다단으로 구성되어 있다.Between the positive electrode plate 2 of the positive electrode chamber 8 and the negative electrode plate 3 of the negative electrode chamber 9, a desalination chamber 7 composed of an anion exchange membrane 4 and a cation exchange membrane 5 is provided in multiple stages. 7) The waste liquid chamber 6 which supplies the organic waste containing a salt is comprised in multiple steps between.
이와 같은 탈염장치 양단의 양극실(8) 양극판(2)과 음극실(9) 음극판(3)에 정류기(11)에서 직류전류를 인가하면 폐액실(6)의 Na+이온은 음극판(3)쪽으로 양이온교환격막(5)을 통과하여 탈염실(7)로 이동하며, Cl-이온은 양극판(2)쪽으로 음이온교환격막(4)을 통과하여 탈염실(7)에 이동되어 NaCl로 분리농축되는 방법에 의해서 폐기물이나 폐액 중의 염분을 제거한다.When a direct current is applied from the rectifier 11 to the positive electrode chamber 8 and the negative electrode chamber 9 of the desalting device, the Na + ions of the waste chamber 6 are negative plate 3. To the desalination chamber 7 through the cation exchange diaphragm 5 toward the anode plate 2, and Cl − ions are transferred to the desalination chamber 7 through the anion exchange diaphragm 4 toward the anode plate 2 and separated and concentrated to NaCl. The salt is removed from waste or waste liquid by the method.
음극실(9)에서는 NaOH가 생성되기 때문에 양극실(8)쪽으로 보내어 Cl-이온과 반응토록 한다.In the cathode chamber 9, NaOH is generated, which is sent to the anode chamber 8 to react with Cl − ions.
탈염실(7)에서 Ca++, Mg++, Al+++, Fe++, Fe+++와 같은 다가(多價)이온이 분리농축되면 스케일(scale)이 생성되어 탈염효율이 저하되므로서 양이온교환격막(5)은 양이온교환성전해질은 포리에틸렌이민(Polyethylene imine)을 코팅(Coating)하여 1가 양이온(Na+)만 선택투과하는 막을 사용한다.In the desalting chamber (7), when polyvalent ions such as Ca ++ , Mg ++ , Al +++ , Fe ++ , Fe +++ are separated and concentrated, scales are generated and desalination efficiency is reduced. As a result, the cation exchange diaphragm 5 uses a membrane in which the cation exchange electrolyte is coated with polyethylene imine to selectively transmit monovalent cations (Na + ).
그리고, 장시간 운전시 양이온교환격막(5)에 생성된 스케일을 제거하기 위해서 일정시간마다 극전환장치(10)에 의해 양극과 음극을 전환한다.In order to remove the scale generated in the cation exchange diaphragm 5 during a long time operation, the positive electrode and the negative electrode are switched by the pole switching device 10 at regular intervals.
양극판(2)과 음극판(3)은 내식성이 우수하면서 전류저항이 적은 재질인 티타늄(Titanium)판에 TiO2-RuO2을 소부 코팅한 디에스이(DSE ; Dimensionally Stable Electrode)전극을 사용한다.The positive electrode plate 2 and the negative electrode plate 3 use DSE (Dimally Stable Electrode) electrodes which are baked by coating TiO 2 -RuO 2 on a titanium plate, which is a material having excellent corrosion resistance and low current resistance.
이상에서와 같은 탈염장치에 이론인가전류(I)는 다음식에 의해서 산정한다.The theoretical applied current (I) to the desalination apparatus as described above is calculated by the following equation.
I = (W / M) x {ZF / t(n+1)}I = (W / M) x {ZF / t (n + 1)}
여기서, I = 인가전류(KA)Where I = applied current KA
W = 물질이동량(kg)W = mass transfer (kg)
M = 분자량M = molecular weight
Z = 전자이동량Z = electron transfer
F = 패러데이(Faraday)상수(26.8KA-h/kg-eq)F = Faraday constant (26.8KA-h / kg-eq)
t = 시간(hr)t = hours (hr)
n = 탈염실단수n = number of desalted yarns
실제인가전류는 액저항, 격막저항, 도체저항과 부반응 등으로 인하여 전류효율이 떨어지기 때문에 이론인가전류보다 5∼10%정도 높게 인가한다.The actual applied current is 5 ~ 10% higher than the theoretical applied current because the current efficiency decreases due to liquid resistance, diaphragm resistance, conductor resistance and side reactions.
대한민국 특허등록번호 10-0284282호, 10-0342358호 및 미국특허공보 제5,736,023호에서와 같이 탈염실(7)이 없는 전기분해에 의해서 NaCl 1kg-mol인 58.5kg을 1시간 동안에 탈염을 하는 경우에는 정류기(11)에서 인가해야하는 전류는 26.8KA-h인데, 본 발명에서 탈염실(7)의 단수를 12단으로 하였을 때 인가전류는 2.06KA-h[= 26.8 x {1 / (12+1)} ]면 된다.When desalting 58.5 kg NaCl 1kg-mol for 1 hour by electrolysis without desalination chamber 7 as in Korean Patent Registration Nos. 10-0284282, 10-0342358 and US Patent No. 5,736,023 The current to be applied in the rectifier 11 is 26.8KA-h. In the present invention, when the number of stages of the desalination chamber 7 is 12, the applied current is 2.06KA-h [= 26.8 x {1 / (12 + 1) }]
[실시 예1]Example 1
염분함유량이 2.6wt%이면서 함수율 83wt%인 음식물쓰레기 1Ton/hr을 이상과 같은 탈염장치의 탈염실(7)과 염분을 함유한 폐액실(6)을 각각 12단으로 하여 전압 40∼100볼트(volt)를 인가하였을 때 인가전류와 탈염처리효율은 표1의 내용과 같다.With 40 to 100 volts, the desalination chamber (7) of the desalination unit and the waste liquid chamber (6) containing salt are 12 stages, respectively, with 1 ton / hr of food waste having a salt content of 2.6 wt% and a water content of 83 wt%. The applied current and desalination efficiency when volt) is applied are shown in Table 1.
[실시 예2]Example 2
염분함유량이 12wt%인 김치가공공장 배출폐액 0.2Ton/hr을 실시 예1과 동일한 탈염장치에 의해서 전압을 30∼70볼트(volt)를 인가하였을 때 인가전류와 탈염처리효율은 표2의 내용과 같다.Applied current and desalination efficiency are shown in Table 2 when the wastewater of 0.2Ton / hr of Kimchi processing plant with salt content of 12wt% is applied with 30 ~ 70 volts by the same desalting device as in Example 1. same.
음식물쓰레기, 수산부산물, 식품가공 공장부산물과 같이 염분함량이 높은 유기성 폐기물을 사료화의 경우에는 급여가축이 염독 현상을 야기시킬 우려가 있을 뿐만 아니라, 소화흡수 효율의 저하와 갈증으로 인하여 음료수 섭취량이 많아 배설뇨의 량이 많아지므로서 폐수처리 물량이 증가하는 등 여러 가지의 문제점이 있다.In the case of feeding organic wastes with high salt content such as food waste, fishery by-products, and food processing plant by-products, feed livestock may cause poisoning, as well as high intake of drinking water due to lower digestive absorption efficiency and thirst. As the amount of excretory urine increases, the amount of wastewater treatment increases, and there are various problems.
또한 이와 같은 유기성폐기물을 퇴비화 경우에도 식물의 성장장애 뿐만 아니라 심하면 고사하며, 토양의 Ca, Mg 성분이 Na+이온과 치환되면서 입단구조가 단립화되어 통기성과 통수성이 떨어져 작물이 성장할 수 없는 토양이 된다.In addition, even when composting such organic waste, not only the growth failure of the plant but also severely dies, and the soil Ca and Mg components are replaced with Na + ions, the grain structure is shortened, so that the crops cannot grow due to poor breathability and water permeability. Becomes
김치가공 공장폐액, 식품가공 공장폐액, 수산물가공 공장폐액, 음식물쓰레기 탈수여액 등과 같이 염분의 농도가 높은 폐액은 폐수처리효율이 떨어지면서 처리후 처리수를 농수로나 농업용수로 사용하는 하천으로 방류하는 경우에는 염분이 함유된 유기성폐기물을 퇴비화 경우와 마찬가지로 작물과 토양에 염해 현상을 야기시킨다.Wastewater with high salt concentration, such as kimchi processing plant wastes, food processing plant wastes, aquatic product plant wastes, and food waste dehydration, etc., reduces wastewater treatment efficiency and discharges treated water to rivers used as agricultural or agricultural water after treatment. In the same way as in the case of composting organic waste containing salt, it causes salt to crops and soils.
본 발명에서는 상기에서와 같은 염분농도가 높은 유기성폐기물이나 폐액을 전기분해방법에 의해서 Na+이온과 Cl-이온으로 분리하는 경우에 비해서는 인가전류가 1/10이하로 처리되므로서 전력 소모량이 적으면서 장치가 간단하여 시설비 및 설치부지가 적어 초기 투자비도 적기 때문에 경제성이 높으며, 또한 염분 제거효율도 높다.In the present invention, compared to the case where the organic waste or waste liquid having a high salt concentration as described above is separated into Na + ions and Cl - ions by the electrolysis method, the applied current is less than 1/10 and power consumption is low. In addition, the equipment is simple and the facility cost and installation site are small, so the initial investment is small, so the economic efficiency is high, and the salt removal efficiency is also high.
따라서 음식물쓰레기, 수산가공 공장부산물, 식품가공 공장부산물과 같이 염분농도가 높은 유기성 폐기물을 퇴비화, 사료화 등으로 자원화의 경우나 고염분 함유 폐액처리 등에 널리 보급될 것으로 기대된다.Therefore, organic wastes with high salt concentration, such as food waste, fish processing by-products, and food processing plant by-products, are expected to be widely used for composting and feed-processing waste liquids by composting and feeding.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2001-0043272A KR100445641B1 (en) | 2001-07-18 | 2001-07-18 | Desalting method for waste liquid or organic waste materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2001-0043272A KR100445641B1 (en) | 2001-07-18 | 2001-07-18 | Desalting method for waste liquid or organic waste materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20010085018A KR20010085018A (en) | 2001-09-07 |
| KR100445641B1 true KR100445641B1 (en) | 2004-08-25 |
Family
ID=19712271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR10-2001-0043272A KR100445641B1 (en) | 2001-07-18 | 2001-07-18 | Desalting method for waste liquid or organic waste materials |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100445641B1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050032941A (en) * | 2003-10-02 | 2005-04-08 | 김영준 | Salt in food waste removing device |
| KR100561023B1 (en) * | 2004-07-27 | 2006-03-17 | 김영준 | Apparatus for Salt Exclusion and Water Dehydration of a Food Garbage and Method Thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4351715A (en) * | 1979-04-18 | 1982-09-28 | Hitachi, Ltd. | Apparatus for high temperature electrodialysis |
| EP0604968A2 (en) * | 1992-12-28 | 1994-07-06 | Asahi Glass Company Ltd. | A method of producing water having a reduced salt content |
| US5736023A (en) * | 1994-05-20 | 1998-04-07 | U.S. Filter/Ionpure, Inc. | Polarity reversal and double reversal electrodeionization apparatus and method |
| US5837124A (en) * | 1996-10-29 | 1998-11-17 | Ebara Corporation | Method and apparatus for preventing scale from precipitating in producing deionized water |
| KR100284282B1 (en) * | 1998-09-29 | 2001-04-02 | 여광웅 | Desalting and disinfection device of food waste |
-
2001
- 2001-07-18 KR KR10-2001-0043272A patent/KR100445641B1/en not_active IP Right Cessation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4351715A (en) * | 1979-04-18 | 1982-09-28 | Hitachi, Ltd. | Apparatus for high temperature electrodialysis |
| EP0604968A2 (en) * | 1992-12-28 | 1994-07-06 | Asahi Glass Company Ltd. | A method of producing water having a reduced salt content |
| US5736023A (en) * | 1994-05-20 | 1998-04-07 | U.S. Filter/Ionpure, Inc. | Polarity reversal and double reversal electrodeionization apparatus and method |
| US5837124A (en) * | 1996-10-29 | 1998-11-17 | Ebara Corporation | Method and apparatus for preventing scale from precipitating in producing deionized water |
| KR100284282B1 (en) * | 1998-09-29 | 2001-04-02 | 여광웅 | Desalting and disinfection device of food waste |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20010085018A (en) | 2001-09-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Öğütveren et al. | Color removal from textile effluents by electrochemical destruction | |
| CN102674628B (en) | Sewage treatment and regeneration cyclic utilization device and sewage treatment and regeneration cyclic utilization method | |
| Zeng et al. | Emerging electrochemistry-based process for sludge treatment and resources recovery: A review | |
| US20190380313A1 (en) | Physico-chemical process for removal of nitrogen species from recirculated aquaculture systems | |
| Irki et al. | Decolorizing methyl orange by Fe-electrocoagulation process—a mechanistic insight | |
| US20130153509A1 (en) | Wastewater treatment comprising electrodissolution, flocculation and oxidation | |
| Li et al. | Treatment and recovery methods for leachate concentrate from landfill and incineration: A state-of-the-art review | |
| KR100445641B1 (en) | Desalting method for waste liquid or organic waste materials | |
| US20210292195A1 (en) | Anolyte as an additive for wastewater treatment | |
| JP2002126782A (en) | Method for cleaning organic sewage using electrolytic method | |
| KR100423568B1 (en) | Desalting method for garbage | |
| Farshi et al. | Reduction of color and COD of anaerobically treated distillary wastewater by electrochemical method | |
| Ungureanu et al. | Wastewater electrooxidation using stainless steel electrodes | |
| Bhagawati et al. | Separation of pollutants from pulp mill wastewater by electrocoagulation | |
| DE10004045A1 (en) | Treatment of chemical toilet effluent by electro-floatation and sedimentation reducing disposal costs | |
| KR20000021417A (en) | Device for pasteurizing and desalting food waste | |
| JP2008114209A (en) | Method for treating sludge | |
| RU2775602C9 (en) | Anolyte as an additive for purifying waste water | |
| RU2775602C1 (en) | Anolyte as an additive for purifying waste water | |
| Ungureanu et al. | Electrocoagulation in wastewater treatment. | |
| CN214495999U (en) | High salinity organic matter effluent disposal system | |
| RU2047569C1 (en) | Method for clarifying and disinfecting stock farm waste water | |
| JPH08257568A (en) | Sewage treatment method and apparatus | |
| JP2008200667A (en) | Method and apparatus for deodorizing, decolorizing and sterilizing water | |
| El-Ghzizela et al. | Brine recycling impact on nitrate removal and electrochemical disinfection performances: a case study of Sidi Taibi desalination plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant | ||
| N231 | Notification of change of applicant | ||
| LAPS | Lapse due to unpaid annual fee |