KR20020005863A - Preparation method of chlorine dioxide, an apparatus used therefor and uses thereof - Google Patents

Preparation method of chlorine dioxide, an apparatus used therefor and uses thereof Download PDF

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KR20020005863A
KR20020005863A KR1020000039341A KR20000039341A KR20020005863A KR 20020005863 A KR20020005863 A KR 20020005863A KR 1020000039341 A KR1020000039341 A KR 1020000039341A KR 20000039341 A KR20000039341 A KR 20000039341A KR 20020005863 A KR20020005863 A KR 20020005863A
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chlorine dioxide
chlorine
naclo
inlet
sodium chlorite
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KR1020000039341A
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Korean (ko)
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KR100376913B1 (en
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조정혁
오창현
오창석
이기수
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박호군
한국과학기술연구원
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    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B11/00—Oxides or oxyacids of halogens; Salts thereof
    • C01B11/02—Oxides of chlorine
    • C01B11/022—Chlorine dioxide (ClO2)
    • C01B11/023—Preparation from chlorites or chlorates
    • C01B11/024—Preparation from chlorites or chlorates from chlorites
    • 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
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/0053—Details of the reactor
    • B01J19/006—Baffles
    • 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
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/18—Stationary reactors having moving elements inside
    • B01J19/1893—Membrane reactors
    • 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00164—Controlling or regulating processes controlling the flow
    • 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00177—Controlling or regulating processes controlling the pH
    • 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00761—Details of the reactor
    • B01J2219/00763—Baffles

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  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

PURPOSE: A method for preparing chlorine dioxide in high yield is accomplished by proper adjustment of the supply ratio of sodium chlorite and chlorine, by which hydrogen-ion concentration condition is optimized. The chlorine dioxide, when applied to cooling water, showed excellent bactericidal effect against Legionella pneumophila when applied to cooling water. In addition, chlorine dioxide has proven to be effective in eliminating alien algae in cultivating lava. CONSTITUTION: In the generation of chlorine dioxide using sodium chlorite and chlorine, by using a flowmeter and a chemical pump, Cl2 supply rate and NaClO2 supply rate are controlled to adjust pH in the range 1.9 to 2.0. For the smooth dissolving of chlorine gas into sodium chlorite solution, chlorine gas is supplied through glass wool(7), and a baffle(8) is installed to be perpendicular to a sodium chlorite/chlorine inlet. The baffle plays role in converting laminar flow to turbulent flow within short time.

Description

이산화염소의 제조방법, 그에 이용되는 장치 및 이산화염소의 용도 {PREPARATION METHOD OF CHLORINE DIOXIDE, AN APPARATUS USED THEREFOR AND USES THEREOF}Method for preparing chlorine dioxide, apparatus used therefor and use of chlorine dioxide {PREPARATION METHOD OF CHLORINE DIOXIDE, AN APPARATUS USED THEREFOR AND USES THEREOF}

본 발명은 이산화염소를 고효율로 제조하는 방법, 제조장치 및 이산화염소를 이용한 수처리 기술에 관한 것이다. 더욱 구체적으로 본 발명은 이산화염소를 고효율, 고순도로 제조하는 방법, 이를 달성하기 위한 장치, 및 이산화염소의 다양한 수처리 기술 용도에 관한 것이다.The present invention relates to a method for producing chlorine dioxide with high efficiency, a manufacturing apparatus and a water treatment technology using chlorine dioxide. More specifically, the present invention relates to a process for producing chlorine dioxide with high efficiency, high purity, apparatus for achieving this, and the use of various water treatment techniques of chlorine dioxide.

이산화염소는 대표적인 소독제의 일종으로서 전세계적으로 하루 10,000톤 정도 생산되고 있다.Chlorine dioxide is a representative disinfectant produced around 10,000 tons per day worldwide.

이산화염소의 제법으로는 아래의 방법이 일반적으로 알려져 있다.The following method is generally known as a manufacturing method of chlorine dioxide.

NaClO2+ ½Cl2→ ClO2+ NaClNaClO 2 + ½Cl 2 → ClO 2 + NaCl

5NaClO2+ 4HCl → 4ClO2+ 5NaCl + 2H2O5NaClO 2 + 4HCl → 4ClO 2 + 5NaCl + 2H 2 O

상기 중, HCl을 이용하는 방법은 순수한 이산화염소를 얻을 수 없다는 단점이 있다. 종래의 방법의 가장 큰 약점은 ClO2외에 염소와 클로라이트가 부산물로 생성된다는 것이다.Among the above, the method using HCl has a disadvantage in that pure chlorine dioxide cannot be obtained. The major drawback of the conventional process is that in addition to ClO 2 , chlorine and chlorite are produced as by-products.

따라서 본 발명의 한가지 목적은 이산화염소를 고효율로 제조하는 방법을 제공하는 것이다.Accordingly, one object of the present invention is to provide a method for producing chlorine dioxide with high efficiency.

본 발명의 또 다른 목적은 이산화염소를 고효율로 제조하는데 효과적인 이산화염소의 제조장치를 제공하는 것이다.Still another object of the present invention is to provide an apparatus for producing chlorine dioxide, which is effective for producing chlorine dioxide with high efficiency.

본 발명의 또 다른 목적은 각종 수처리 기술에 이산화염소를 사용하기 위한 이산화염소의 용도를 제공하는 것이다.It is another object of the present invention to provide the use of chlorine dioxide for the use of chlorine dioxide in various water treatment techniques.

도 1은 본 발명에 따른 이산화염소 제조장치의 일례이다.1 is an example of a chlorine dioxide production apparatus according to the present invention.

도 2는 본 발명에 따른 이산화염소 제조장치의 일례이다.2 is an example of a chlorine dioxide production apparatus according to the present invention.

도면의 주요부분에 대한 부호의 설명Explanation of symbols for main parts of drawings

1. pH 미터 2. ClO2유출구1. pH meter 2. ClO 2 outlet

3. Cl2유량계 4. Cl2주입구3.Cl 2 flow meter 4.Cl 2 inlet

5. NaClO2정량펌프 6. NaClO2주입구5. NaClO 2 metering pump 6. NaClO 2 inlet

7. 미세유리섬유 8. 배플 (유체조절장치)7. Fine Glass Fiber 8. Baffle (Fluid Control Device)

9. 교반기9. Stirrer

본 발명자들은 종래기술의 문제점을 해소하고자 연구한 결과, NaClO2와 Cl2를반응시키는데 있어서 Cl2와 NaClO2의 공급량을 적절히 조절함으로써 pH를 일정범위내로 유지시키고, 이들 반응물의 최대 혼합 효과를 거둘 수 있도록하는 반응장치를 이용함으로써 이산화염소를 고효율로 제조할 수 있음을 발견하였다.The present inventors have studied to solve the problems of the prior art, the pH is maintained within a certain range by appropriately adjusting the amount of Cl 2 and NaClO 2 in the reaction of NaClO 2 and Cl 2 to achieve the maximum mixing effect of these reactants It has been found that chlorine dioxide can be produced with high efficiency by using a reaction apparatus.

더욱 상세히 설명하면, 첨부된 도 1 및 도 2에 예시된 바와 같이, 반응장치기 상단부에 반응용액의 pH를 1.9~2.0 범위로 모니터링하기 위한 pH meter1, pH meter와 대칭되는 위치에 설치된 이산화염소 유출구2, Cl2의 주입구에 별도 설치된 유량계3, 반응장치의 하단부에 좌우 대칭으로 설치된 Cl2주입구4및 NaClO2주입구6, NaClO2의 공급량을 조절하기 위한 정량펌프5, Cl2공급관 중에 설치된 미세유리섬유막7, Cl2및 NaClO2의 주입구와 수직방향으로 설치된 배플8및 반응장치 바닥 중앙부에 교반기9를 구비한 본 발명의 반응장치를 이용함으로써 이산화염소를 고효율로 제조하는 것이 가능하다.More specifically, as illustrated in FIGS. 1 and 2, a chlorine dioxide outlet installed at a position symmetrical with a pH meter 1 and a pH meter for monitoring the pH of the reaction solution in the range of 1.9 to 2.0 at the upper end of the reactor. 2 , flow meter 3 separately installed at the inlet of Cl 2 , Cl 2 inlet 4 and NaClO 2 inlet 6 installed at the bottom of the reactor symmetrically, the metering pump 5 to control the supply of NaClO 2 , fine glass installed in the Cl 2 supply pipe It is possible to produce chlorine dioxide with high efficiency by using the reaction apparatus of the present invention having a baffle 8 installed vertically with the inlets of the fiber membranes 7 , Cl 2 and NaClO 2 and the stirrer 9 at the center of the bottom of the reactor.

NaClO2와 Cl2를 반응시킴에 있어서, 유량계를 이용하여 Cl2의 공급속도와 정량펌프를 이용하여 NaClO2의 공급속도를 조정하여 pH를 1.9 ~ 2.0의 범위로 유지시킴으로써 이산화염소를 고효율로 제조할 수 있다. 이 때, Cl2는 미세유리섬유를 통과시켜 공급함으로써 염소가 NaClO2용액과 잘 혼합되도록 한다. 이를 위하여, 배플을 Cl2, NaClO2의 주입구와 수직이 되도록 설치한다. 본 발명의 이산화염소 제조장치에 설치된 배플은 유량의 흐름을 라미나(laminar) 흐름에서 터뷸런트(turbulent) 흐름으로 바꾸어 주는 역할을 한다. 즉, 배플을 이용함으로 해서 반응물을 신속하게 혼합시킬 수 있음은 물론 최대 혼합효과를 얻을 수 있다. 이와 같이, 반응물의 pH, 접촉시간, 혼합효과를 최적 수준으로 유지함으로써 이산화염소를 효율적으로 제조하는 것이 가능하다. 또한 도 2에서와 같이 Cl2와 NaClO2용액의 공급관을 반응장치의 중앙부로 설치하여 Cl2가 NaClO2상부로 직접 공급되도록 할 수도 있다.In reacting NaClO 2 with Cl 2 , chlorine dioxide is produced with high efficiency by maintaining the pH in the range of 1.9 to 2.0 by adjusting the feed rate of Cl 2 using a flow meter and the feed rate of NaClO 2 using a metering pump. can do. At this time, Cl 2 is supplied through the fine glass fiber so that chlorine is well mixed with the NaClO 2 solution. For this purpose, the baffle is installed to be perpendicular to the inlet of Cl 2 , NaClO 2 . The baffle installed in the chlorine dioxide production device of the present invention serves to change the flow of the flow from the laminar flow to the turbulent flow. In other words, by using the baffle, the reactants can be quickly mixed and the maximum mixing effect can be obtained. As such, it is possible to efficiently prepare chlorine dioxide by maintaining the pH, contact time, and mixing effect of the reactants at optimum levels. Also, as shown in FIG. 2, a supply tube of Cl 2 and NaClO 2 solutions may be installed at the center of the reactor so that Cl 2 may be directly supplied to the upper portion of NaClO 2 .

상기한 바와 같이, Cl2와 NaClO2의 혼합액의 pH를 1.9 ~ 2.0 범위로 유지시키고, 반응물의 접촉시간, 접촉효율을 최적화시키는데 적합한 정도로 반응물을 잘 혼합시킴으로써 본 발명의 목적을 달성할 수 있다. 바람직하게는, 도 1 및 도 2에 예시된 바와 같은 반응장치를 이용하는 것이 좋다. 이하 실시예를 들어 본 발명을 설명하나 본 발명의 범위가 이에 한정되는 것은 아니다.As described above, the object of the present invention can be achieved by maintaining the pH of the mixture of Cl 2 and NaClO 2 in the range of 1.9 to 2.0, and mixing the reactants well to the extent suitable for optimizing the contact time and the contact efficiency of the reactants. Preferably, it is preferable to use a reactor as illustrated in FIGS. 1 and 2. Hereinafter, the present invention will be described with reference to Examples, but the scope of the present invention is not limited thereto.

실시예 1Example 1

25% NaClO2용액 (동양화학 제조) 100ml를 3800ml의 물에 희석하였다. 이 용액을 정량펌프를 이용하여 도 1의 제조장치 오른쪽 하단의 주입구를 통해 반응용기에 주입하였다. 동시에, 염소를 유량계를 이용하여 미세유리섬유를 통해 조절하면서 반응기에 투입하였다. 교반기를 작동시키자 배플에 의해 순간적으로 교반이 효율적으로 일어났다. 반응용액의 pH가 1.9 ~ 2.0이 되도록 유량계와 정량펌프를 조절하여 상부로 이산화염소를 오버플로우 시켜 받아내었다. 얻어진 이산화염소의 농도는 4,000 ppm, 수율은 NaClO2기준으로 98.0%였다.100 ml of a 25% NaClO 2 solution (made by Dongyang Chemical) was diluted in 3800 ml of water. This solution was injected into the reaction vessel through the inlet of the lower right of the manufacturing apparatus of Figure 1 using a metering pump. At the same time, chlorine was introduced into the reactor while controlling it through the fine glass fibers using a flow meter. When the stirrer was turned on, agitation occurred efficiently by the baffle. The flow rate and the metering pump were adjusted so that the pH of the reaction solution was 1.9 to 2.0. The obtained chlorine dioxide had a concentration of 4,000 ppm and a yield of 98.0% based on NaClO 2 .

한편, 상기한 바와 같이 제조된 이산화염소는 각종 수처리에 이용될 수 있다.On the other hand, chlorine dioxide prepared as described above can be used for various water treatment.

김 양식에 있어서 잡조류의 제거Removal of algae in seaweed farming

김양식에 있어서 가장 큰 문제점은 김에 파래 등 잡조류가 공생한다는 것이다. 파래 등 잡조류가 부착될 경우 상품가치가 현저히 저하된다. 이를 방지하기 위해 어민들은 염산을 사용하기도 한다. 폐 염산의 경우는 물을 3:7 정도 첨가하여 희석하여 사용하고 진한 염산을 이용할 경우에는 10배 희석하여 사용한다. 이 때 염산이 과량으로 해수에 녹아들어가서 해수를 오염시킴으로 해서 생태계에 심각한 위험을 초래하고 있다.The biggest problem with seaweed farming is that seaweed and other algae symbiotic. If miscellaneous goods such as greens are attached, the value of commodities decreases significantly. To prevent this, fishermen may use hydrochloric acid. In the case of waste hydrochloric acid, dilute it with water by adding about 3: 7, and in case of using concentrated hydrochloric acid, dilute it 10 times. At this time, hydrochloric acid is excessively dissolved in seawater and contaminates the seawater, which causes serious danger to the ecosystem.

이를 방지하기 위해 정부는 염산 대신 유기산을 사용하도록 하고 있으나, 이와 같은 유기산은 그 주성분이 구연산, 개미산 등으로 되어 있어, 산도가 매우 약해서 잡조 제거능력이 매우 미미하다. 이 때문에 김 양식업자들은 유기산의 사용을 기피하고 있는 실정이다.In order to prevent this, the government has to use organic acid instead of hydrochloric acid, but such organic acid is mainly composed of citric acid, formic acid, etc., the acidity is very weak, so the ability to remove algae is very small. For this reason, the aquaculture farmers are avoiding the use of organic acids.

본 발명에서는 이산화염소가 조류 제거에 탁월한 능력이 있음에 착안하여 이의 잡조 제거 실험을 실시한 바 획기적인 결과를 얻었다. 즉, 이산화염소를 0.1 ppm ~ 20ppm 범위로 김 양식에 응용하여 90% 내지 100% 잡조 제거 효능을 얻을 수 있었다. 사용방법은 소형 선박에 이산화염소 용액을 1톤 정도 준비한 후 양식 김을 담구었다 빼는 침수식이나 양식 김에 이산화염소 용액을 직접 분무하는 분무식이가능하다.In the present invention, the chlorine dioxide has an excellent ability to remove algae, and carried out the experiment of the removal of the bird obtained a breakthrough results. That is, by applying chlorine dioxide to the seaweed farming in the range of 0.1 ppm to 20ppm it was possible to obtain 90% to 100% of the removal of miscellaneous. The method can be prepared by immersing and removing aquaculture laver after preparing about 1 ton of chlorine dioxide solution in a small ship or spraying spraying chlorine dioxide solution directly on aquaculture laver.

실시예 2Example 2

본 발명에 따라 이산화염소 5 ppm 용액를 분무식으로 양식김에 분무하고, 비교를 위해, 시중에 유통되고 있는 유기산 원액을 50배 물에 희석한 후 마찬가지 방법으로 사용하여, 그 결과를 비교하자, 유기산으로 처리된 양식김에서는 잡조류가 원 상태 그래도 잔류하였으나, 본 발명에 따라 이산화염소로 처리된 양식김에 있어서는 잡조류가 모두 제거되고 김에는 아무런 영향이 없는 것으로 나타났다.In accordance with the present invention, a 5 ppm solution of chlorine dioxide was sprayed into the aquaculture laver, and for comparison, the organic acid stock solution in the market was diluted in 50 times water and then used in the same manner, and the results were compared. In the cultured seaweed treated, the algae remained intact, but in the cultured seaweed treated with chlorine dioxide according to the present invention, all the algae were removed and there was no effect on the seaweed.

실시예 3Example 3

양식 김에 5ppm의 이산화염소를 처리하고 1주일 후 김의 성장 및 수확성에 미치는 영향을 평가하였다. 평가결과, 이산화염소는 김의 성장이나 수확량에 아무런 악영향을 미치지 않는 것으로 조사되었다.After 5 weeks of treatment with 5 ppm of chlorine dioxide in aquaculture laver, the effects on laver growth and harvest were evaluated. The results showed that chlorine dioxide had no adverse effect on the growth or yield of seaweed.

지하비축 석유, LPG 침출수의 세균소독 및 산화에 의한 독소제거Removal of toxins by bactericidal and oxidation of underground stockpiling oil and LPG leachate

국내에는 대량의 석유, LPG를 유사시에 대비하여 지하 동굴이나 암반에 비축하고 있다. 여기에 침출수에 둘러싸고 있는 형태인 바, 여기에 세균이 기생하여 비축유의 품질저하를 일으키고 있다. 이를 방지하기 위해, 몇가지 NaClO 등의 소독제가 사용되고 있으나, 살균력, 잔류성 등에 문제점이 노출되고 있다. 이산화염소를 0.1-5ppm 범위 농도로 침출수에 투여하면 세균, 바이러스, 원생동물, 독소를 전면적으로 제거할 수 있다.In Korea, a large amount of oil and LPG is stored in underground caves and rocks in case of emergency. Here, the form is surrounded by leachate, and bacteria are parasitic here, causing stock quality degradation. In order to prevent this, some disinfectants such as NaClO have been used, but problems such as sterilizing power and residual properties are exposed. When chlorine dioxide is administered to leachate in a concentration range of 0.1-5 ppm, it can completely eliminate bacteria, viruses, protozoa and toxins.

냉각수내의 레지오넬라균 소독Disinfect Legionella in Cooling Water

이산화염소는 또한, 냉각탑등의 냉각수에 서식하는 레지오넬라균을 소독하는데도 효과적이다. 올들어 발생한 레지오넬라증 양성환자가 지난 한해동안의 환자수에 육박한 가운데 백화점, 호텔, 병원 등 서울시내 다중이용시설 냉각탑 물의 15.7%가 레지오넬라균에 오염된 것으로 보고되었다.Chlorine dioxide is also effective in disinfecting Legionella bacteria in cooling water such as cooling towers. The number of patients with Legionellaosis positive this year has been close to the number of patients during the past year, and 15.7% of the water cooling towers in Seoul, including department stores, hotels and hospitals, are contaminated with Legionella.

이러한 레지오넬라균을 살균하기 위해 본 발명에서는 이산화염소를 0.5~5 ppm 범위로 사용하였다.In the present invention, in order to sterilize such Legionella, chlorine dioxide was used in the range of 0.5 to 5 ppm.

실시예 4Example 4

레지오넬라 (Legionella pneunophila) 균을 다음의 여러가지 농도의 이산화염소로 처리한 후 살균력을 측정하였다.The bactericidal power of Legionella pneunophila was treated with chlorine dioxide at various concentrations as follows.

ClO2농도ClO 2 concentration 0.10.1 0.50.5 1One 55 살균율 (%)Sterilization Rate (%) 9090 9999 100100 100100

본 발명에 따라, 이산화염소를 효과적으로 제조할 수 있는 방법, 그에 이용되는 장치, 및 이산화염소의 각종 수처리 용도가 제공된다.According to the present invention, a method capable of effectively producing chlorine dioxide, an apparatus used therein, and various water treatment applications of chlorine dioxide are provided.

Claims (6)

반응장치기 상단부에 반응용액의 pH를 모니터링하기 위한 pH meter, pH meter와 대칭되는 위치에 설치된 이산화염소 유출구, Cl2의 주입구에 별도 설치된 유량계, 반응장치의 하단부에 좌우 대칭으로 설치된 Cl2주입구 및 NaClO2주입구, NaClO2의 공급량을 조절하기 위한 정량펌프, Cl2공급관 중에 설치된 미세유리섬유막, Cl2및 NaClO2의 주입구와 수직방향으로 설치된 배플 및 반응장치 바닥 중앙부에 교반기가 장착된 이산화염소의 제조장치.PH meter for monitoring the pH of the reaction solution in the upper part of the reactor, chlorine dioxide outlet installed in a position symmetrical with the pH meter, Cl2Flow meter installed in the inlet of2Inlet and NaClO2Inlet, NaClO2Metering pump for controlling the supply of water, Cl2Cl glass fiber membrane installed in supply pipe2And NaClO2Baffles installed perpendicular to the inlet And a chlorine dioxide production apparatus equipped with a stirrer at the center of the bottom of the reactor. 제 1항에 있어서, 상기 장치가 첨부된 도 1 또는 도 2에 도시된 구조를 갖는 것이 특징인 반응장치.The reaction apparatus of claim 1, wherein the apparatus has the structure shown in FIG. 1 or 2 to which the apparatus is attached. NaClO2와 Cl2를 반응시켜 이산화염소를 제조하는데 있어서, 제 1항 또는 제 2항에 따른 장치를 이용하여, NaClO2와 Cl2의 공급속도를 조절함으로써 반응액의 pH를 1.9~2.0의 범위로 조절하여 반응시키는 것을 특징으로 하는 이산화염소의 제조방법.In reacting the NaClO 2 and the Cl 2 for preparing chlorine dioxide, of claim 1 or by an apparatus according to 2, NaClO 2, and the range of the pH of the reaction solution was 1.9 ~ 2.0 by adjusting the feed rate of the Cl 2 Method for producing chlorine dioxide, characterized in that the reaction by adjusting to. 김 양식에 있어서 이산화염소를 이용하여 잡조류를 제거하는 방법.A method for removing algae using chlorine dioxide in aquaculture. 이산화염소를 이용하여 지하 비축 석유, LPG 침출수의 살균, 산화 및 독소를 제거하는 방법.Method of sterilizing, oxidizing and removing toxins of underground reserve petroleum, LPG leachate using chlorine dioxide. 이산화염소를 이용하여 냉각수 레지오넬라균을 소독하는 방법.Method of disinfecting coolant Legionella using chlorine dioxide.
KR20000039341A 2000-07-10 2000-07-10 Preparation method of chlorine dioxide, an apparatus used therefor and uses thereof KR100376913B1 (en)

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KR100454547B1 (en) * 2002-04-29 2004-11-05 (주)에스케이 아쿠아테크 Apparatus for rapid producing chlorine dioxide
KR100456483B1 (en) * 2002-06-28 2004-11-09 (주)에스케이 아쿠아테크 Method and apparatus for producing chlorine dioxide useful in water filtration plant
KR100521652B1 (en) * 2002-04-29 2005-10-14 (주)데오테크 Apparatus and Method for Producing Chlorine Dioxide Gas in a High-Purity and Long-Term Storage of Chlorine Dioxide
KR100884330B1 (en) * 2008-08-14 2009-02-18 이승채 Apparatus and method for the production of pure aqueous chlorine dioxide solution
KR100902846B1 (en) * 2008-05-26 2009-06-16 이승채 Apparaus for the production of the pure organic chlrorine dioxide solution and the production method using thereof
KR101870283B1 (en) * 2017-10-31 2018-07-23 주식회사 프레시즘 System for sterilizing toilet using chlorine dioxide
US10881111B1 (en) * 2019-11-26 2021-01-05 NEOCL Co., Ltd. Composition for providing room temperature long-term constant-concentration chlorine dioxide solution in aqueous medium and preparation method thereof

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KR20190108905A (en) 2018-03-16 2019-09-25 주식회사 그린팜바이오 Composition comprising long-term stable chlorine dioxide and method for preparing thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100454547B1 (en) * 2002-04-29 2004-11-05 (주)에스케이 아쿠아테크 Apparatus for rapid producing chlorine dioxide
KR100521652B1 (en) * 2002-04-29 2005-10-14 (주)데오테크 Apparatus and Method for Producing Chlorine Dioxide Gas in a High-Purity and Long-Term Storage of Chlorine Dioxide
KR100456483B1 (en) * 2002-06-28 2004-11-09 (주)에스케이 아쿠아테크 Method and apparatus for producing chlorine dioxide useful in water filtration plant
KR100902846B1 (en) * 2008-05-26 2009-06-16 이승채 Apparaus for the production of the pure organic chlrorine dioxide solution and the production method using thereof
KR100884330B1 (en) * 2008-08-14 2009-02-18 이승채 Apparatus and method for the production of pure aqueous chlorine dioxide solution
KR101870283B1 (en) * 2017-10-31 2018-07-23 주식회사 프레시즘 System for sterilizing toilet using chlorine dioxide
US10881111B1 (en) * 2019-11-26 2021-01-05 NEOCL Co., Ltd. Composition for providing room temperature long-term constant-concentration chlorine dioxide solution in aqueous medium and preparation method thereof

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