KR101352364B1 - Pulse uv reactor for treating reverse osmosis concentrated water - Google Patents
Pulse uv reactor for treating reverse osmosis concentrated water Download PDFInfo
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 238000001223 reverse osmosis Methods 0.000 title abstract description 67
- 239000012141 concentrate Substances 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 22
- 239000005416 organic matter Substances 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 150000002978 peroxides Chemical class 0.000 claims description 4
- 230000001678 irradiating effect Effects 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 238000011084 recovery Methods 0.000 abstract description 4
- 238000002203 pretreatment Methods 0.000 abstract description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 34
- 238000000354 decomposition reaction Methods 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 5
- 239000011368 organic material Substances 0.000 description 5
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 4
- 238000002835 absorbance Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
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- 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
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
- C02F1/325—Irradiation devices or lamp constructions
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/32—Details relating to UV-irradiation devices
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
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Abstract
본 발명은 역삼투압(RO) 농축수 처리를 위한 공정 및 그 장치에 관한 것으로서, 보다 상세하게는 역삼투압(RO) 공정에서 발생하는 고오염 농축수의 처리 효율을 높이는 방법 및 장치에 관한 것이다.
본 발명에 따른 처리 방법 및 장치는 RO 농축수의 색조를 저감한 후, RO 농축수를 자외선으로 처리하는 것을 특징으로 한다. 본 발명에 의해서 고색도의 RO 농축수를 자외선을 이용하여 신속하게 분해할 수 있게 되었으며, 물의 회수율을 높일 수 있게 되었다. 본 발명에 따른 RO 농축수 처리 장치는 규모가 작고, 전처리 공정과 RO처리공정이 공통적으로 UV를 이용할 수 있어 장치의 운전이 편리하다. The present invention relates to a process and apparatus for treating reverse osmosis (RO) concentrated water, and more particularly, to a method and an apparatus for increasing the treatment efficiency of highly contaminated concentrated water generated in a reverse osmosis (RO) process.
The treatment method and apparatus according to the present invention are characterized by treating the RO concentrate with ultraviolet rays after reducing the color tone of the RO concentrate. According to the present invention, it is possible to quickly decompose high-concentration RO concentrated water using ultraviolet rays, and to increase the recovery rate of water. RO concentrated water treatment apparatus according to the present invention is small in size, the pre-treatment process and RO treatment process can use UV in common, the operation of the device is convenient.
Description
본 발명은 역삼투압(RO) 공정 농축수 처리를 위한 공정 및 그 장치에 관한 것으로서, 보다 상세하게는 역삼투압(RO) 공정에서 발생하는 고오염 농축수의 처리 효율을 높이는 방법 및 장치에 관한 것이다. The present invention relates to a process and apparatus for treating reverse osmosis (RO) process concentrated water, and more particularly, to a method and apparatus for increasing the treatment efficiency of highly contaminated concentrated water generated in a reverse osmosis (RO) process. .
물 부족 문제가 심화되면서 하수 처리수로부터 물의 회수율을 높이기 위한 방안 중 하나로 역삼투압 장치에서 생성되는 RO 농축수를 처리하여 물의 회수율을 높이는 방안들이 개발되고 있다. As the problem of water shortage is intensified, one of the measures to increase the recovery rate of water from sewage treatment water has been developed to increase the recovery rate of water by treating RO concentrated water generated by reverse osmosis system.
RO 농축수의 경우, 도 1에서 도시된 바와 같이, 색도가 높고 다량의 유기물질이 포함되어 있으며, 역삼투막의 오염을 방지하기 위한 다양한 첨가제들이 포함되어 있다. In the case of RO concentrated water, as shown in FIG. 1, high chromaticity and a large amount of organic materials are included, and various additives are included to prevent contamination of the reverse osmosis membrane.
지에스건설 주식회사에 허여된 특허 제1035899호에서는 UV 살균기가 역삼투압 투과 전에 설치되어, 역삼투막이 오염되는 것을 방지하게 되고, 역삼투여과부에 의해 생성된 RO 농축수 중 일부는 한외여과부의 역세척수로 활용하고, 나머지 RO 투과수는 생물막 여과부를 이용해서 처리한 후 수계로 방류하는 방안을 개시하고 있다. In Patent No. 1035899 issued to GS E & C, the UV sterilizer is installed before reverse osmosis permeation to prevent contamination of the reverse osmosis membrane, and some of the RO concentrate produced by the reverse osmosis filtration unit is used as the backwash water of the ultrafiltration unit. In addition, the remaining RO permeate is treated using a biofilm filtration unit, and then disclosed as a method of discharge into the water system.
쿠리타 고교 가부시키가이샤에 의해서 출원된 특허 공개 제2007-0096857호에서는 역삼투막의 바이오파울링을 방지하기 위해서 다량의 스케일 방지제를 사용하고 있으며, 이 경우 RO 농축수에 포함된 스케일 방지제가 생물막 처리를 방해하는 문제를 해결할 수 있도록, 생물막 반응기 대신 농축수에 오존을 첨가하여 상기 농축수를 산화처리하는 산화처리 공정을 개시하고 있다. Patent Publication No. 2007-0096857, filed by Kurita Kogyo Co., Ltd., uses a large amount of anti-scaling agent to prevent biofouling of reverse osmosis membrane, in which case the anti-scaling agent contained in the RO concentrate is treated with biofilm treatment. In order to solve the problem of interference, an oxidation treatment process for oxidizing the concentrated water by adding ozone to the concentrated water instead of the biofilm reactor is disclosed.
하지만, 이러한 RO 농축수의 오존 산화 처리 공정은 통상적으로 농축수의 TOC에 대해서 5∼50 중량 배 정도를 필요로 할 뿐만 아니라, 처리 시간이 길기 때문에 대규모의 오존 반응탑을 사용하여 체류시간을 늘려줄 필요가 있을 뿐만 아니라, 잔존 오존을 제거하기 위해서 활성탄탑이 추가로 필요하게 되며, 처리 효율이 낮아 추가로 이온 교환탑이 필요하게 되는 문제가 있었다. However, the ozone oxidation process of RO concentrate usually requires about 5 to 50 times the weight of the TOC of the brine, and because the treatment time is long, a large ozone reaction tower can be used to increase the residence time. In addition to the need, an activated carbon tower is additionally required to remove residual ozone, and there is a problem that an ion exchange tower is additionally required due to low processing efficiency.
한편, RO 농축수를 자외선으로 처리하고자 할 경우에는 자외선의 투과거리가 짧아 램프 주변의 농축수만 처리되어 처리 시간이 오래 걸려 효율이 떨어지는 문제가 발생하게 된다. On the other hand, when the RO concentrated water is to be treated with ultraviolet rays, the transmission distance of the ultraviolet rays is short, so that only the concentrated water around the lamp is treated, resulting in a problem in that efficiency is reduced due to a long treatment time.
이에 따라, RO 농축수를 효과적으로 처리하여 물의 재사용율을 높일 수 있는 방안에 대한 요구가 계속되고 있다. Accordingly, there is a continuing need for a method for effectively treating RO concentrated water to increase the reuse rate of water.
본 발명에서 해결하고자 하는 과제는 높은 색도로 인해 자외선 유기물 분해에 대해 저항성이 큰 RO 농축수를 효율적으로 처리할 수 있는 방법을 제공하는 것이다.The problem to be solved by the present invention is to provide a method for efficiently treating RO concentrated water which is highly resistant to UV organic decomposition due to high chromaticity.
본 발명에서 해결하고자 하는 다른 과제는 높은 색도로 인해 자외선 유기물 분해에 대해 저항성이 큰 RO 농축수를 효율적으로 처리할 수 있는 장치를 제공하는 것이다. Another problem to be solved by the present invention is to provide an apparatus capable of efficiently treating RO concentrated water which is highly resistant to UV organic decomposition due to its high chromaticity.
상기와 같은 과제를 해결하기 위해서, 펄스 자외선을 이용하여 RO 농축수의 색조를 저감한 후, 펄스자외선을 이용하여 RO 농축수를 처리하는 것을 특징으로 한다. In order to solve the above problems, the color tone of the RO concentrate is reduced by using pulsed ultraviolet rays, and then the RO concentrate is treated using pulse ultraviolet rays.
본 발명에 있어서, 상기 '펄스 자외선'은 자외선 램프로부터 자외선이 단속적으로 발생되는 것을 의미한다. In the present invention, the 'pulse ultraviolet' means that the ultraviolet light is intermittently generated from the ultraviolet lamp.
본 발명에 있어서, 상기 '처리한다'는 것은 환경 기준에 맞게 유기물을 분해한다는 것을 의미하며, 상기 환경 기준은 공정의 위치, 국가, 규례 등에 의해서 달라질 수 있다. In the present invention, the term 'treatment' means decomposing organic matters in accordance with environmental standards, and the environmental standards may vary depending on the location of the process, country, and regulations.
본 발명에 있어서, '처리반경'은 자외선 램프로부터 자외선을 방사하여 과산화물을 분해할 수 있는 거리까지의 영역을 의미하며, 보통 램프로부터 반응기 벽면까지의 최소 거리를 가르키는 것으로 의도된다. In the present invention, the 'treatment radius' means the area from the ultraviolet lamp to the distance from which ultraviolet rays can be decomposed to decompose peroxide, and is usually intended to indicate the minimum distance from the lamp to the reactor wall.
본 발명에 있어서, 상기 용어 '색도의 저감" "색도의 감소"는 동일한 의미로 사용되며, 육안으로 관능적으로 관측시 RO 농축수의 색깔이 옅어지거나 혹은 없어져서 자외선의 투과 거리가 길어지는 것을 의미하며, 수치적으로 색도가 50 %이상, 바람직하게는 60 %, 보다 더 바람직하게는 70% 이상 감소된 것을 의미한다. In the present invention, the term 'decrease in chromaticity' and 'decrease in chromaticity' are used in the same sense, meaning that the color of the RO concentrate becomes thinner or disappears when visually observed with the naked eye, and thus the transmission distance of ultraviolet rays is increased. Numerically reduced by at least 50%, preferably at least 60% and even more preferably at least 70%.
본 발명에 있어서, 상기 RO 농축수는 자외선이 투과될 수 있는 거리보다 적은 반경을 가지는 색조 저감조를 통과하면서 RO 농축수의 색도가 감소된다. 본 발명에 실시에 있어서, 자외선이 투과될 수 있는 거리는 농축수의 종류와 자외선 램프 및 파워서플라이 등에 따라 달라질 수 있으며, 통상 색도가 50 미만인 RO 농축수의 경우 10 cm 이하, 바람직하게는 5 cm 이하이다. In the present invention, the RO concentrated water is reduced in chromaticity of the RO concentrated water while passing through the color tone reduction tank having a radius less than the distance that can be transmitted through ultraviolet rays. In the present invention, the distance through which ultraviolet light can be transmitted may vary depending on the type of concentrated water, ultraviolet lamps and power supplies, and in the case of RO concentrated water having a chromaticity of less than 50, 10 cm or less, preferably 5 cm or less. to be.
본 발명에 있어서, 펄스 자외선을 방출하는 자외선 램프와 자외선 투과길이 보다 적은 처리 반경을 가지는 색조 저감조와; 색조 저감된 RO 농축수에 포함된 유기물을 펄스 자외선을 방출하는 자외선 램프를 이용하여 분해하는 유기물 분해조를 포함하여 이루어진다.According to the present invention, there is provided an ultraviolet lamp for emitting pulsed ultraviolet rays, and a color tone reduction tank having a treatment radius smaller than the ultraviolet ray transmission length; It comprises an organic material decomposition tank for decomposing the organic matter contained in the color tone reduced RO concentrated water using an ultraviolet lamp for emitting pulsed ultraviolet light.
이론적으로 한정된 것은 아니지만, RO 농축수의 유기물(색조 포함)을 자외선으로 처리하기 전에, 전처리조에서 색조를 저감시켜 자외선의 투과 길이를 늘여줌으로써, 자외선 처리조에서 유기물의 분해가 효과적으로 이루어지게 된다. RO 농축수의 색조 저감 속도가 유기물 분해보다 1/10 정도에 불과하여 색조 저감과 유기물 분해를 분리하는 것이 훨씬 효과적이다. Although not limited in theory, the organic matter (including the hue) of the RO concentrate is treated with ultraviolet rays, and thus, by reducing the color tone in the pretreatment bath to increase the transmission length of the ultraviolet light, the decomposition of the organic matter in the ultraviolet light treatment tank becomes effective. The color reduction rate of RO concentrate is only 1/10 of that of organic decomposition, so it is much more effective to separate color reduction and organic decomposition.
본 발명에 있어서, 색도의 저감 공정은 과산화수소와 같이 자외선에 의해서 라디칼을 형성하는 물질을 자외선으로 분해하고, 분해된 라디칼이 RO 농축수 중에서 색조를 나타내는 물질을 분해하는 과정을 통해서 이루어진다. In the present invention, the process of reducing the chromaticity is carried out by decomposing a substance which forms radicals by ultraviolet rays, such as hydrogen peroxide, into ultraviolet rays, and decomposing the substance which shows the color tone in RO concentrated water.
본 발명의 실시에 있어서, 상기 투과 거리의 향상과 램프의 과열과 이에 따른 잦은 교체를 방지하기 위해, 자외선 램프에 펄스 파형의 전압을 인가하여 자외선을 조사하는 것이 바람직하다. In the practice of the present invention, in order to improve the transmission distance and to prevent overheating of the lamp and frequent replacement thereof, it is preferable to irradiate ultraviolet rays by applying a pulse waveform voltage to the ultraviolet lamp.
본 발명에 있어서, 상기 색조 저감조는 관형 반응기 형태의 처리조와, 상기 처리조의 길이 방향으로 중앙부에 설치된 자외선 램프와, RO 농축수가 유입되는 유입구와 색조 저감된 RO 농축수가 배출되는 배출구가 형성되며, 유입되는 RO 농축수에 과산화수소를 투입할 수 있는 과산화수소 투입구와 자외선 램프에 펄스전압을 인가할 수 있는 파워서플라이를 포함하여 이루어진다. In the present invention, the color tone reduction tank is formed of a tubular reactor type treatment tank, an ultraviolet lamp installed in the center portion in the longitudinal direction of the treatment tank, an inlet for introducing RO concentrated water and an outlet for discharging the reduced color RO concentrated water. It includes a hydrogen peroxide inlet for introducing hydrogen peroxide into the RO concentrated water and a power supply for applying a pulse voltage to the ultraviolet lamp.
본 발명에 있어서, 색도가 저감된 RO 농축수는 투광성이 높아지게 되므로 자외선을 이용한 유기물 분해 장치를 이용하여 분해할 수 있으며, 바람직하게는 펄스 자외선을 이용한 분해장치를 이용할 수 있다. 상기 펄스 자외선을 이용한 분해 장치는 본 출원인에게 허여된 특허 제0664557호에 기재된 장치를 사용할 수 있다.In the present invention, since the RO concentrated water having reduced chromaticity becomes light-transmitting, it can be decomposed using an organic material decomposition apparatus using ultraviolet rays, and preferably, a decomposition apparatus using pulsed ultraviolet rays can be used. As the decomposition device using the pulsed ultraviolet light, the device described in Patent No. 0664557 to the present applicant can be used.
본 발명의 실시에 있어서, 상기 펄스 자외선을 이용한 유기물 분해장치는 펄스자외선을 이용하여 과산화수소를 분해해서 라디칼을 형성하고, 라디칼이 유기물을 분해시키는 방식을 이루어진다. In the practice of the present invention, the organic material decomposing apparatus using the pulsed ultraviolet light is formed by decomposing hydrogen peroxide using pulsed ultraviolet light to form radicals, and radicals decomposing organic matter.
본 발명에 의해서 고색도의 RO 농축수를 자외선을 이용하여 신속하게 분해할 수 있게 되었으며, 물의 회수율을 높일 수 있게 되었다. According to the present invention, it is possible to quickly decompose high-concentration RO concentrated water using ultraviolet rays, and to increase the recovery rate of water.
본 발명에 따른 RO 농축수 처리 장치는 규모가 작고, 전처리 공정과 RO처리공정이 공통적으로 UV를 이용할 수 있어 장치의 운전이 편리하다. RO concentrated water treatment apparatus according to the present invention is small in size, the pre-treatment process and RO treatment process can use UV in common, the operation of the device is convenient.
도 1은 RO 농축수와 색조 저감조에서 색조 저감을 거친 상태의 RO 농축수이다.
도 2는 RO 농축수의 처리 공정을 나타내는 연속 공정도이다.
도 3은 시험용 RO 농축수의 처리 장치의 실물 사진이다. FIG. 1 is RO concentrated water in a state in which color reduction is performed in a RO concentrated water and a color tone reduction tank.
2 is a continuous process chart showing a process for treating RO concentrated water.
3 is a real photograph of a treatment apparatus for RO concentrated water for test.
이하, 실시예를 통해서 본 발명을 상세하게 설명한다. 하기 실시예는 본 발명을 상세하게 설명하는 것이지만, 본 발명을 제한하기 위한 것은 아니며, 항상 본 발명을 예시하기 위한 것으로 이해되어야 한다. Hereinafter, the present invention will be described in detail with reference to examples. The following examples illustrate the invention in detail, but are not intended to limit the invention and should be understood to always illustrate the invention.
도 1에서 도시된 바와 같이 RO 농축수는 진한 색깔을 띠고 있으며, 펄스 UV를 조사하여 RO 농축수에 투입된 과산화수소를 분해할 수 있는 거리가 8~9 cm 내외에 불과하다. 이에 반해, 색조 저감된 RO 농축수는 육안으로 관능 검사시 사실상 무색 투명하며, RO 농축수에 포함된 과산화수소를 분해할 수 있는 거리가 20cm 이상이다. As shown in FIG. 1, the RO concentrate has a dark color, and a distance capable of decomposing hydrogen peroxide injected into the RO concentrate by irradiating pulsed UV is only about 8 to 9 cm. In contrast, the reduced color RO concentrate is virtually colorless and transparent when visually examined, and the distance to decompose hydrogen peroxide contained in the RO concentrate is 20 cm or more.
도 2에서 도시된 바와 같이, 본 발명에 따른 RO 농축수 처리 공정은 RO 농축수의 색조를 저감시키는 색조 저감조(100)와 RO 농축수의 유기물을 분해하는 유기물 처리조(200)으로 이루어진다. As shown in FIG. 2, the RO concentrated water treatment process according to the present invention includes a
상기 색조 저감조(100)는 원통 또는 직육면체 형태의 반응조(110)와; 상기 반응조의 중앙부에 반응조의 길이 방향을 따라 설치된 관형 UV 램프(120)와; RO 농축수가 유입되는 유입구(130)와; 색조 저감된 RO 농축수가 배출되는 배출구(140)과; 상기 UV램프(120)에 펄스 파형의 전원을 인가하는 파워서플라이(150)과 UV에 의해서 분해되어 색조 발현물질을 분해하는 과산화수소(160)을 포함하여 구성된다. The color
반응조(110)에서 벽면까지의 길이(L)는 UV가 RO 농축수를 투과하여 과산화수소를 분해할 수 있는 거리보다 짧으며, 체류시간은 유출되는 RO 농축수의 색조 검사를 통해서 제어된다. The length L from the
상기 유기물 처리조(200)는 원통 또는 직육면체 형태의 반응조(210)와; 상기 반응조의 중앙부에 반응조의 길이 방향을 따라 설치된 관형 UV 램프(220)와; 색조저감된 RO 농축수가 유입되는 유입구(230)와; 유기물이 분해된 RO 농축수가 배출되는 배출구(240)과; 상기 UV램프(220)에 펄스 파형의 전원을 인가하는 파워서플라이(150)과 UV에 의해서 분해되어 유기물을 분해하는 과산화수소를 포함하여 구성된다. The organic
반응조(210)에서 벽면까지의 길이(L)는 UV가 색조 저감된 투명한 RO 농축수를 투과하여 과산화수소를 분해할 수 있는 거리보다 짧으며, 체류시간은 유출되는 RO 농축수의 유기물 검사를 통해서 제어된다. The length (L) from the
실시예 1.Example 1.
RO에서 배출된 RO 농축수(색조:45, CODcr: 32)에 과산화수소를 300 ppm으로 주입한 후, 과산화수소를 포함하는 RO 농축수 20 L를 약 1분 동안에 걸쳐 UV 램프로부터 벽면까지의 길이가 8 cm인 직육면체 형태의 색조 저감조를 통과시킨 후, UV 램프로부터 최대 거리가 20 cm인 UV 처리조에 투입하였다. After injecting 300 ppm of hydrogen peroxide into RO concentrated water (Tint: 45, CODcr: 32) discharged from the RO, 20 L of RO concentrated water containing hydrogen peroxide was added to the surface from the UV lamp to the wall for 8 minutes. After passing through the color reduction tank of the rectangular parallelepiped form, it was put into a UV treatment tank having a maximum distance of 20 cm from the UV lamp.
색조저감조와 유기물 처리조는 제논이 충진된 UV 램프에 펄스형 파워서플라이를 이용하여 가동 전압을 약 1,800V, 순간전류 약 1,000A, 가동 시간 150μsec, 초당 가동 횟수 10회로 유지되는 펄스파 전원을 인가하여 펄스 UV를 방출하였다.The color tone reduction tank and organic matter treatment tank apply pulse wave power to the Xenon-filled UV lamp by using a pulsed power supply and operating voltage of about 1,800V, instantaneous current of about 1,000A, operation time of 150μsec, and operation frequency of 10 times per second. Pulsed UV was emitted.
유기물 처리조에서 시간에 따른 CODcr, H2O2농도, 및 색도를 측정하였다. 결과를 표 1 및 도 4 내지 도 6에 나타내었다. CODcr, H 2 O 2 concentration, and color over time were measured in the organic treatment tank. The results are shown in Table 1 and FIGS. 4 to 6.
비교실시예 1Comparative Example 1
RO에서 배출된 RO 농축수(색조:45, CODcr: 32)에 과산화수소를 300 ppm으로 주입한 후 UV 램프로부터 최대 거리가 20 cm인 UV 처리조에 투입하였다. 유기물 처리조에서 시간에 따른 CODcr, H2O2흡광도 제거율, 및 색도를 측정하였다. 결과를 표 1(색도), 표 2(CODcr), 및 표 3(과산화수소 흡광도 제거율) 및 도 4 내지 도 6에 나타내었다. Hydrogen peroxide was injected at 300 ppm into RO concentrated water (color tone: 45, CODcr: 32) discharged from the RO, and then charged into a UV treatment tank having a maximum distance of 20 cm from the UV lamp. CODcr, H 2 O 2 absorbance removal rate, and chromaticity over time were measured in an organic treatment tank. The results are shown in Table 1 (chromaticity), Table 2 (CODcr), and Table 3 (hydrogen peroxide absorbance removal rate) and FIGS. 4 to 6.
* 초기 CODcr의 농도가 증가한 것은 분해되지 않은 과산화수소가 CODcr에 포함되기 때문임.* The initial concentration of CODcr is increased because undecomposed hydrogen peroxide is included in CODcr.
* 자외선에 의해서 과산화수소의 분해가 진행됨에 따라 과산화수소의 흡광도가 떨어지게 됨.* As the peroxide decomposition proceeds by ultraviolet rays, the absorbance of hydrogen peroxide decreases.
Claims (4)
상기 RO농축수에 과산화물을 투입하고 펄스 자외선을 조사하여 RO 농축수의 색조를 저감하는 색조 저감조; 및
색조 저감된 RO 농축수에 펄스 자외선을 조사하여 유기물을 분해하는 유기물 처리조;를 포함하는 RO 농축수 처리 장치.In the apparatus for treating RO concentrated water containing organic matter and color tone,
A color tone reduction tank for introducing peroxide into the RO concentrate and irradiating pulsed ultraviolet rays to reduce the color tone of the RO concentrate; And
RO concentrated water treatment apparatus comprising; organic substance treatment tank for decomposing organic matter by irradiating pulsed ultraviolet rays to the RO concentrated water reduced in color tone.
원통 또는 관형 반응조;
상기 반응조에 설치되는 UV램프;
상기 UV램프에 펄스 전압을 인가하는 파워 서플라이;
과산화물을 포함하는 RO 농축수가 유입되는 유입구; 및
색조 저감된 RO 농축수가 배출되는 배출구를 포함하는 RO 농축수 처리 장치.The method of claim 2, wherein the color tone reduction tank
Cylindrical or tubular reactors;
UV lamp installed in the reaction tank;
A power supply for applying a pulse voltage to the UV lamp;
An inlet to which RO concentrate containing peroxide is introduced; And
RO concentrated water treatment apparatus comprising an outlet for discharging the tinted RO concentrate.
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| JPH1190462A (en) * | 1997-09-22 | 1999-04-06 | Shokuhin Sangyo Kankyo Hozen Gijutsu Kenkyu Kumiai | Decoloring treatment of colored waste water and apparatus therefor |
| JP2005131450A (en) | 2003-10-28 | 2005-05-26 | Japan Organo Co Ltd | Method and apparatus for treating wastewater |
| KR200434458Y1 (en) * | 2006-09-20 | 2006-12-20 | 주식회사 디엠퓨어텍 | Concentrated Water Recycling Treatment System Using Reverse Osmosis |
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| JP2545946B2 (en) | 1988-08-29 | 1996-10-23 | 日揮株式会社 | Waste liquid treatment method and treatment device |
| JPH1190462A (en) * | 1997-09-22 | 1999-04-06 | Shokuhin Sangyo Kankyo Hozen Gijutsu Kenkyu Kumiai | Decoloring treatment of colored waste water and apparatus therefor |
| JP2005131450A (en) | 2003-10-28 | 2005-05-26 | Japan Organo Co Ltd | Method and apparatus for treating wastewater |
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