KR100271562B1 - Device for measuring ozone decomposition rate and water treatment system using the same - Google Patents
Device for measuring ozone decomposition rate and water treatment system using the same Download PDFInfo
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- KR100271562B1 KR100271562B1 KR1019980041175A KR19980041175A KR100271562B1 KR 100271562 B1 KR100271562 B1 KR 100271562B1 KR 1019980041175 A KR1019980041175 A KR 1019980041175A KR 19980041175 A KR19980041175 A KR 19980041175A KR 100271562 B1 KR100271562 B1 KR 100271562B1
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- ozone
- water
- decomposition rate
- reagent
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- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title claims abstract description 162
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 238000000354 decomposition reaction Methods 0.000 title claims abstract description 35
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 26
- 235000000177 Indigofera tinctoria Nutrition 0.000 claims abstract description 10
- 238000002835 absorbance Methods 0.000 claims abstract description 10
- 229940097275 indigo Drugs 0.000 claims abstract description 10
- COHYTHOBJLSHDF-UHFFFAOYSA-N indigo powder Natural products N1C2=CC=CC=C2C(=O)C1=C1C(=O)C2=CC=CC=C2N1 COHYTHOBJLSHDF-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000004040 coloring Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 34
- 230000003647 oxidation Effects 0.000 claims description 32
- 238000007254 oxidation reaction Methods 0.000 claims description 32
- 238000002347 injection Methods 0.000 claims description 20
- 239000007924 injection Substances 0.000 claims description 20
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 10
- 238000004458 analytical method Methods 0.000 claims description 4
- 239000012153 distilled water Substances 0.000 claims description 2
- 230000004044 response Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 description 24
- 239000000126 substance Substances 0.000 description 16
- 230000000694 effects Effects 0.000 description 9
- 230000001590 oxidative effect Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 238000004886 process control Methods 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 235000009245 Elaeagnus multiflora Nutrition 0.000 description 1
- 240000000298 Elaeagnus multiflora Species 0.000 description 1
- 241000161982 Mogera robusta Species 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 230000000975 bioactive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005094 computer simulation Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- 238000013386 optimize process Methods 0.000 description 1
- 238000006385 ozonation reaction Methods 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000004148 unit process Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
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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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/0039—O3
-
- 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
- C02F2201/78—Details relating to ozone treatment devices
- C02F2201/782—Ozone generators
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Hydrology & Water Resources (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Water Supply & Treatment (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Environmental & Geological Engineering (AREA)
- Food Science & Technology (AREA)
- Combustion & Propulsion (AREA)
- Medicinal Chemistry (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
본 발명은 수처리 기술에 관한 것으로, 특히 오존분해속도 측정장치 및 그를 이용한 수처리 시스템에 관한 것이며, 오존분해속도의 실시간·연속 측정이 가능한 오존분해속도 측정장치 및 그를 이용하여 자동제어가 가능한 수처리 시스템을 제공하고자 한다. 본 발명은 발색시약이 오존과 일정 비율로 반응하여 탈색되어 오존농도와 잔류 발색시약의 농도가 반비례하는 원리를 이용하여 잔류오존을 측정하였다. 인디고 시약(indigo trisulfonate)의 경우, 오존과 몰 대 몰로 반응하여 푸른색이 탈색되어 잔류 인디고 시약 농도를 분석함으로서 잔류 오존농도를 측정할 수 있다. 발색시약의 농도를 측정하기 위해서는 흡광도 분석 장치를 이용하였다.The present invention relates to a water treatment technology, and more particularly, to an ozone decomposition rate measuring device and a water treatment system using the same, and an ozone decomposition rate measuring device capable of real-time and continuous measurement of ozone decomposition rate and a water treatment system capable of automatic control using the same. To provide. In the present invention, the residual ozone was measured using the principle that the coloring reagent reacts with ozone at a ratio to decolorize, and the concentration of the ozone concentration and the residual coloring reagent is inversely proportional. In the case of indigo trisulfonate, the residual ozone concentration can be measured by analyzing the residual indigo reagent concentration by reacting ozone with moles to moles and decolorizing the blue color. An absorbance analyzer was used to measure the concentration of the color reagent.
Description
본 발명은 수처리 기술에 관한 것으로, 특히 오존분해속도 측정장치 및 그를 이용한 수처리 시스템에 관한 것이다.The present invention relates to water treatment technology, and more particularly, to an apparatus for measuring ozone decomposition rate and a water treatment system using the same.
오존(O3)의 산화력을 이용한 정수기술은 난분해성 물질과 같은 오염물질의 제거에 우수한 효과가 있는 기술로 알려져 있다. 또한, 수중의 유기물질들에 대한 제거효과가 탁월하며 생분해성 증가에 따른 생물처리능의 증대와 오존산화의 중간 생성물인 OH 라디칼에 의한 효율성 증진 효과를 기대할 수 있다.Water purification technology using the oxidizing power of ozone (O 3 ) is known to have an excellent effect on the removal of contaminants such as hardly decomposable substances. In addition, the removal effect on organic matters in water is excellent, and can be expected to increase the biotreatment ability according to the increase in biodegradability and the efficiency increase effect by OH radical which is an intermediate product of ozone oxidation.
수처리에 적용될 경우 오존(O3)은 오존만이 가질 수 있는 물리적·화학적 성질로 인해 공정 설치 및 운용, 산화력 면에서 염소 등의 다른 산화제에 비해 다양한 장점들을 가지게 된다.When applied to water treatment, ozone (O 3 ) has various advantages over other oxidants such as chlorine in terms of process installation and operation and oxidizing power due to the physical and chemical properties of ozone alone.
기본적으로 오존은 비교적 높은 산화력(전위차=2.07V)을 가지므로 농약류 및 수중의 독성 유기물질을 산화하고 이-취미 물질 제거에 비교적 큰 효과를 가진다. 용존오존은 짧은 반감기를 가지므로 잔류성이 없어서 잔류염소와 같은 맛-냄새를 유발하지 않고 염소의 반응부산물인 THM(Tri-Halo-Methane)과 다른 유기염화 부산물들의 생성을 억제하는 효과가 크다. 또한, 수중의 유기물질들에 대해 제거효과가 탁월하며, 오존산화시 분자량이 큰 유기물질에 대해서 저분자화가 유도되어 생분해성이 증가하므로 생물활성탄(Biological Activated Carbon, BAC) 등을 이용한 생물학적 처리와 병용할 경우 그 처리효과가 극대화될 수 있다는 장점이 있다. 이외에도 오존은 철, 망간 같은 무기물도 효율적으로 산화-침전을 통해 제거할 수 있으며, 자연수에서 분해되어 중간 생성 물질로 오존 자체보다 산화력이 강한 OH 라디칼을 생성할 수 있는데, 이를 통해 처리 대상물질의 특성에 따라 효율적으로 응용할 수 있는 다양한 특성을 지니며 다른 산화제와 겸용하여 효율성을 더 증진시킬 수 있는 장점이 있다.Basically, ozone has a relatively high oxidizing power (potential difference = 2.07V), thus oxidizing pesticides and toxic organic substances in water and having a relatively large effect on the removal of these hobby substances. Since dissolved ozone has a short half-life, it has no residual effect and thus has a great effect of suppressing the formation of chlorine by-product, THM (Tri-Halo-Methane) and other organic chloride by-products, without causing a taste-smell like residual chlorine. In addition, the removal effect is excellent for organic substances in the water, and biodegradability is increased by inducing low molecular weight for organic substances having a high molecular weight during ozone oxidation, so they can be used in combination with biological treatment using bioactive activated carbon (BAC) If so, the treatment effect can be maximized. In addition, ozone can efficiently remove inorganic substances such as iron and manganese through oxidation-precipitation, and can be decomposed in natural water to generate OH radicals that are more oxidizing than ozone itself as intermediates. According to the present invention, it has various characteristics that can be efficiently applied and can be combined with other oxidants to further increase efficiency.
이러한 장점으로 인하여 최근에 구미 선진국에서는 보다 깨끗하고 안전한 수돗물을 만들기 위해서 오존산화 공정을 정수처리 공정에 많이 적용하고 있으며, 그 사용이 널리 확산되고 있는 상황에 있다. 국내에서도 근래 여러 차례의 상수원 오염 사건과 이로 인한 국민들의 수돗물 불신 등으로 인해서 오존산화 공정을 정수처리에 이용하려는 움직임이 활발하게 전개되고 있으며. 이로서 오존산화처리 공정 관련 적용·운영기술의 확보가 시급하게 대두되고 있다.Due to these advantages, in recent years, developed countries in Gumi have applied ozone oxidation process to water purification process in order to make clean and safe tap water, and its use is widely spreading. Recently, there have been many active movements to use ozone oxidation for water treatment due to several incidents of water pollution and distrust of the public. As a result, it is urgent to secure application and operation technologies related to the ozone oxidation process.
일반적으로 오존산화 처리공정을 실제 정수처리에 적용하기 위해서는 지역적·기후적으로 다양한 수질 특성에 적합한 적용을 위해서 사전 평가작업이나 실제 플랜트(plant)와 유사한 파일럿 플랜트(pilot plant)를 통한 테스트(test)를 수행해야 하는데, 이를 수행하기 위해서는 상당한 시간과 비용이 소모되게 된다. 그러므로, 원수별 적용성 평가를 위해 소모되는 시간적·경제적 낭비를 최소화하고 필요시에는 사전 기술적용 평가단계 없이 바로 시공해도 적중율면에서 만족할 수 있는 오존산화처리 공정 시스템이 필요하게 되었다.In general, in order to apply the ozone oxidation process to the actual water treatment, a pre-evaluation work or a pilot plant-like pilot plant is used to apply a variety of water quality characteristics locally and climately. This requires a lot of time and money. Therefore, there is a need for an ozone oxidation process system that minimizes the time and economic waste consumed for applicability of raw water and, if necessary, can be satisfied in terms of hit rate even if it is installed immediately without prior technical evaluation step.
또한, 고도정수처리 전체 공정내에서 단위공정인 오존산화처리 공정이 전처리공정(pre-treatment)으로 적용되는가 또는 후처리공정(post-treatment)으로 적용되는가에 따라서 서로 다른 처리목적을 가질 수가 있고 공정설계 및 운전 인자가 달라지게 된다. 그러므로 전·후처리공정 중 어디에 적용하는가에 따라서 공정설계와 제어를 위한 관련 물리적·화학적 인자의 적용 방식이 달라지게 되며 또 원수 특성 및 수질변화를 감안하여 능동 대처가 가능한 제어 인자들도 도출하여야 하므로 이 모든 사항들을 고려하여 오존산화처리 공정을 실용화하는 것은 파일럿 테스트(pilot test) 기간을 포함하여 상당한 기간을 요구한다. 따라서 향후 새로운 고도정수처리 시스템의 도입시 오존산화처리 공정의 적용에 요구되는 기간을 단축하고 보다 용이하고 경제적인 운전을 위하여 선경험적 지표 도출과 자동제어가 가능한 오존산화처리 공정 시스템의 연구·개발이 절실한 실정이다.In addition, depending on whether the ozone oxidation process, which is a unit process, is applied as a pre-treatment or post-treatment in the whole high water treatment process, it may have different treatment purposes. Design and operating factors will vary. Therefore, the method of applying the relevant physical and chemical factors for process design and control varies according to which of the pre- and post-treatment processes are applied, and control factors that can be actively coped with in consideration of changes in raw water characteristics and water quality must be derived. With all these considerations in place, the practical use of the ozonation process requires a significant period of time, including a pilot test period. Therefore, in order to shorten the period required for the application of the ozone oxidation process in the future when introducing a new advanced water treatment system, and to develop an easier and more economical operation, the research and development of the ozone oxidation process system capable of deriving prior experience indicators and automatic control It is a desperate situation.
이와 같이 원수 특성 및 수질변화를 감안하여 능동 대처가 가능한 제어 인자로서 오존분해속도를 들 수 있다. 그러나, 아직까지 오존분해속도의 실시간·연속 측정을 실현하지 못하고 있어 자동제어가 가능한 오존산화처리 공정 시스템을 개발하는데 가장 큰 걸림돌이 되고 있다.As such, the rate of ozone decomposition may be mentioned as a control factor that can be actively coped with in consideration of changes in raw water characteristics and water quality. However, the real-time and continuous measurement of ozone decomposition rate has not been realized yet, which is the biggest obstacle to developing an ozone oxidation process system capable of automatic control.
본 발명은 오존분해속도의 실시간·연속 측정이 가능한 오존분해속도 측정장치를 제공하고자 한다.The present invention is to provide an ozone decomposition rate measuring device capable of real-time, continuous measurement of the ozone decomposition rate.
또한, 본 발명은 상기 오존분해속도 측정장치를 이용하여 자동제어가 가능한 수처리 시스템을 제공하고자 한다.In addition, the present invention is to provide a water treatment system capable of automatic control by using the ozone decomposition rate measuring device.
도 1은 본 발명의 일 실시예에 따른 오존분해속도 측정장치의 개략적 구성도.1 is a schematic configuration diagram of an ozone decomposition rate measuring apparatus according to an embodiment of the present invention.
도 2는 본 발명에 따른 오존산화처리 공정 시스템의 예시도.Figure 2 is an illustration of the ozone oxidation process system according to the present invention.
* 도면의 주요 부분에 대한 부호의 설명* Explanation of symbols for the main parts of the drawings
10 : 오존농축수 주입부 11 : 오존반응조10: ozone concentrated water injection unit 11: ozone reaction tank
12 : 잔류오존 측정부 13 : 오존 발생기12: residual ozone measuring unit 13: ozone generator
14. 15 : 펌프 16 : 가시광 분광광도 검출기14. 15: pump 16: visible light spectrophotometer detector
17 : 기록계 18 : H2O2주입펌프17: recorder 18: H 2 O 2 injection pump
19 : 오존농축수 챔버19: ozone concentrate chamber
상기 기술적 과제를 달성하기 위해 본 발명은, 오존분해속도 측정장치에 있어서, 오존농축수 제공수단; 상기 오존농축수 제공수단으로부터 오존농축수를 공급받아 시료수와 혼합하는 오존반응조; 상기 오존반응조로부터 연속적으로 시료수를 채취하여 발색시약을 연속적으로 소정 비율로 혼합하는 수단; 및 상기 발색시약과 혼합된 상기 시료수 내의 상기 발색시약의 잔류 농도 분석을 통해 잔류오존 농도를 연속적으로 측정하기 위한 흡광도 분석수단을 포함한다.In order to achieve the above technical problem, the present invention, in the ozone decomposition rate measuring device, ozone concentrated water providing means; An ozone reaction tank receiving ozone concentrated water from the ozone concentrated water providing means and mixing the sample water with the sample water; Means for continuously collecting sample water from the ozone reaction tank and continuously mixing the coloring reagents in a predetermined ratio; And absorbance analysis means for continuously measuring the residual ozone concentration by analyzing the residual concentration of the color reagent in the sample water mixed with the color reagent.
또한, 상기 기술적 과제를 달성하기 위해 본 발명은, 수처리 시스템에 있어서, 오존산화처리 반응조; 상기 오존산화처리 반응조로 유입되는 유입수로부터 시료수를 채취하여 오존농축수와 혼합하는 오존반응조와, 상기 오존농축수와 혼합된 상기 시료수를 연속적으로 취하면서 발색시약을 연속적으로 소정 비율로 혼합하는 수단과, 상기 발색시약과 혼합된 상기 시료수 내의 상기 발색시약의 잔류 농도 분석을 통해 잔류오존 농도를 측정하기 위한 흡광도 분석수단을 구비하는 오존분해속도 측정수단; 상기 오존산화처리 반응조에 오존을 공급하기 위한 오존발생수단; 및 상기 오존분해속도 측정수단의 출력에 응답하여 상기 오존발생수단의 오존주입량을 제어하는 제어수단을 포함한다.In addition, in order to achieve the above technical problem, the present invention, in the water treatment system, ozone oxidation treatment tank; Collecting the sample water from the inflow water flowing into the ozone oxidation treatment tank and mixing with the ozone concentrated water and the sample water mixed with the ozone concentrated water, and continuously mixing the coloring reagent in a predetermined ratio Means and ozone decomposition rate measuring means having absorbance analyzing means for measuring residual ozone concentration by analyzing residual concentration of the color developing reagent in the sample water mixed with the color developing reagent; Ozone generating means for supplying ozone to said ozone oxidation treatment tank; And control means for controlling the ozone injection amount of the ozone generating means in response to the output of the ozone decomposition rate measuring means.
본 발명은 발색시약이 오존과 일정 비율로 반응하여 탈색되어 오존농도와 잔류 발색시약의 농도가 반비례하는 원리를 이용하여 잔류오존을 측정하였다. 인디고 시약(indigo trisulfonate)의 경우, 오존과 몰 대 몰로 반응하여 푸른색이 탈색되어 잔류 인디고 시약 농도를 분석함으로서 잔류 오존농도를 측정할 수 있다. 발색시약의 농도를 측정하기 위해서는 흡광도 분석 장치를 이용하였다.In the present invention, the residual ozone was measured using the principle that the coloring reagent reacts with ozone at a ratio to decolorize, and the concentration of the ozone concentration and the residual coloring reagent is inversely proportional. In the case of indigo trisulfonate, the residual ozone concentration can be measured by analyzing the residual indigo reagent concentration by reacting ozone with moles to moles and decolorizing the blue color. An absorbance analyzer was used to measure the concentration of the color reagent.
오존산화처리 공정은 오존 가스만을 주입하는 경우도 있으나, 필요에 따라서는 과산화수소(H2O2)를 혼합주입하여 오존분해속도를 향상시키는 경우에도 적용할 수 있다. 이때 최적화된 오존과 과산화수소 주입량 산출은 물리적·화학적 인자를 고려한 다음의 수학식 1과 같은 간편화된 함수로 축약할 수 있다.Although the ozone oxidation process may inject only ozone gas, it may be applicable to the case of improving the ozone decomposition rate by injecting hydrogen peroxide (H 2 O 2 ) as necessary. At this time, the optimized ozone and hydrogen peroxide injection amount calculation can be reduced to a simplified function as shown in Equation 1 in consideration of physical and chemical factors.
여기서, 화학적 인자는 주로 원수 특성에 의하여 좌우되는데 pH, 경도(硬度), TOC(Total Organic Carbon), 유기물 오염양상, 브롬이온(br-), 철, 망간 같은 무기물 존재량 등 여러 가지 요소에 의해 좌우된다. 이러한 원수 중의 유·무기 인자들에 의해서 오존 주입시 오존이 소모되는 속도가 달라지게 되는데, 따라서 오존이 소모 또는 분해되는 속도는 원수의 오존산화처리시 중요한 지표로서 사용된다. 이렇게 오존의 주입량을 대표하는 화학적 인자로 오존분해속도 kc를 사용하는데, 본 발명에서 제안하는 측정장치로 이를 간단하게 측정할 수 있으며, 이렇게 측정한 결과를 가지고 kc를 해석해서 오존산화처리 공정의 자동제어에 필요한 인자로서 사용할 수 있다. 또한 이렇게 측정되어진 화학적 인자는 공정설계에도 고려되어야 하므로 다시 물리적 인자에도 영향을 가지게 된다. 물리적 인자들은 주로 반응조의 수리학적인 구조와 오존 주입시의 풍량, 유입수의 유량 등에 의해서 결정되는데 오존 주입시의 풍량을 제외하고는 대부분 고정적인 값들을 가지므로 화학적 인자의 변화에 대해서만 계속적으로 감지·제어하게 되면 오존산화처리 공정의 운전·제어는 용이하게 된다. 화학적 인자의 변화는 kc측정장치에 의해서 수시 측정이 가능하므로 이 kc측정장치와 연계된 컴퓨터 제어를 통해서 화학적 변환에 능동적으로 대처하는 시스템화된 제어가 가능하게 되고, 또 오존산화처리 시스템 시공 전에 축적된 kc인자들은 장래 수질변화에 따른 오존주입 인자를 결정할 수 있는 컴퓨터 시뮬래이션(computer simulation) 및 공정설계를 결정할 수 있는 기초자료로서 사용할 수도 있다.Here, chemical factors, mainly there is influenced by the raw water properties pH, hardness (硬度), TOC (Total Organic Carbon), organic pollution aspect, a bromine ion (br -) by a number of factors, such as mineral abundance of iron, manganese Depends. The rate of ozone consumption during ozone injection varies according to the organic and inorganic factors in the raw water. Therefore, the rate at which ozone is consumed or decomposed is used as an important indicator in the ozone oxidation treatment of raw water. So in using the ozone decomposition rate k c a chemical factor that represents the injection amount of ozone, it is possible to simply measure it as the measurement device proposed in the present invention, thus have the measurements to interpret k c handling the ozone oxidation process It can be used as a factor for automatic control of. In addition, these measured chemical factors must also be considered in the process design, which in turn affects the physical factors. The physical factors are mainly determined by the hydraulic structure of the reactor, the air flow rate during ozone injection, and the flow rate of influent. Most of them have fixed values except the air flow rate during ozone injection. This facilitates the operation and control of the ozone oxidation process. Change of chemical factors is possible at any time determined by k c measuring device, so the k c is the systematic control to cope with the chemical transformation through the computer control associated with the measuring device becomes possible, and ozone before the oxidation treatment system construction Accumulated k c factors can also be used as the basis for computer simulation and process design to determine ozone injection factors for future water quality changes.
이하, 본 발명이 속한 기술분야에서 통상의 지식을 가진 자가 본 발명을 용이하게 실시할 수 있도록 본 발명의 바람직한 실시예를 소개한다.Hereinafter, preferred embodiments of the present invention will be introduced so that those skilled in the art may easily implement the present invention.
첨부된 도면 도 1은 본 발명의 일 실시예에 따른 오존분해속도 측정장치를 도시한 것으로, 이하 이를 참조하여 오존주입 및 분해속도 측정을 위한 구체적인 장치의 구성 및 작용을 살펴본다.1 is a view illustrating an ozone decomposition rate measuring apparatus according to an exemplary embodiment of the present invention. Hereinafter, the configuration and operation of a specific apparatus for ozone injection and decomposition rate measurement will be described.
본 오존분해속도 측정장치에서는 오존분해속도의 측정을 위해서 폭기방식의 주입방법이 아닌 오존농축수(ozone concentrated water)를 제조해 대상수에 주입하는 방법을 사용하였으며, 따라서 0.5∼2㎎/L의 비교적 적은 주입오존량에 대해 정확한 분해속도를 측정할 수 있다.In the ozone decomposition rate measuring device, ozone concentrated water was prepared and injected into the target water instead of the aeration method for the measurement of the ozone decomposition rate. Thus, 0.5-2 mg / L Accurate decomposition rates can be determined for relatively small amounts of injected ozone.
본 장치는 크게 오존농축수 주입부(10), 오존반응조(11), 잔류오존 측정부(12)의 세 부분으로 구성되어져 있으며, 특히 잔류오존의 측정에 인디고 시약(indigo trisulfonate)이 오존과 몰 대 몰로 반응하여 탈색되어 오존농도와 잔류 인디고 시약 농도가 반비례하게 되는 원리를 이용하였다.The device is composed of three parts: ozone concentrated water injection unit (10), ozone reaction tank (11), and residual ozone measuring unit (12). In particular, indigo trisulfonate is used to measure residual ozone. The reaction was carried out in large moles to decolorize, and the principle of inversely proportional to ozone concentration and residual indigo reagent concentration was used.
우선, 오존농축수 주입부(10)는 오존농축수 챔버(19) 내의 증류수에 오존이 포화되도록 계속 오존 발생기(13)로부터 오존을 공급받아 준비된 상태에서 일정량이 자동적으로 취해져서 오존반응조(11)의 대상시료수에 첨가·혼합되도록 한다. 오존농축수에는 약 20㎎/L 농도의 오존이 용존되어 있는 상태로 조정되었으며, 이것이 오존반응조(11) 내로 주입되어 목적하는 초기오존농도로 희석·주입될 수 있도록 장치를 구성하였다.First, the ozone concentrated water injection unit 10 is automatically taken from the ozone generator 13 to receive ozone from the ozone generator 13 so that ozone is saturated in the distilled water in the ozone concentrated water chamber 19, and a predetermined amount is automatically taken. Add and mix to the target sample water. The ozone concentrated water was adjusted to a state in which ozone at a concentration of about 20 mg / L was dissolved, and the device was configured to be diluted and injected into the desired initial ozone concentration by injecting it into the ozone reactor (11).
오존반응조(11)에는 1L 내외의 시료가 담겨져 있고 계속 교반될 수 있는 상태로 준비되어져 있어 오존농축수가 주입되면 바로 반응이 시작되도록 구성되었으며, 따라서 1㎎/L의 초기오존농도가 되게 하려면 오존농축수가 20배 희석되어지는 양만큼 오존농축수가 주입되도록 한다.The ozone reactor 11 contains about 1L of sample and is ready to be stirred, so that the reaction starts as soon as the ozone concentrate is injected. Therefore, to make the initial ozone concentration of 1mg / L, the ozone concentration Allow ozone concentrate to be injected in an amount that is diluted 20 times.
오존농축수가 주입된 시점부터 시작하여 일정량의 시료를 펌프(pump)(14)를 이용하여 연속적으로 채취하면서 동시에 연속적인 이 흐름 속에 일정한 비율의 인디고 시약 용액이 역시 펌프(15)를 통해 첨가되게 한 후 가시광 분광광도 검출기(16)를 연속적으로 통과하도록 하였다. 이때, 시료수와 인디고 시약 용액의 혼합 비율은 5:1 정도로 한다.Starting from the point where the ozone concentrate was injected, a certain amount of sample was taken continuously using a pump 14 while at the same time allowing a constant proportion of the indigo reagent solution to be added through this pump 15. After passing through the visible light spectrophotometer detector 16 continuously. At this time, the mixing ratio of the sample water and the indigo reagent solution is about 5: 1.
측정파장은 600㎚를 사용하였고 가시광 분광광도 검출기(16)에서 측정된 흡광도가 연속적으로 기록계(recorder)(17)에 기록되도록 한 후, 이 흡광도 신호곡선(raw signal curve)을 계산하여 잔류오존 농도를 계산하였다. 이렇게 그려진 신호곡선으로부터 일정 시간간격으로 각 높이에 상응하는 잔류오존 농도로 환산한 후 시간에 따른 오존농도 변화비 Ct/CO의 log값의 기울기로부터 오존분해속도 kc(min-1)을 산출하게 된다.The measurement wavelength was 600 nm and the absorbance measured by the visible light spectrophotometer detector 16 was continuously recorded on the recorder 17, and then the absorbance raw signal curve was calculated to calculate the residual ozone concentration. Was calculated. The ozone decomposition rate k c (min -1 ) is calculated from the slope of the logarithm of the ozone concentration change ratio C t / C O with time after converting the residual ozone concentration corresponding to each height from the signal curve thus drawn. Will be calculated.
또한 오존산화처리 공정시 처리효울을 향상시키기 위하여 과산화수소를 더 첨가하는 경우에는 H2O2주입펌프(18)를 통해 일정량의 과산화수소를 오존반응조(11) 내에 공급하여 실제 공정과 같은 조건으로 오존분해속도를 측정할 수 있다.In addition, when hydrogen peroxide is further added to improve the treatment effect during the ozone oxidation process, a certain amount of hydrogen peroxide is supplied into the ozone reactor 11 through an H 2 O 2 injection pump 18 to decompose ozone under the same conditions as in the actual process. You can measure the speed.
여기서, 오존 발생기(13) 및 H2O2주입펌프(18)는 오존산화처리 공정 제어 시스템에서 사용되는 것을 공유하여 사용할 수 있다. 즉, 오존분해속도 측정장치를 구성하기 위하여 별도의 오존 발생기(13) 및 H2O2주입펌프(18)를 필요로 하지 않는다.Here, the ozone generator 13 and the H 2 O 2 injection pump 18 can be used to share what is used in the ozone oxidation process control system. In other words, separate ozone generators 13 and H 2 O 2 injection pump 18 are not required to configure the ozone decomposition rate measuring device.
첨부된 도면 도 2는 본 발명에 따른 오존산화처리 공정 제어 시스템을 예시한 것으로, 상기 도 1에 도시된 바와 같은 오존분해속도 측정장치를 적용하였다.2 is a view illustrating an ozone oxidation process control system according to the present invention, and an ozone decomposition rate measuring apparatus as shown in FIG. 1 is applied.
본 오존산화처리 공정 제어 시스템은 pH, 경도, TOC, 유기물 오염양상 등의 유입수 특성을 대표하는 화학적 인자로서의 오존분해속도 kc를 사용하며 이를 상기 도 1에 도시된 바와 같은 오존분해속도 측정장치(20)에서 연속적으로 감시하여 그 정보를 제어 컴퓨터(21)에 전달한다. 제어 컴퓨터(21)는 표집된 정보를 기초로 하여 최적의 O3및 H2O2주입량을 산출하며, 오존 발생기(22) 및 H2O2주입펌프(23)를 제어하여 오존산화처리 챔버(24)에서 최적화된 공정이 이루어질 수 있도록 한다.The ozone oxidation process control system uses the ozone decomposition rate k c as a chemical factor representing the influent characteristics such as pH, hardness, TOC, organic contamination, and the like. 20 is continuously monitored and the information is transmitted to the control computer 21. The control computer 21 calculates the optimal O 3 and H 2 O 2 injection amount based on the collected information, and controls the ozone generator 22 and the H 2 O 2 injection pump 23 to control the ozone oxidation chamber ( 24 to ensure that the optimized process is achieved.
이처럼 시스템화된 도구적 적용 기술을 통해서 지역적·기후적으로 다른 원수들에 대해서도 시공전 파일럿 테스트와 같은 적용성 평가를 위해 소모되는 시간적· 경제적 낭비를 최소화하고, 필요시에는 사전 기술적용 평가단계 없이 바로 시공해도 적중율면에서 만족할 수 있는 오존산화처리 공정 시스템 개발이 가능해진다.This systemic instrumentation application technique minimizes the time and economic waste for applicability evaluations, such as pre-installation pilot testing, for other enemies locally and climately. It is possible to develop an ozone oxidation process system that can be satisfied in terms of hit rate even with construction.
이상에서 설명한 본 발명은 전술한 실시예 및 첨부된 도면에 의해 한정되는 것이 아니고, 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 여러 가지 치환, 변환 및 변경이 가능하다는 것이 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 있어 명백할 것이다.The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and various substitutions, conversions, and changes are possible in the technical field of the present invention without departing from the technical spirit of the present invention. It will be clear to those of ordinary knowledge.
전술한 본 발명은 오존산화처리 공정에서 오존의 주입량을 결정하는 대표적인 화학적 인자로서 오존분해속도 kc를 비교적 간단하게 측정할 수 있으며, 이러한 오존분해속도 측정장치를 오존산화처리 공정 시스템에 적용하여 최적화된 고도정수처리의 제어를 실현할 수 있다.The present invention described above can relatively simply measure the ozone decomposition rate k c as a representative chemical factor that determines the amount of ozone to be injected in the ozone oxidation process, and optimizes the ozone decomposition rate measuring device by applying the ozone oxidation process system. The control of the advanced water purification treatment can be realized.
Claims (9)
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| Application Number | Priority Date | Filing Date | Title |
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| KR1019980041175A KR100271562B1 (en) | 1998-09-30 | 1998-09-30 | Device for measuring ozone decomposition rate and water treatment system using the same |
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| KR1019980041175A KR100271562B1 (en) | 1998-09-30 | 1998-09-30 | Device for measuring ozone decomposition rate and water treatment system using the same |
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| KR100271562B1 true KR100271562B1 (en) | 2000-11-15 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100373513B1 (en) * | 2000-07-14 | 2003-02-25 | (주)우대기술단 | Auto control apparatus of ozone process and AOP(Advanced Oxidation Process) using kc(ozone consumption rate) and method thereof |
| KR100373512B1 (en) * | 2000-07-13 | 2003-02-25 | (주)우대기술단 | Auto control apparatus of ozone process and AOP(Advanced Oxidation Process) using CT control and method thereof |
| KR100373511B1 (en) * | 2000-07-13 | 2003-02-25 | (주)우대기술단 | Auto control apparatus of ozone process and AOP(Advanced Oxidation Process) using I.D(Instantaneous Ozone Demand) and method thereof |
| KR101674984B1 (en) * | 2015-06-09 | 2016-11-10 | 주식회사 포스코건설 | Apparatus for controlling ozone and method for controlling ozone |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769856A (en) * | 2017-01-09 | 2017-05-31 | 中国科学院理化技术研究所 | A kind of microorganism compost degraded test device and its application method |
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1998
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100373512B1 (en) * | 2000-07-13 | 2003-02-25 | (주)우대기술단 | Auto control apparatus of ozone process and AOP(Advanced Oxidation Process) using CT control and method thereof |
| KR100373511B1 (en) * | 2000-07-13 | 2003-02-25 | (주)우대기술단 | Auto control apparatus of ozone process and AOP(Advanced Oxidation Process) using I.D(Instantaneous Ozone Demand) and method thereof |
| KR100373513B1 (en) * | 2000-07-14 | 2003-02-25 | (주)우대기술단 | Auto control apparatus of ozone process and AOP(Advanced Oxidation Process) using kc(ozone consumption rate) and method thereof |
| KR101674984B1 (en) * | 2015-06-09 | 2016-11-10 | 주식회사 포스코건설 | Apparatus for controlling ozone and method for controlling ozone |
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| KR20000021897A (en) | 2000-04-25 |
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