KR20020033706A - The New AOP(Advanced Oxidation Process) Method and Unit Equipment - Google Patents
The New AOP(Advanced Oxidation Process) Method and Unit Equipment Download PDFInfo
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- KR20020033706A KR20020033706A KR1020020019094A KR20020019094A KR20020033706A KR 20020033706 A KR20020033706 A KR 20020033706A KR 1020020019094 A KR1020020019094 A KR 1020020019094A KR 20020019094 A KR20020019094 A KR 20020019094A KR 20020033706 A KR20020033706 A KR 20020033706A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/12—Movable parts; Contacts mounted thereon
- H01H13/14—Operating parts, e.g. push-button
- H01H13/16—Operating parts, e.g. push-button adapted for operation by a part of the human body other than the hand, e.g. by foot
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Abstract
Description
본 발명은 OH 라디칼을 이용한 수처리분야에 속하며, 모든 수처리에 적용 가능한 공법으로, 오존을 발생시키기 위한 고·저주파 무성방전 방식을 적용한오존발생장치, 전극의 재질이 양극은 스테인레스 스틸, 음극은 각각 백금, 은, 또는 구리를 적용하거나 또는 백금, 은, 또는 구리에 반도체 촉매인 TiO2를 코팅하여 적용한전기분해장치, 그리고 수처리(水處理)조에 입상으로 성형한 각각의 TiO2, ZnO, 또는 ZrO2를 충진한반도체 촉매의 세가지 경우가 일체로 되어 있는 신 AOP 공법 및 장치인 것이다. 일반적인 AOP(Advanced Oxidation Process)란 O3/H2O2, O3/UV, O3/UV/H2O2, TiO2/UV 등에 의해 수중에 발생된 OH 라디칼이 유기물을 분해하는 것으로 단순한 산화방식(산화제나 열)에 비해 더 효율적이다. 오존을 이용한 산화처리는 대기 혹은 수처리에 적용하고 있고, 전기분해방식은 산화-환원공정을 이용한 전기화학분야에 속하나, 일반적으로 이러한 방식들은 처리효율이 낮은 단점이 있다. 오존 산화처리는 원통이나 사각기둥에 유체를 담거나 혹은 연속으로 유입과 유출을 하면서 확산석을 통해 가스상 오존을 주입한다. 최근에는 오존과 촉매의 조합에 의한 수처리 방법이 시도되고 있으나 이에 따른 실용화는 활발하지 않으며, 전기분해방식도 전극의 표면에 반도체 촉매물질을 코팅시켜 적용하고 있으나 연구단계에 그치고 있는 형편이다. 국내에서 현재 실용화를 위해 연구 중인 수처리방법 중의 하나인 기존의 AOP 공법은 O3/H2O2, O3/UV, O3/UV/H2O2, TiO2/UV 에 의해 OH 라디칼을 발생시켜 유기물질을 분해하는 방식이다. 이 중 TiO2/UV 방식은 광촉매에 UV를 조사하여 광촉매 표면에서 OH 라디칼이 생성되어 유기물질을 산화분해시키는 것이다.현재 실용화하여 적용되고 있는 기존의 AOP는 O3/H2O2나 O3/UV 등의 방식으로 아직은 초기 단계에 해당한다. O3/H2O2방식은 과산화수소를 인위적으로 주입하여야 하므로 약품비와 공정관리가 필요하는 등의 경제적 및 유지관리 측면에서 비효율적인 단점이 있다. O3/UV(254nm) 방식은 오존이 자외선을 흡수하여 광분해되면서 수중에서 오존분해 메카니즘을 거쳐 OH 라디칼을 생성하므로 O3/H2O2방식에 비해서는 효율적이고 유지관리가 쉬우나, UV의 조사(照射)거리 및 물의 탁도에 따른 UV 강도의 현저한 감소로 현장 적용시 경제성과 실용화 측면에서 어려움이 있다. TiO2/UV방식은 광촉매에 UV를 조사하여 광촉매 표면에서 OH 라디칼이 생성되어 유기물질을 산화분해시키는 것으로 대기오염물질제거 및 살균용에는 약간의 효과는 있으나, 수질오염물질 처리시에는 TiO2회수의 문제점와 상기 제시한 UV가 가지고 있는 단점 등이 있다. 또한, 이러한 기존의 AOP 공정들은 일반적으로 처리속도가 느리며, 난분해성 오염물질에 대해 선택성이 있다는 단점이 있어 현장 적용에는 큰 문제점으로 남아 있다.The present invention belongs to the field of water treatment using OH radicals, a method applicable to all water treatment, ozone generator using a high and low frequency silent discharge method for generating ozone , the material of the anode is stainless steel, the cathode is platinum TiO 2 , ZnO, or ZrO 2 , each electroformed by applying silver, copper, or coated with platinum, silver, or copper with a semiconductor catalyst, TiO 2 , and granulated in a water treatment tank. It is a new AOP method and apparatus in which three cases of a semiconductor catalyst filled with are integrated. The general AOP (Advanced Oxidation Process) is an OH radical generated in water by O 3 / H 2 O 2 , O 3 / UV, O 3 / UV / H 2 O 2 , TiO 2 / UV, etc. It is more efficient than oxidation method (oxidizer or heat). Oxidation treatment using ozone is applied to the atmosphere or water treatment, and electrolysis belongs to the electrochemical field using an oxidation-reduction process, but in general, these methods have disadvantages of low treatment efficiency. Ozone oxidation treatment injects gaseous ozone through a diffusion stone while the fluid is contained in a cylinder or a square column, or continuously flows in and out. Recently, a water treatment method using a combination of ozone and a catalyst has been attempted, but practical use thereof is not active, and electrolysis is also applied by coating a semiconductor catalyst material on the surface of an electrode. The existing AOP method, one of the water treatment methods currently being studied for practical use in Korea, uses OH radicals by O 3 / H 2 O 2 , O 3 / UV, O 3 / UV / H 2 O 2 , and TiO 2 / UV. It is a method of decomposing organic material by generating Among these, TiO 2 / UV method is to irradiate UV to photocatalyst to generate OH radicals on the surface of photocatalyst to oxidatively decompose organic materials. Currently, AOP that is applied to practical use is O 3 / H 2 O 2 or O 3 / UV, etc. still in its early stages. O 3 / H 2 O 2 method has an inefficient disadvantage in terms of economic and maintenance, such as the need for chemical cost and process control because the hydrogen peroxide must be artificially injected. O 3 / UV (254nm) method is ozone absorbs ultraviolet rays and photo-decomposes to generate OH radicals in water through ozone decomposition mechanism, so it is more efficient and easier to maintain than O 3 / H 2 O 2 method, but UV irradiation Due to the remarkable decrease of UV intensity according to the distance and turbidity of water, it is difficult in terms of economics and practical use in the field application. TiO 2 / UV method is by UV irradiation to a photocatalyst the OH radical generated by the photocatalytic surface of TiO 2 recovered during has some effect, but the water pollutant treatment for removal of air pollutants by which oxidative decomposition of organic material and disinfection There are problems and disadvantages of the UV presented above. In addition, these conventional AOP processes are generally slow in processing speed, and have a disadvantage in that they are selective for hardly degradable contaminants, which remains a significant problem in field applications.
따라서, 본 발명은 기존 수처리 방법 증의 하나인 오존만을 사용하는 방식이 수질오염물질을 직접 분해하는데 선택성이 있으며 OH 라디칼의 발생량이 불충분한 문제가 있으므로, 오존을 OH 라디칼로 전환하여 비선택성인(단일결합, 이중결합 등의 수질오염물질 분해에 선택성이 없음) OH 라디칼을 보다 많이 생성시킬 수 있게함으로써 오존만을 이용한 수처리방식에 비해 성능을 약 70% 이상을 향상시켰다. 또한 오존과 입상으로 성형한 촉매의 충진으로 UV의 조사거리에 따른 실용화 문제, TiO2의 회수문제 등을 해결하고, 인위적인 화합물(예를들면 과산화수소 등)을 첨가하지 않아 처리비용을 크게 절감할 수 있고, 효율적이며, 현장적용에 간편한 특징이 있다. 그리고 전기분해장치의 전극을 통한 전류량을 조절하여 OH 라디칼 발생량을 동시에 조절할 수 있어 적용하는 처리수질에 따라 유동적으로 사용할 수 있는 장점이 있다. 궁극적으로. 본 발명은 대용량의 수처리에 적용이 가능하고, 슬러지 발생량이 적으며, 처리장치의 설치면적이 작게 차지하는 이점이 있으며, 또한 기존의 처리시설을 활용하여 본 발명을 적용할 수 있는 큰 장점이 있어, 고도정수처리시설, 간이전용상수도, 발전용수, 하수종말처리장의 유출수, 염소계 유기폐수, 염색폐수, 난분해성 유독성폐수 등 각종 용수생산 및 다양한 폐수처리에 적용할 수 있다. 따라서 본 발명은 환경생태보존에 일익을 담당할 수 있으며, 지구의 환경보존산업을 활성화 시키는데에 그 목적이 있다.Therefore, the present invention is a method of using only ozone, which is one of the existing water treatment methods, is selective in directly decomposing water pollutants and insufficient generation of OH radicals. There is no selectivity for the decomposition of water pollutants such as single and double bonds.) By generating more OH radicals, the performance is improved by more than 70% compared to ozone-only water treatment. In addition, the filling of ozone and granular catalysts solves practical problems of UV irradiation distance, recovery of TiO 2 , and does not add artificial compounds such as hydrogen peroxide. It is convenient, efficient, and easy to apply in the field. In addition, by controlling the amount of current through the electrode of the electrolysis device, it is possible to simultaneously control the amount of OH radicals generated, which has the advantage that it can be used flexibly according to the applied water quality. ultimately. The present invention has the advantage that it can be applied to a large amount of water treatment, the amount of sludge generated, the installation area of the treatment device is small, and also has a great advantage to apply the present invention by utilizing the existing treatment facilities, It can be applied to various water production and various wastewater treatment such as advanced water treatment facility, simple water supply system, power generation water, effluent from sewage terminal treatment plant, chlorine organic wastewater, dyeing wastewater, non-degradable toxic wastewater. Therefore, the present invention can play a role in environmental conservation, and its purpose is to activate the global environmental conservation industry.
도1은 본 발명에 따른 신 AOP 공법의 장치 전체를 일체(unit)로 한 하나의 실시예를 도시한 개략도.1 is a schematic diagram showing one embodiment in which the entire apparatus of the new AOP method according to the present invention is united.
도2는 본 발명에 따른 신 AOP 공법의 장치에서 발생한 OH 라디칼의 생성결과를 나타낸 그래프.2 is a graph showing the results of the generation of OH radicals generated in the apparatus of the new AOP method according to the present invention.
도3은 본 발명에 따른 신 AOP 공법 및 기존의 타 공정들을 적용하여 각각 PCE(Tetrachloroethylene)을 분해한 실험결과를 나타낸 그래프.Figure 3 is a graph showing the experimental results of decomposing PCE (Tetrachloroethylene) by applying the new AOP method and the other conventional processes according to the present invention.
〈도면의 주요부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>
1.배오존유출구 2.유체유출구 3.양극 4.양극전선 5.촉매1.Ozone outlet 2.Fluid outlet 3.Anode 4.Anode wire 5.Catalyst
6.유체유입구 7.확산석 8.오존발생기(O.G:Ozone Generator)6.Fluid inlet 7.Diffusion stone 8.Ozone generator (O.G)
9.오존가스유입구 10.균등공간 11.전원공급장치(P.S:Power Supply)9.Ozone Gas Inlet 10.Equal Space 11.Power Supply (P.S)
12.음극전선 13.음극 14.절연체 15.배오존가스공간.12. Cathode wire 13. Cathode 14. Insulator 15. Ozone gas space.
이러한 목적을 달성하기 위해 본 발명은 지금까지 시도되지 않았던 새로운 수처리 공법 및 장치 개발로서, 오존을 발생시키기 위한 고·저주파 무성방전 방식을 적용한오존발생장치, 전극의 재질로서 양극은 스테인레스 스틸, 음극은 각각 백금, 은, 또는 구리를 적용하거나, 또는 백금, 은, 또는 구리에 반도체 촉매인 TiO2를 코팅하여 적용한전기분해장치, 그리고 입상으로 성형하여 수처리(水處理)조에 충진한 각각의 TiO2, ZnO, 또는 ZrO2등의반도체 촉매로 구성되어 있는 일체형 공법 및 장치인 것이다. 본 발명의 수처리 부분의 장치는 오존발생장치에서 발생되어 반응기로 유입되는 오존이 수중으로 많이 용존되기 위해 작은 방울의 오존화가스를 발생시키기 위한 확산석이 수처리조 밑바닥에 설치되어 있고, 확산석의 보호와 반응기 내의 충진된 반도체 촉매에 용존오존이 균일하게 접촉될 수 있도록 확산석의 상부에 균등공간을 두었다. 용존오존이 반도체 촉매와 접촉하여 전도대에 있는 전자를 받아들여 ozonide(O- 3)로 전환되고 ozonide는 빠르게 HO3를 생성하여 OH 라디칼과 산소로 분해된다. 이때 충진된 반도체 촉매는 수처리조의 측면에 전기분해장치의 전극과 접촉하고 전자는 바닥상태(기저상태)에서 여기되어 전도대에 남아 있게 된다.In order to achieve this object, the present invention is a new water treatment method and apparatus that has not been attempted until now, and an ozone generator using a high and low frequency silent discharge method for generating ozone. each platinum, silver, or applying copper, or platinum, silver, or copper in the electrolytic apparatus is applied to the coating of TiO 2 catalyst, and the respectively formed into a particulate water-filled tank (水處理) TiO 2, It is an integrated method and a device composed of a semiconductor catalyst such as ZnO or ZrO 2 . In the apparatus of the water treatment part of the present invention, a diffusion stone for generating small droplets of ozonated gas is installed at the bottom of the water treatment tank so that ozone generated in the ozone generator and dissolved in the reactor is dissolved in water. An equal space was placed on top of the diffusion stone so that dissolved ozone could be uniformly contacted with the charged semiconductor catalyst in the reactor. Dissolved ozone comes into contact with the semiconductor catalyst to accept the electrons in the conduction band and convert them into ozonide (O - 3 ), which quickly produces HO 3 and breaks down into OH radicals and oxygen. At this time, the filled semiconductor catalyst is in contact with the electrode of the electrolysis device on the side of the water treatment tank and the electrons are excited in the ground state (base state) and remain in the conduction band.
또한, 본 발명에 있어 오존은 수질 중 탁도에 많은 영향을 받지 않으며, 반도체 촉매를 입상으로 성형하여 충진시킴으로써 촉매의 회수가 용이한 특징이 있다. 따라서, 본 발명은 난분해성 오염물질을 포함한 유독성 오염물질을 쉽게 분해할수 있는 OH 라디칼을 훨씬 많이 생성시킴으로써 수처리의 효율을 높이고 처리시간을 보다 짧게 단축시킬 수 있는 이점이 있다.In addition, in the present invention, ozone is not significantly affected by turbidity in the water quality, and the catalyst is easily recovered by molding and filling the semiconductor catalyst into granules. Therefore, the present invention has an advantage of generating much more OH radicals that can easily decompose toxic pollutants including hardly degradable pollutants, thereby increasing the efficiency of water treatment and shortening the treatment time.
이하 첨부한 도면을 참조하여 본 발명에 따른 바람직한 실시 예를 상세히 설명하면 다음과 같다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
본 발명에 의한 신 AOP 장치는 도 1에 나타난 바와 같이, 오존을 발생시키기 위한 고·저주파 무성방전 방식을 적용한 오존발생장치(8), 양극(3)은 스테인레스스틸, 음극(13)은 각각 백금, 은, 또는 구리를 적용하거나, 또는 백금, 은, 또는 구리에 반도체 촉매인 TiO2를 코팅하여 적용한 전기분해장치(3, 4, 11, 12, 13, 14)와 입상으로 성형하여 수처리(水處理)조에 충진한 각각의 TiO2, ZnO, 또는 ZrO2등의 반도체 촉매(5)로 구성되어 있다. 이 공법의 수처리 부분의 장치는, 오존이 오존발생장치(8)에서 발생되어 반응기로 유입되어 수중으로 많이 용존되기 위해 작은 방울의 오존화가스를 발생시키기 위한 확산석(7)이 수처리조 밑바닥에 설치되어 있고, 확산석의 보호와 반응기 내의 반도체 촉매에 용존오존이 균일하게 접촉을 하기 위해 확산석의 상부에 균등공간(10)을 두었다. 용존오존이 충진된 반도체 촉매와 접촉하여 전도대에 있는 전자를 받아 들여 ozonide(O- 3)로 전환되고 ozonide는 빠르게 HO3를 생성하여 이것은 OH 라디칼과 산소로 분해된다. 이때 충진된 반도체 촉매(5)는 수처리조의 측면에 전기분해장치(3, 4, 11, 12, 13, 14)의 전극(3, 13)과 접촉하고 전자는 바닥상태(기저상태)에서 여기되어 전도대에 남아 있게 된다.As shown in FIG. 1, the new AOP device according to the present invention is an ozone generator 8 using a high and low frequency silent discharge method for generating ozone, the anode 3 is stainless steel, and the cathode 13 is platinum. Water treatment by molding into granules with an electrolysis device (3, 4, 11, 12, 13, 14) applied with silver, copper, or by coating TiO 2 as a semiconductor catalyst on platinum, silver, or copper.處理) is one composed of the respective TiO 2, ZnO, or the catalyst (5), such as ZrO 2 filled tank. In the apparatus of the water treatment part of this method, a diffusion stone (7) for generating small droplets of ozonated gas is generated at the bottom of the water treatment tank so that ozone is generated in the ozone generator (8), flows into the reactor, and is dissolved in water. In order to protect the diffusion stone and to make the dissolved ozone uniformly contact the semiconductor catalyst in the reactor, an equal space 10 was provided on the upper part of the diffusion stone. In contact with the dissolved ozone-filled semiconductor catalyst, the electrons in the conduction band are taken in and converted to ozonide (O - 3 ), which quickly produces HO 3 , which is broken down into OH radicals and oxygen. At this time, the filled semiconductor catalyst 5 is in contact with the electrodes 3, 13 of the electrolysis devices 3, 4, 11, 12, 13, 14 on the side of the water treatment tank and the electrons are excited in the ground state (base state) You will remain in the evangelism band.
이와 같이 운영되는 본 발명의 신 AOP 공법 및 장치에 따른 구체적인 실험결과는 다음과 같다.Specific experimental results according to the new AOP method and apparatus of the present invention operated as described above are as follows.
도 2는 본 발명에 따른 신 AOP 공법 및 장치에 의해 발생되는 OH 라디칼의 생성량을 분석한 결과이다. 도 2에 도시한 바와 같이, 반응시간이 6분까지는 오존 자체분해에 의해 발생된 OH 라디칼의 양을 나타낸 것이며, 6분 이후는 본 발명을 적용해서 OH 라디칼을 발생시키는 것을 나타내고 있는데, 오존 자체분해에 의해 발생된 양에 비해 훨씬 많은 양의 OH 라디칼이 본 발명인 신 AOP 공법에 의해 발생되는 것을 볼 수 있다.2 is a result of analyzing the amount of OH radicals generated by the new AOP method and apparatus according to the present invention. As shown in FIG. 2, the reaction time represents the amount of OH radicals generated by ozone self-decomposition up to 6 minutes, and after 6 minutes, it shows that OH radicals are generated by applying the present invention. It can be seen that much larger amounts of OH radicals are generated by the new AOP process of the present invention compared to the amount generated by.
도 3은 본 발명에 따른 신 AOP 공법 및 기존의 타 공정들을 대표적인 난분 해성 유독성물질인 PCE(Tetrachloroethylene)에 각각 적용하여 분해한 실험결과를 비교한 것이다. 즉, 기존의 단일 오존공정, 반도체 촉매공정(ZnO)과 전기분해방식(양극:스테인레스 스틸, 음극:백금) 의 두가지 공정방식을 조합한 공정, 그리고 본 발명인 신 AOP 공법의 세가지 경우에 대하여 PCE 분해에 대한 성능평가를 나타낸 것이다. 도 3에서 보는 바와 같이 본 발명이 반응시간이 20분이 되었을 때 이미 PCE의 농도가 약 1.2 mg/l 를 나타내, 타 공정들에 비해서 가장 짧은 시간에 PCE를 분해한 것으로 나타났다. 즉, 본 발명이 타 공정에 비해, 난분해성 유독성 오염물질에도 비선택적인 장점이 있으며, 또한 많은 양의 OH 라디칼이 생성되는 특징이 있어 수처리 효율이 매우 높으며, 처리시간을 훨씬 단축 시킬 수 있음을 나타냈다.FIG. 3 compares the experimental results obtained by applying the new AOP method and other conventional processes according to the present invention to PCE (Tetrachloroethylene), which is a representative degradable toxic substance, respectively. In other words, PCE decomposition of the three processes of the conventional single ozone process, semiconductor catalytic process (ZnO) and electrolysis method (anode: stainless steel, cathode: platinum) and the new AOP method of the present invention. Performance evaluation is shown. As shown in FIG. 3, when the reaction time was 20 minutes, the concentration of PCE was already about 1.2 mg / l, indicating that PCE was decomposed in the shortest time as compared to other processes. That is, the present invention has a non-selective advantage in the non-degradable toxic contaminants compared to other processes, and also has a feature that generates a large amount of OH radicals, the water treatment efficiency is very high, and can shorten the treatment time much Indicated.
1] 기술적 효과1] Technical effect
OH 라디칼은 환경오염 유·무기물질처리에 10-7∼10-9mol/sec의 빠른 반응속도를 가지고 있으나, 기존의 AOP 공법인 O3/H2O2, O3/UV, O3/UV/H2O2, TiO2/UV 공정 등은 OH 라디칼이 적게 발생되며, 또한 첨가물을 투입하거나 빛을 이용함에 따른 문제점으로 대규모 처리장 건설에 어려움이 있다.The OH radical has a fast reaction rate of 10 -7 to 10 -9 mol / sec for the treatment of environmentally polluting organic and inorganic substances, but O 3 / H 2 O 2 , O 3 / UV, O 3 / UV / H 2 O 2 , TiO 2 / UV process is less generated OH radicals, and there is a difficulty in constructing a large-scale treatment plant due to the problem of adding additives or using light.
그러나, 본 발명은 전기분해장치에 접촉한 반도체 촉매가 여기된 상태에서용존 오존에 전자 전달이 용이하여 OH 라디칼을 훨씬 많이 생산할 수 있고, UV의 단점인 빛의 투과에 대한 제약이 없으므로 대용량 처리가 용이하며, 또한 처리시간이 짧다는 기술적인 효과가 있다.(표1 참조)However, the present invention facilitates electron transfer to the dissolved ozone in the excited state of the semiconductor catalyst in contact with the electrolysis device, and can produce much more OH radicals. It is easy and has a technical effect of short processing time (see Table 1).
2] 경제적 효과2] economic effect
본 발명은 OH 라디칼의 생성량이 많아, 대용량 처리가 용이하며, 처리시간이 짧다는 장점이 있으므로 기존 처리방식에 비해 처리시설이 차지하는 면적이 작고, 환경유기오염물질을 무기질화함으로써 슬리지 발생량이 적어 초기 투자비와 운전경비의 감소로 기존 시설에 비해 상대적으로 경제성이 매우 높다.The present invention has a large amount of OH radicals, which facilitates large-capacity treatment, and has a short treatment time. Therefore, the area occupied by the treatment facility is smaller than that of the conventional treatment method, and the amount of sludge generated is reduced by mineralizing environmental organic pollutants. The economic cost is relatively higher than that of existing facilities due to the reduction of investment cost and operation cost.
3] 사회적 효과3] social effect
환경유·무기오염물질의 처리가 미흡하여 환경생태파괴 및 생활환경의 보건상에 민원이 제기되는 문제 등이 발생하고 있다. 본 발명은 대용량 처리가 용이하고, 슬러지 발생량이 적어 타 처리방법에 비해 지금까지의 환경생태파괴 및 생활환경의 보건상에 야기되는 문제를 해결할 수 있으며, 처리장의 이차 오염원인 슬러지 발생량을 줄일 수 있어, 생활환경을 쾌적하게 꾸밀 수 있는 사회적인 파급효과가 있다.Due to the inadequate treatment of environmental and inorganic pollutants, complaints are raised about the destruction of environmental ecology and the health of the living environment. The present invention is easy to handle large volumes, the amount of sludge generated is less than the other treatment methods to solve the problems caused by environmental damage and the health of the living environment to date, and can reduce the amount of sludge which is a secondary pollution source of the treatment plant There is a social ripple effect that can make living environment pleasant.
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| KR100805378B1 (en) * | 2006-05-25 | 2008-02-25 | (주)지피엔이 | The Combined Process Method and Unit Equipment using Ozone-Electrolysis/Semiconductor Catalysis for Treatment of Non-degradable Waste |
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