KR20050055649A - The process of hybrid system composed of photo-catalytic reactor and biofilter to eliminate vocs and malodor efficiently - Google Patents
The process of hybrid system composed of photo-catalytic reactor and biofilter to eliminate vocs and malodor efficiently Download PDFInfo
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- KR20050055649A KR20050055649A KR1020050039204A KR20050039204A KR20050055649A KR 20050055649 A KR20050055649 A KR 20050055649A KR 1020050039204 A KR1020050039204 A KR 1020050039204A KR 20050039204 A KR20050039204 A KR 20050039204A KR 20050055649 A KR20050055649 A KR 20050055649A
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- 238000000034 method Methods 0.000 title claims abstract description 63
- 230000001699 photocatalysis Effects 0.000 title claims abstract description 32
- 239000002912 waste gas Substances 0.000 claims abstract description 28
- 239000012855 volatile organic compound Substances 0.000 claims abstract description 24
- 239000011521 glass Substances 0.000 claims abstract description 20
- 239000011941 photocatalyst Substances 0.000 claims abstract description 18
- 235000019645 odor Nutrition 0.000 claims abstract description 16
- 230000026676 system process Effects 0.000 claims abstract description 15
- 244000005700 microbiome Species 0.000 claims abstract description 13
- 238000013032 photocatalytic reaction Methods 0.000 claims abstract description 13
- 238000009303 advanced oxidation process reaction Methods 0.000 claims abstract description 12
- 239000011324 bead Substances 0.000 claims abstract description 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000000126 substance Substances 0.000 claims abstract description 6
- 231100000331 toxic Toxicity 0.000 claims abstract description 6
- 230000002588 toxic effect Effects 0.000 claims abstract description 6
- 230000007797 corrosion Effects 0.000 claims abstract description 5
- 238000005260 corrosion Methods 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims abstract description 5
- 239000011248 coating agent Substances 0.000 claims abstract description 4
- 238000000576 coating method Methods 0.000 claims abstract description 4
- 238000006303 photolysis reaction Methods 0.000 claims abstract description 4
- 238000000354 decomposition reaction Methods 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 10
- 230000008030 elimination Effects 0.000 abstract description 10
- 238000003379 elimination reaction Methods 0.000 abstract description 10
- 230000000813 microbial effect Effects 0.000 abstract description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 8
- 239000002361 compost Substances 0.000 abstract description 6
- 150000002894 organic compounds Chemical class 0.000 abstract description 6
- 239000000969 carrier Substances 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000001782 photodegradation Methods 0.000 abstract description 3
- -1 bark Substances 0.000 abstract description 2
- 230000003247 decreasing effect Effects 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract description 2
- 239000003415 peat Substances 0.000 abstract description 2
- 239000011148 porous material Substances 0.000 abstract description 2
- 238000003889 chemical engineering Methods 0.000 abstract 1
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 18
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 12
- 239000007789 gas Substances 0.000 description 5
- 239000003344 environmental pollutant Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 239000005446 dissolved organic matter Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000005297 pyrex Substances 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 239000010920 waste tyre Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/75—Multi-step processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/02—Loose filtering material, e.g. loose fibres
- B01D39/06—Inorganic material, e.g. asbestos fibres, glass beads or fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/84—Biological processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/88—Handling or mounting catalysts
- B01D53/885—Devices in general for catalytic purification of waste gases
-
- B01J35/39—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/80—Type of catalytic reaction
- B01D2255/802—Photocatalytic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/90—Odorous compounds not provided for in groups B01D2257/00 - B01D2257/708
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/804—UV light
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
본 발명은 작업환경개선과 대기환경보전을 위하여 일반 공장, 퇴비공장 등을 포함하는 작업장 또는 작업실 내부의 휘발성 유기화합물 또는 악취를 포함한 대기 또는 폐가스를 지속적으로 정화시키고 배출하기 위한 광촉매반응기와 바이오필터로 조합된 hybrid시스템의 공정에 관한 것이다. 광촉매반응기는, 내경은 투명한 유리관으로 제작되고 외경은 차폐된 유리 또는 내부식성이 있는 플라스틱 또는 금속으로 제작된 환형의 이중 관을 제작하여 내경 및 외경 사이에는 TiO2를 포함하는 광촉매로 코팅한 유리구슬로서 충전시키고 내경의 안쪽에는 자외선램프를 삽입하여 광촉매로 코팅된 유리구슬 사이로 통과하여 배출되는 대기 또는 폐가스에 포함된 휘발성 유기화합물 또는 악취성분에 대한 광촉매에 의한 광분해반응을 유도하였다. 또한 대기 또는 폐가스가 접촉하는 내경의 바깥쪽 및 외경의 안쪽에도 광촉매로 코팅을 하여서 광분해반응을 개선하였다.The present invention provides a photocatalytic reactor and a biofilter for continuously purifying and discharging air or waste gas containing volatile organic compounds or odors in a workplace or a work room including a general factory, a compost factory, etc., for improving the working environment and preserving the air environment. It relates to a process of combined hybrid system. The photocatalytic reactor is a glass beads coated with a photocatalyst containing TiO2 between an inner diameter and an outer diameter by making a circular double tube made of a transparent glass tube with an inner diameter and a shielded glass or a plastic or metal having corrosion resistance. The inside of the inner diameter was filled with an ultraviolet lamp to induce photodegradation reaction by photocatalyst for volatile organic compounds or odorous components contained in the atmosphere or waste gas discharged through the glass beads coated with photocatalyst. In addition, the photolysis reaction was improved by coating a photocatalyst on the outside of the inner diameter and the inside of the outer diameter to which the atmosphere or waste gas contacted.
한편 바이오필터는 미생물 담체로서 퇴비(compost), 바크(bark) 및 피트(peat) 등을 포함한 유기담체를 주로 쓰고 지지체로서 활성탄(granular activated carbon) 또는 내부 기공이 크게 압출 가공된 폐타이어담체(참조 화학공학, 39(5), 600-606)를 바이오필터 내부에 충전하였다.On the other hand, the biofilter mainly uses organic carriers including compost, bark, and peat as a microbial carrier, and granular activated carbon or internal tires with large internal pores as a support. Chemical Engineering, 39 (5), 600-606) were charged inside the biofilter.
본 발명의 특징은 첫째로 광촉매반응과 같은 AOP(Advanced Oxidation Process)가 미생물에 난분해성이거나 독성이 있는 휘발성 유기화합물 또는 악취발생물질을 OH 라디칼로 산화 분해하여 작은 BDOC(Biologically degradable organic compound)를 생성시키거나 농도를 낮추어서 다음 공정인 바이오필터에서의 미생물처리가 용이하도록 한 hybrid시스템의 공정이다. 두 번째 특징은 기존의 바이오필터 공정에 전 공정으로서 광촉매분해공정을 추가한 hybrid시스템의 휘발성 유기화합물에 대한 제거용량(elimination capacity) 증가분에 대하여, 광촉매분해공정의 직접적인 공헌도 보다 hybrid시스템공정의 synergy효과로서 창출된 간접적인 공헌도가 배 이상 크다는 것이다. 단 이 발명은 휘발성 유기화합물 또는 악취를 포함한 대기 또는 폐가스를 지속적으로 정화시키고 배출하기 위한 광촉매반응기와 바이오필터로 조합된 hybrid시스템의 공정 특성 모두를 포함한다.First, AOP (Advanced Oxidation Process), such as photocatalytic reaction, oxidizes volatile organic compounds or odor generating substances that are hardly degradable or toxic to microorganisms with OH radicals to produce small BDOC (Biologically degradable organic compounds). It is a hybrid system process that makes it easy to process microorganisms in the biofilter, which is the next process by lowering or decreasing the concentration. The second feature is the synergy effect of the hybrid system process rather than the direct contribution of the photocatalytic decomposition process to the increase in elimination capacity of volatile organic compounds in the hybrid system, which adds the photocatalytic decomposition process to the existing biofilter process. Indirect contributions created by However, the present invention includes all the process characteristics of a hybrid system combined with a photocatalytic reactor and a biofilter for continuously purifying and releasing air or waste gas containing volatile organic compounds or odors.
Description
본 발명은 작업환경개선과 대기환경보전을 위하여 일반 공장, 퇴비공장 등을 포함하는 작업장 또는 작업실 내부의 휘발성 유기화합물 또는 악취를 포함한 대기 또는 폐가스를 지속적으로 정화시키고 배출하기 위한 광촉매반응기와 바이오필터로 조합된 도 1과 같은 hybrid시스템의 공정에 관한 것이다. 전 공정으로서 광촉매반응과 같은 AOP(Advanced Oxidation Process)가 미생물에 난분해성이거나 독성이 있는 휘발성 유기화합물 또는 악취발생물질을 OH 라디칼로 산화 분해하여 작은 BDOC(Biologically degradable organic compound)를 생성시키거나 농도를 낮추어서 후 공정인 바이오필터에서의 미생물처리가 용이하도록 한 hybrid시스템의 공정이다. 도 2와 같은 기존의 바이오필터 공정에 광촉매분해공정을 전 공정으로서 추가한 hybrid시스템의 휘발성 유기화합물에 대한 제거용량(elimination capacity) 증가분에 대하여, 광촉매분해공정의 직접적인 공헌도 보다 hybrid시스템공정의 synergy효과로서 창출된 간접적인 공헌도가 배 이상 크다는 것이 본 발명의 실시 예에서 입증되었다.The present invention provides a photocatalytic reactor and a biofilter for continuously purifying and discharging air or waste gas containing volatile organic compounds or odors in a workplace or a work room including a general factory, a compost factory, etc., for improving the working environment and preserving the air environment. It relates to a process of the hybrid system as shown in FIG. As a preliminary process, AOP (Advanced Oxidation Process) such as photocatalytic reaction oxidizes volatile organic compounds or odor generating substances that are hardly degradable or toxic to microorganisms with OH radicals to produce small BDOC (Biologically degradable organic compounds) It is a hybrid system process that makes it easy to process microorganisms in the biofilter, which is a post process. The synergy effect of the hybrid system process rather than the direct contribution of the photocatalytic decomposition process to the increase in elimination capacity for the volatile organic compounds of the hybrid system in which the photocatalytic decomposition process is added to the existing biofilter process as shown in FIG. It has been demonstrated in the embodiment of the present invention that the indirect contribution created as more than twice as large.
본 발명의 hybrid시스템은 광촉매반응기 및 바이오필터공정이 각각 전 공정 및 후 공정으로 이루어져 있다. 광촉매반응기는, 내경은 투명한 유리관으로 제작되고 외경은 차폐된 유리 또는 내부식성이 있는 플라스틱 또는 금속으로 제작된 환형의 이중 관을 제작하여 내경 및 외경 사이에는 TiO2를 포함하는 광촉매로 코팅한 유리구슬로서 충전시키고 내경의 안쪽에는 자외선램프를 삽입하여 광촉매로 코팅된 유리구슬 사이로 통과하여 배출되는 대기 또는 폐가스에 포함된 휘발성 유기화합물 또는 악취성분에 대한 광촉매에 의한 광분해반응을 유도하였다. 또한 대기 또는 폐가스가 접촉하는 내경의 바깥쪽 및 외경의 안쪽에도 광촉매로 코팅을 하여서 광분해반응을 개선하였다.In the hybrid system of the present invention, the photocatalytic reactor and the biofilter process each consist of a pre-process and a post-process. The photocatalytic reactor is a glass beads coated with a photocatalyst containing TiO2 between an inner diameter and an outer diameter by making a circular double tube made of a transparent glass tube with an inner diameter and a shielded glass or a plastic or metal having corrosion resistance. The inside of the inner diameter was filled with an ultraviolet lamp to induce photodegradation reaction by photocatalyst for volatile organic compounds or odorous components contained in the atmosphere or waste gas discharged through the glass beads coated with photocatalyst. In addition, the photolysis reaction was improved by coating a photocatalyst on the outside of the inner diameter and the inside of the outer diameter to which the atmosphere or waste gas contacted.
본 발명의 특징은 첫째로 전 공정으로서 광촉매반응과 같은 AOP(Advanced Oxidation Process)가 미생물에 난분해성이거나 독성이 있는 휘발성 유기화합물 또는 악취발생물질을 OH 라디칼로 산화 분해하여 작은 BDOC(Biologically degradable organic compound)를 생성시키거나 농도를 낮추어서 후 공정인 바이오필터에서의 미생물처리가 용이하도록 한 hybrid시스템의 공정이다. 두 번째 특징은 기존의 바이오필터 공정에 전 공정으로서 광촉매분해공정을 추가한 hybrid시스템의 휘발성 유기화합물에 대한 제거용량(elimination capacity) 증가분에 대하여, 광촉매분해공정의 직접적인 공헌도 보다 hybrid시스템공정의 synergy효과로서 창출된 간접적인 공헌도가 배 이상 크다는 것이다. 단 이 발명은 휘발성 유기화합물 또는 악취를 포함한 대기 또는 폐가스를 지속적으로 정화시키고 배출하기 위한 전 공정인 광촉매반응기와 후 공정인 바이오필터로 조합된 hybrid시스템의 공정 특성 모두를 포함한다.The characteristics of the present invention are firstly a small Biologically degradable organic compound by oxidatively decomposing volatile organic compounds or odor-producing substances which are hardly decomposable or toxic to microorganisms by OH radicals, such as photocatalytic reactions. ) Is a hybrid system process that facilitates the microbial treatment in the biofilter, which is a post-process by generating or decreasing the concentration. The second feature is the synergy effect of the hybrid system process rather than the direct contribution of the photocatalytic decomposition process to the increase in elimination capacity of volatile organic compounds in the hybrid system, which adds the photocatalytic decomposition process to the existing biofilter process. Indirect contributions created by However, the present invention includes all the process characteristics of the hybrid system which is combined with the photocatalytic reactor which is a pre-process and the post-filter biofilter to continuously purify and discharge the air or waste gas containing volatile organic compounds or odors.
작업장에서 배출된 휘발성 유기화합물 또는 악취를 포함한 대기 또는 폐가스의 처리를 위한 종래의 기술로서 폐가스의 온도가 상온에 가까운 경우에 일반적으로 경제적인 도 2와 같은 바이오필터공정을 사용한다. 낮은 농도의 생분해성 휘발성 유기물을 포함하고 있는 다량의 공기를 처리하는 데 있어서 바이오 필터 기술은 경제성에 있어 더욱 큰 이점이 있어 경제적인 해결책을 제시하고 있다. 그러나 폐가스에 함유된 두가지 이상의 오염원들의 분해에 관여되는 서로 다른 미생물의 적정조건이 아주 다른 경우나, 다른 VOC보다 처리효율이 떨어지는 미생물에 난분해성이거나 독성이 있는 경우 바이오필터의 활용이 제한되어 왔다. 또한 유무기 악취가스를 제거하기 위하여 악취가스를 건물옥상에 위치한 바이오필터를 통과시켜서 생물학적 처리를 수행한 후에 처리가스를 광촉매가 코팅된 지붕과 지붕상부 내측의 광촉매필터를 통과시키는 실용신안등록(20-0351908-0000, 2004.05.20)이 되어 있으나 이것은 본 발명의 특성이 대기 및 폐가스 처리를 전술한 바와 같이 효율적으로 수행하기 위하여 hybrid시스템공정에서 광촉매반응기 및 바이오필터가 각각 전 공정 및 후 공정으로 배열된다는 점에서 큰 차이점이 있다. Conventional techniques for the treatment of atmospheric or waste gases containing volatile organic compounds or odors emitted from the workplace are generally economical biofilter process as shown in Figure 2 when the temperature of the waste gas is close to room temperature. In treating large quantities of air containing low concentrations of biodegradable volatile organics, biofilter technology has an economical advantage, providing an economical solution. However, the use of biofilters has been limited when the proper conditions of different microorganisms involved in the decomposition of two or more pollutants contained in the waste gas are very different, or when the microorganisms are less degradable or toxic to microorganisms having lower processing efficiency than other VOCs. In addition, the utility model registration to pass the treatment gas through the photocatalyst-coated roof and the upper photocatalyst filter after biological treatment by passing the odor gas through a bio filter located on the building roof to remove the organic and inorganic odor gas (20) -0351908-0000, 2004.05.20), but the characteristics of the present invention are that the photocatalytic reactor and the biofilter are arranged before and after respectively in the hybrid system process in order to perform the air and waste gas treatment efficiently as described above. There is a big difference in that.
폐수처리에 있어서 오존처리와는 다르게 AOP(Advanced Oxidation Processes)는 미생물에 난분해성인 용존 유기물을 발생된 OH 라디칼로 분해하여 작은 BDOC(Biologically degradable organic compound)를 생성시켜서 미생물 처리가 용이하도록 하여준다고 보고되고 있다. 이것을 폐가스처리에 응용할 때에, 폐가스처리를 위한 바이오필터의 경우에도 습도가 99% 이상에 달하는 운전조건을 부여하고 미생물막이 부착된 담체의 표면은 고정된 액상층으로 둘러싸여서 용존유기물을 함유하므로, AOP를 폐가스처리에 적용시켜서 난분해성 유기화합물을 BDOC로 전환하여 기존 바이오필터의 처리효율을 제고할 수 있다. 또한 폐가스에 함유된 두 가지 이상의 오염원들의 독성 또는 pH와 같은 처리조건이 아주 다를 때에는 동시 처리가 불가능하여 미생물에 더욱 난분해성인 오염원을 AOP로서 처리하고 바이오필터의 운전조건은 나머지 오염원의 처리를 위하여 선택할 수 있다. VOC가 에탄올과 톨루엔인 경우에 전 공정인 광촉매분해공정을 기존의 바이오필터 공정에 추가한 hybrid시스템의 경우, 에탄올 제거용량(elimination capacity)의 증가분을 100%라고 할 때에 광촉매분해공정의 직접적인 공헌도는 21.5%이고 hybrid시스템공정의 synergy효과로서 창출된 간접적인 공헌도는 78.5%를 보였다. 한편 톨루엔 제거용량(elimination capacity)의 증가분을 100%라고 할 때에 광촉매분해공정의 직접적인 공헌도는 17.5%이고 hybrid시스템공정의 synergy효과로서 창출된 간접적인 공헌도는 82.5%를 보였다. 이와 같이 본 발명에서 이루고자 하는 기술적 과제는 AOP로서 광촉매 반응을 선택하여 전 공정인 광촉매분해공정과 후 공정인 바이오필터공정으로 이루어진 HYBRID 시스템의 전술된 공정특성을 폐가스처리에 효율적으로 활용하는 것이다.Unlike ozone treatment in wastewater treatment, AOP (Advanced Oxidation Processes) breaks down dissolved organic matter that is hardly decomposable into microorganisms to generate small BDOC (Biologically degradable organic compounds) to facilitate microbial treatment. It is becoming. When this is applied to waste gas treatment, even in the case of a biofilter for waste gas treatment, it gives an operating condition that the humidity reaches 99% or more, and the surface of the carrier with the microbial membrane is surrounded by a fixed liquid layer to contain dissolved organic matter. Can be applied to waste gas treatment to convert the biodegradable organic compounds into BDOC to improve the treatment efficiency of existing biofilters. In addition, when the treatment conditions such as toxicity or pH of two or more pollutants contained in the waste gas are very different, simultaneous treatment is not possible. Therefore, the pollutants that are more difficult to decompose to microorganisms are treated as AOP and the operating conditions of the biofilter are for You can choose. In the case of a hybrid system in which VOC is ethanol and toluene, the photocatalytic decomposition process is added to the existing biofilter process, and the direct contribution of the photocatalytic decomposition process is 100% when the increase in ethanol elimination capacity is 100%. 21.5% and indirect contribution generated as a synergy effect of hybrid system process was 78.5%. On the other hand, when the increase in toluene elimination capacity was 100%, the direct contribution of the photocatalytic decomposition process was 17.5% and the indirect contribution generated as a synergy effect of the hybrid system process was 82.5%. As described above, the technical problem to be achieved in the present invention is to select the photocatalytic reaction as the AOP and effectively utilize the aforementioned process characteristics of the HYBRID system consisting of the photocatalytic decomposition process, which is a pre-process, and the biofilter process, which is a post-process.
본 발명의 실시예에 따른 구성은 다음과 같다. 본 발명의 hybrid시스템은 도 1과 같이 광촉매반응기(3) 및 바이오필터공정(12)이 각각 전 공정 및 후 공정으로 이루어져 있다.The configuration according to the embodiment of the present invention is as follows. In the hybrid system of the present invention, the photocatalytic reactor 3 and the biofilter process 12 are composed of pre-process and post-process, respectively, as shown in FIG. 1.
광촉매반응기(3)는, 내경은 투명한 유리관(4)으로 제작되고 외경은 차폐된 유리 또는 내부식성이 있는 플라스틱 또는 금속으로 제작된 환형의 이중 관을 제작하여 내경 및 외경 사이에는 TiO2를 포함하는 광촉매로 코팅한 유리구슬(6)로서 충전시키고 내경의 안쪽에는 자외선램프(5)를 삽입하여 광촉매로 코팅된 유리구슬(6) 사이로 통과하여 배출되는 대기 또는 폐가스(7)에 포함된 휘발성 유기화합물 또는 악취성분에 대한 광촉매에 의한 광분해반응을 유도하였다. 또한 대기 또는 폐가스가 접촉하는 내경의 바깥쪽 및 외경의 안쪽에도 광촉매로 코팅을 하여서 광분해반응을 개선하였다.The photocatalytic reactor 3 is made of a transparent glass tube 4 with an inner diameter and an annular double tube made of shielded glass or a corrosion-resistant plastic or metal, and has a photocatalyst including TiO 2 between the inner and outer diameters. Volatile organic compounds contained in the atmosphere or waste gas (7) filled with glass beads (6) coated with glass beads and inserted into the inner diameter of the ultraviolet lamp (5) through the glass beads (6) coated with a photocatalyst. Photodegradation reaction by photocatalyst for malodorous component was induced. In addition, the photolysis reaction was improved by coating a photocatalyst on the outside of the inner diameter and the inside of the outer diameter to which the atmosphere or waste gas contacted.
전 공정인 광촉매반응공정(3)으로 처리된 폐가스(7)는 후 공정인 바이오필터(12)의 상부로 인입하여 바이오필터 내부에 충진된 미생물담체(13) 사이를 통과하면서 바이오필터 인입가스(8)에 포함된 휘발성 유기화합물이나 악취발생원을 미생물막에 의한 흡수 및 생분해를 통하여 제거하게 되어 hybrid시스템으로 처리된 폐가스(9)가 대기로 배출된다. 한편 바이오필터(12)는 미생물 담체(13)로서 퇴비(compost), 바크(bark) 및 피트(peat) 등을 포함한 유기담체를 주로 쓰고 지지체로서 활성탄(granular activated carbon) 또는 내부 기공이 크게 압출 가공된 폐타이어담체(참조 화학공학지, 39(5), 600-606)를 바이오필터(12) 내부에 충전하였다. 바이오필터(12) 내부의 미생물담체(13)의 적당한 습도를 유지시켜주기 위하여 스프레이(10)로 주기적으로 수분을 공급해 주어야 한다.Waste gas (7) treated in the photocatalytic reaction process (3), which is the previous process, is introduced into the upper part of the biofilter (12), which is a later process, and passes through the microbial carrier (13) filled in the biofilter. Volatile organic compounds or odor generating sources contained in 8) are removed through absorption and biodegradation by the microbial membrane, and the waste gas 9 treated by the hybrid system is discharged to the atmosphere. On the other hand, the biofilter 12 mainly uses organic carriers including compost, bark, and peat as the microorganism carrier 13, and granular activated carbon or internal pores are greatly extruded as a support. Waste tire carriers (cf. 39 (5), 600-606) were filled into the biofilter 12. In order to maintain proper humidity of the microbial carrier 13 inside the biofilter 12, the spray 10 should be periodically supplied with moisture.
실시예 1 Example 1
다음은 본 발명과 같은 전 공정인 광촉매반응기와 후 공정인 바이오필터로 조합된 hybrid시스템 공정을 사용하여 에탄올과 톨루엔이 포함된 폐가스를 처리한 결과이다. 전 공정인 광촉매반응기로서 4cm(내경)x8cm(외경)x47cm(길이)의 환형 pyrex관을 사용하였고 광원으로서 15W UV-A 램프를 사용하였다. 한편 후 공정인 바이오필터는 5cm(지름)x25cm(길이)의 튜브를 위단과 아랫단으로 하여 동부피의 퇴비(compost) 및 활성탄(granular activated carbon)으로 구성된 미생물담체를 각각 18cm 및 20cm를 채웠다.The following is a result of treating waste gas containing ethanol and toluene using a hybrid system process, which is a combination of a photocatalytic reactor and a biofilter as a preprocess, such as the present invention. As a photocatalyst, a circular pyrex tube of 4 cm (inner diameter) x 8 cm (outer diameter) x 47 cm (length) was used, and a 15 W UV-A lamp was used as a light source. On the other hand, the biofilter, which is a post process, filled the microbial carrier composed of compost and granular activated carbon of 18 cm and 20 cm, respectively, with 5 cm (diameter) x 25 cm (length) tubes at the upper and lower ends.
Table 1. 전 공정인 광촉매반응공정의 hybrid시스템 성능에 대한 기여도Table 1. Contribution to Hybrid System Performance of Photocatalytic Reaction Process
Table 1에서와 같이 에탄올과 톨루엔의 동시제거인 경우에 전 공정인 광촉매분해공정을 기존의 바이오필터 공정에 추가한 hybrid시스템의 경우, 에탄올 제거용량(elimination capacity)의 증가분을 100%라고 할 때에 광촉매분해공정의 직접적인 공헌도는 21.5%이고 hybrid시스템공정의 synergy효과로서 창출된 간접적인 공헌도는 78.5%를 보였다. 한편 톨루엔 제거용량(elimination capacity)의 증가분을 100%라고 할 때에 광촉매분해공정의 직접적인 공헌도는 17.5%이고 hybrid시스템공정의 synergy효과로서 창출된 간접적인 공헌도는 82.5%를 보였다. 이와 같이 전 공정인 광촉매분해공정과 후 공정인 바이오필터공정으로 이루어진 hybrid시스템의 synergy효과를 창출하는 공정특성을 폐가스처리에 효율적으로 활용하여 경제적으로 폐가스처리시스템의 효율을 극대화하였다.As shown in Table 1, in the case of the simultaneous removal of ethanol and toluene, in the hybrid system in which the photocatalytic decomposition process is added to the existing biofilter process, the increase in the ethanol elimination capacity is 100%. The direct contribution of the decomposition process was 21.5% and the indirect contribution generated as a synergy effect of the hybrid system process was 78.5%. On the other hand, when the increase in toluene elimination capacity was 100%, the direct contribution of the photocatalytic decomposition process was 17.5% and the indirect contribution generated as a synergy effect of the hybrid system process was 82.5%. In this way, the efficiency of the waste gas treatment system was maximized economically by efficiently utilizing the process characteristics that create the synergy effect of the hybrid system consisting of the photocatalytic decomposition process, which is a pre-process, and the biofilter process, which is a post-process.
본 발명의 효과는 첫째로 기존의 바이오필터는 미생물에 난분해성이거나 독성이 있는 휘발성 유기화합물 또는 악취발생물질을 포함한 배출가스를 처리할 수 없다. 따라서 Hybrid시스템의 전 공정으로서 광촉매반응과 같은 AOP(Advanced Oxidation Process)가 미생물에 난분해성이거나 독성이 있는 휘발성 유기화합물 또는 악취발생물질을 OH 라디칼로 산화 분해하여 작은 BDOC(Biologically degradable organic compound)를 생성시키거나 농도를 낮추어서 다음 공정인 바이오필터에서의 미생물처리가 용이하도록 한 것이다. 두 번째는 기존의 바이오필터 공정에 전 공정으로서 광촉매분해공정을 추가한 hybrid시스템의 휘발성 유기화합물에 대한 제거용량(elimination capacity) 증가분에 대하여, 광촉매분해공정의 직접적인 공헌도 보다 hybrid시스템공정의 synergy효과로서 창출된 간접적인 공헌도가 배 이상 크도록 하게하여 hybrid시스템의 휘발성 유기화합물에 대한 높은 제거용량(elimination capacity) 뿐만 아니라 hybrid시스템의 높은 경제성에 있다.The effect of the present invention is that the existing biofilter can not treat the exhaust gas containing volatile organic compounds or odor generating substances that are difficult to decompose or toxic to microorganisms. Therefore, AOP (Advanced Oxidation Process) such as photocatalytic reaction is oxidatively decomposed volatile organic compound or odor generating substance into OH radical as a whole process of hybrid system to generate small BDOC (Biologically degradable organic compound). In order to facilitate the microbial treatment in the biofilter, the next step is to reduce the concentration. The second is the synergy effect of the hybrid system process rather than the direct contribution of the photocatalytic decomposition process to the increase in elimination capacity of volatile organic compounds in the hybrid system, which adds the photocatalytic decomposition process to the existing biofilter process. By making the indirect contribution generated more than twice as high, it is not only the high elimination capacity for volatile organic compounds in the hybrid system, but also the high economic efficiency of the hybrid system.
도 1은 본 발명의 실시예에 따른 광촉매반응공정의 특성을 활용하여 대기 또는 폐가스에 포함된 휘발성 유기화합물 또는 악취를 효율적으로 제거하기 위한 광촉매반응기와 바이오필터로 조합된 hybrid시스템 공정이다.1 is a hybrid system process combined with a photocatalytic reactor and a biofilter for efficiently removing volatile organic compounds or odors contained in the atmosphere or waste gas by utilizing the characteristics of the photocatalytic reaction process according to an embodiment of the present invention.
도 2는 종래의 바이오필터이다.2 is a conventional biofilter.
다음은 도면의 주요부분에 대한 부호 설명이다.The following is a description of the reference numerals for the main parts of the drawings.
1. 작업장1. Workshop
2. 블로워(blower)2. Blower
3. 광촉매반응기3. Photocatalytic Reactor
4. 유리관4. glass tube
5. 광원5. Light source
6. 광촉매 코팅된 유리구슬6. Photocatalyst coated glass beads
7. 광촉매반응공정으로 처리된 폐가스7. Waste gas treated by photocatalytic reaction process
8. 바이오필터 인입가스8. Biofilter Inlet Gas
9. Hybrid시스템으로 처리된 폐가스9. Waste gas treated by Hybrid system
10. 스프레이(spray)10. Spray
11. 펌프11. Pump
12. 바이오필터12. Biofilter
13. 미생물담체(퇴비 및 활성탄) 13. Microbial carriers (compost and activated carbon)
14. 바이오필터로 처리된 폐가스 14. Waste gas treated with biofilter
Claims (3)
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100666269B1 (en) * | 2005-05-11 | 2007-01-09 | 이은주 | The process of hybrid system composed of tube-shaped photo-catalytic reactor and biofilter to eliminate VOCs and malodor efficiently |
| KR100766272B1 (en) * | 2006-03-28 | 2007-10-12 | 임광희 | hybrid system composed of UVor VIS-/photo-catalytic reactor, mixing chamber and biofilter |
| CN105195011A (en) * | 2015-10-29 | 2015-12-30 | 安徽爱弥儿环境科技有限公司 | Active biological nano photo-catalyzed lytic enzyme |
| CN106178942A (en) * | 2016-08-10 | 2016-12-07 | 北京诚益通控制工程科技股份有限公司 | Photocatalysis and the Apparatus and method for of wet method combined process volatile organic matter |
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| CN110252101A (en) * | 2019-07-12 | 2019-09-20 | 无锡市政设计研究院有限公司 | Cyanobacteria algal gel high-concentration waste gas cleaning treatment system and its treatment process |
| KR102557943B1 (en) | 2021-07-29 | 2023-07-21 | 유한회사 네오클 | Physical and Chemical Deodorization System and Method using Gaseous Chlorine Dioxide Adsorption on Silica Gel and UV Irradiation as well as Adsorption-Desorption on-Shifts Process |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100666269B1 (en) * | 2005-05-11 | 2007-01-09 | 이은주 | The process of hybrid system composed of tube-shaped photo-catalytic reactor and biofilter to eliminate VOCs and malodor efficiently |
| KR100766272B1 (en) * | 2006-03-28 | 2007-10-12 | 임광희 | hybrid system composed of UVor VIS-/photo-catalytic reactor, mixing chamber and biofilter |
| CN105195011A (en) * | 2015-10-29 | 2015-12-30 | 安徽爱弥儿环境科技有限公司 | Active biological nano photo-catalyzed lytic enzyme |
| CN106178942A (en) * | 2016-08-10 | 2016-12-07 | 北京诚益通控制工程科技股份有限公司 | Photocatalysis and the Apparatus and method for of wet method combined process volatile organic matter |
| CN106178942B (en) * | 2016-08-10 | 2018-12-11 | 北京诚益通控制工程科技股份有限公司 | The device and method of photocatalysis and wet method combined processing volatile organic matter |
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