KR100497188B1 - Detoxification method of dioxins in incineration ashes using slag - Google Patents
Detoxification method of dioxins in incineration ashes using slag Download PDFInfo
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- KR100497188B1 KR100497188B1 KR10-2002-0052837A KR20020052837A KR100497188B1 KR 100497188 B1 KR100497188 B1 KR 100497188B1 KR 20020052837 A KR20020052837 A KR 20020052837A KR 100497188 B1 KR100497188 B1 KR 100497188B1
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- Prior art keywords
- incineration ash
- dioxin
- steelmaking slag
- dioxins
- slag
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- 239000002893 slag Substances 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 24
- 150000002013 dioxins Chemical class 0.000 title abstract description 18
- 239000002956 ash Substances 0.000 title description 37
- 235000002918 Fraxinus excelsior Nutrition 0.000 title description 3
- 238000001784 detoxification Methods 0.000 title 1
- 238000009628 steelmaking Methods 0.000 claims abstract description 31
- 239000002131 composite material Substances 0.000 claims abstract description 20
- 239000002002 slurry Substances 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 claims description 29
- 238000000354 decomposition reaction Methods 0.000 claims description 17
- 238000010335 hydrothermal treatment Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 2
- KVGZZAHHUNAVKZ-UHFFFAOYSA-N 1,4-Dioxin Chemical compound O1C=COC=C1 KVGZZAHHUNAVKZ-UHFFFAOYSA-N 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000035484 reaction time Effects 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 231100000419 toxicity Toxicity 0.000 description 3
- 230000001988 toxicity Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 125000001309 chloro group Chemical group Cl* 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- -1 of isomers (Polychlorinated Dibenzo-p-Dioxin Chemical class 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 206010007269 Carcinogenicity Diseases 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- JAWMENYCRQKKJY-UHFFFAOYSA-N [3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-ylmethyl)-1-oxa-2,8-diazaspiro[4.5]dec-2-en-8-yl]-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]methanone Chemical compound N1N=NC=2CN(CCC=21)CC1=NOC2(C1)CCN(CC2)C(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F JAWMENYCRQKKJY-UHFFFAOYSA-N 0.000 description 1
- 230000007059 acute toxicity Effects 0.000 description 1
- 231100000403 acute toxicity Toxicity 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 230000007670 carcinogenicity Effects 0.000 description 1
- 231100000260 carcinogenicity Toxicity 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000002290 gas chromatography-mass spectrometry Methods 0.000 description 1
- 210000004602 germ cell Anatomy 0.000 description 1
- 238000004896 high resolution mass spectrometry Methods 0.000 description 1
- 230000007688 immunotoxicity Effects 0.000 description 1
- 231100000386 immunotoxicity Toxicity 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 235000013980 iron oxide Nutrition 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000011268 mixed slurry Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 231100000167 toxic agent Toxicity 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Fire-Extinguishing Compositions (AREA)
Abstract
본 발명은 제강 슬래그를 이용한 소각회내의 다이옥신 분해방법에 관한 것이다. 특히 본 발명은 소각회에 제강 슬래그 및 물을 혼합하여 소각회 및 제강 슬래그 복합슬러리를 제조하고, 상기 복합슬러리를 수열처리하는 것을 포함하는 다이옥신 분해방법에 관한 것으로, 본 발명의 다이옥신 분해방법은 제강 슬래그를 재활용하여 공정비용이 저렴하고, 다이옥신의 제거효과가 우수하다.The present invention relates to a method for decomposing dioxins in incineration ash using steelmaking slag. In particular, the present invention relates to a dioxin decomposing method comprising mixing incineration ash with steelmaking slag and water to prepare an incineration ash and steelmaking slag composite slurries, and hydrothermally treating the composite slurries. The slag is recycled and the process cost is low, and the removal effect of dioxin is excellent.
Description
[발명이 속하는 기술분야][TECHNICAL FIELD OF THE INVENTION]
본 발명은 제강 슬래그를 이용한 소각회내의 다이옥신 분해방법에 관한 것으로, 보다 상세하게는 소각회에 제강 슬래그 및 물을 투여하고, 수열처리하는 것을 포함하는 다이옥신 분해방법에 관한 것이다.The present invention relates to a method for decomposing dioxins in incineration ash using steelmaking slag, and more particularly, to a method for decomposing dioxins comprising administering steelmaking slag and water to incineration ash and hydrothermal treatment.
[종래기술][Private Technology]
다이옥신은 75종의 이성질체를 갖는 다이옥신류(Polychlorinated Dibenzo-p-Dioxin, PCDDs)와 135종의 이성질체를 갖는 퓨란류(Polychlorinated Dibenzo Furans, PCDFs)를 총칭하여 나타내는 용어로서, 이들 물질은 치환된 염소 원자 갯수나 위치에 따라 다른 성질을 갖지만 보통 다이옥신으로 총칭한다. 다이옥신은 지용성이 높고 물에 잘 녹지 않아서 미생물 분해가 어려운 매우 안정한 상태이며, 자연계에서는 거의 분해되지 않기 때문에 그 독성이 실질적으로 거의 영구적이다. 따라서 다이옥신류는 심각한 환경 오염원으로 알려져 있다. 상기한 210가지의 다이옥신 이성질체들은 유사한 물리적 및 화학적 성질을 가지고 있지만 그 독성은 각각 차이가 있다. 이중에서도 가장 독성이 큰 것으로 알려져 있는 화합물로는 염소치환 갯수가 4개인 2,3,7,8-TCDD로서 여러 가지 급만성 독성을 나타내며, 면역독성, 생식계 독성, 및 발암성 등을 나타내는 것으로 알려져 있다. Dioxin is a generic term for 75 kinds of isomers (Polychlorinated Dibenzo-p-Dioxin, PCDDs) and 135 kinds of isomers (Polychlorinated Dibenzo Furans, PCDFs), these substances are substituted chlorine atoms Depending on the number and location of the properties, but usually referred to as dioxin. Dioxin is a very stable condition that is difficult to break down microorganisms because it is highly soluble and insoluble in water, and its toxicity is practically almost permanent since it is hardly decomposed in nature. Dioxins are therefore known as serious environmental pollutants. The 210 dioxin isomers described above have similar physical and chemical properties, but their toxicity is different. Among them, the most toxic compound is 2,3,7,8-TCDD with 4 chlorine substitutions. It has various acute toxicity and is known to show immunotoxicity, germline toxicity, and carcinogenicity. have.
한편, 쓰레기를 소각시키거나 기타 철강공정 등에서 원료를 소성가열시킬 때 발생하는 소각회내에는 다이옥신이 다량 함유되어 있다. 이에, 소각회내의 다이옥신을 처리할 수 있는 방법들이 제시되고 있으나, 경제적이면서도 효율적인 처리방법이 확립되지 못한 실정이다. On the other hand, incineration ash generated when burning wastes or calcining raw materials in other steel processes contains a large amount of dioxins. Thus, methods for treating dioxins in incineration ashes have been proposed, but economic and efficient treatment methods have not been established.
소각회내의 다이옥신을 분해하는 방법으로는 소각회를 700 ℃이상 고온처리하는 방법(일본특허공개 평 2-131174), 소각회에 알카리수용액 및 분산제를 가하여 100 내지 350 ℃로 가열하는 방법(일본특허공개 평 6-142637)등이 공지되어 있다.As a method of decomposing dioxin in an incineration ash, a method of treating the incineration ash at a high temperature of 700 ° C. or higher (Japanese Patent Laid-Open No. 2-131174), and adding an aqueous alkali solution and a dispersant to the incineration ash and heating it to 100 to 350 ° C. (Japanese Patent Published Patent Publication No. 6-142637).
상기 종래기술의 문제점을 해결하기 위하여 안출된 것으로서, 본 발명은 제강 슬래그를 다이옥신 분해제로 하여 공정비용이 저렴하면서도 다이옥신의 제거효과가 우수한 소각회내 다이옥신의 제거방법을 제공하는 것을 목적으로 한다.The present invention has been made to solve the problems of the prior art, an object of the present invention is to provide a method for removing dioxins in incineration ash having a low process cost and excellent removal effect of dioxin using steelmaking slag as a dioxin decomposing agent.
상기 목적을 달성하기 위하여 본 발명은 (a) 소각회에 제강 슬래그 및 물을 혼합하여 소각회 및 제강 슬래그 복합슬러리를 제조하고, (b) 상기 소각회 및 제강 슬래그 복합슬러리를 수열처리하는 것을 포함하는 소각회내 다이옥신 분해방법을 제공한다.In order to achieve the above object, the present invention includes (a) mixing incineration ash with steelmaking slag and water to produce incineration ash and steelmaking slag composite slurries, and (b) hydrothermal treatment of the incineration ash and steelmaking slag composite slurries. It provides a dioxin decomposition method in incineration ash.
이하 본 발명을 상세하게 설명한다.Hereinafter, the present invention will be described in detail.
본 발명은 제강 슬래그를 이용한 소각회내 다이옥신 분해방법을 제공한다. 본 발명의 다이옥신 분해방법은 (a) 소각회에 제강 슬래그 및 물을 혼합하여 소각회 및 제강 슬래그 복합슬러리를 제조하고, (b) 상기 소각회 및 슬래그 복합슬러리를 수열처리하는 것을 특징으로 한다.The present invention provides a method for decomposing dioxins in incineration ash using steelmaking slag. Dioxin decomposition method of the present invention is characterized in that (a) mixing incineration ash with steelmaking slag and water to produce incineration ash and steelmaking slag composite slurries, and (b) hydrothermal treatment of the incineration ash and slag composite slurries.
본 발명의 제강 슬래그는 석회석 등을 투입하여 용융철의 순도 등을 조절하는 제강 공정에서 발생하는 무기물로, 철강공정에서 다량 배출되는 부산물이다. 제강 슬래그는 80% 이상이 CaO와 산화철(FeO, Fe2O3, Fe3O4 )로 구성되어 있다.Steelmaking slag of the present invention is an inorganic material generated in the steelmaking process for controlling the purity of molten iron by adding limestone, etc., is a by-product discharged in a large amount in the steel process. More than 80% of steelmaking slag is composed of CaO and iron oxides (FeO, Fe 2 O 3 , Fe 3 O 4 ).
상기 (a) 단계에서 소각회 및 제강 슬래그 복합슬러리는 1 내지 75 중량%의 소각회에 5 내지 95 중량%의 제강 슬래그 및 3 내지 30 중량%의 물을 혼합하여 제조할 수 있다. 이때 제강 슬래그의 함량이 5 중량% 미만으로 투입될 경우, 소각회 및 제강 슬래그 복합슬러리의 pH가 12이하로 낮아져 다이옥신 분해효율이 매우 감소될 수 있으며, 95 중량% 초과하여 투입될 경우 수분부족으로 인하여 슬러리 형성이 원활하지 못하여 제거효율이 낮아지는 문제점이 있다. Incineration ash and steelmaking slag composite slurries in the step (a) may be prepared by mixing 5 to 95% by weight steelmaking slag and 3 to 30% by weight of water in 1 to 75% by weight of incineration ash. At this time, if the content of steelmaking slag is less than 5% by weight, the incineration ash and steelmaking slag composite slurries have a lower pH of 12 or less, and the dioxin decomposition efficiency may be greatly reduced. Due to the slurry formation is not smooth there is a problem that the removal efficiency is lowered.
가장 바람직한 제강 슬래그의 투입함량은 5 내지 75 중량%이다.The most preferable content of steelmaking slag is 5 to 75% by weight.
또한 물을 30 중량%로 초과하여 투입할 경우 다이옥신이 분해된 소각회 및 제강 슬래그 복합슬러리를 처리하기 위하여 많은 에너지가 소모될 수 있으며, 3 중량% 미만으로 투입할 경우 다음 단계에서 실시되는 수열처리가 효율적으로 실시되지 않아 다이옥신 분해효율이 낮아질 수 있다. 바람직한 물의 함량은 10 내지 20 중량%이다. In addition, when the amount of water is added in excess of 30% by weight, a lot of energy may be consumed to treat incinerated ash and slag composite sludge decomposed by dioxin. May not be carried out efficiently so that the dioxin decomposition efficiency may be lowered. Preferred water content is 10 to 20% by weight.
상기 (b) 단계에서는 수열처리하는 것으로, 가열온도는 100 내지 300 ℃가 될 수 있으며, 가열시간은 5 내지 40분간 실시될 수 있다.In the step (b) by hydrothermal treatment, the heating temperature may be 100 to 300 ℃, the heating time may be carried out for 5 to 40 minutes.
본 발명의 소각회내 다이옥신 분해방법은 철강공정에서 배출되는 제강 슬래그를 재활용하여 소각회내의 다이옥신을 저렴한 비용으로 분해시킬 수 있을 뿐만 아니라, 다이옥신이 제거된 소각회 및 제강 슬래그 복합슬러리는 골재 등의 재료로 재활용할 수 있다. Dioxin decomposition method in the incineration ash of the present invention can not only decompose the dioxin in incineration ash at low cost by recycling steelmaking slag discharged from the steel process, incineration ash and steelmaking slag composite sludge from which dioxin is removed, such as aggregate Can be recycled.
이하 본 발명의 실시예를 기재한다. 하기 실시예는 본 발명을 예시하기 위한 것일 뿐 본 발명이 하기 실시예에 한정되는 것은 아니다. Hereinafter, examples of the present invention will be described. The following examples are only for illustrating the present invention and the present invention is not limited to the following examples.
실시예 1-8Example 1-8
소각회 75, 65, 55, 45, 35, 25, 15, 및 5 중량%에 제강 슬래그 분말을 5, 5, 25, 35, 45, 55, 65 및 75 중량%을 각각 혼합한 다음 각각에 물 20 중량%를 혼합하여 실시예 1 내지 실시예 8의 복합슬러리를 제조하였다. 실시예 1 내지 실시예 8의 pH를 측정하여 하기 표 1에 나타내었다. Incineration ashes 75, 65, 55, 45, 35, 25, 15, and 5% by weight of steelmaking slag powder 5, 5, 25, 35, 45, 55, 65 and 75% by weight respectively 20 wt% of the mixed slurry of Examples 1 to 8 was prepared. The pH of Examples 1 to 8 was measured and shown in Table 1 below.
표 1에서, 소각회 5 내지 75 중량%에 제강 슬래그를 5 내지 75% 및 물 20 중량%를 투입할 경우 각각 복합 슬러리의 pH는 12.25 이상인 것으로 확인되었다. 즉, 소각회 및 제강 슬래그 복합슬러리는 pH 12 이상의 고알카리로, 소각회내의 다이옥신이 가열 처리될 경우 용이하게 분해, 제거될 수 있다. In Table 1, when 5 to 75% of steelmaking slag and 20% by weight of water were added to 5 to 75% by weight of incineration ash, the pH of the composite slurry was found to be 12.25 or more. That is, incineration ash and steelmaking slag composite slurries have high alkalinity of pH 12 or more, and can be easily decomposed and removed when the dioxins in the incineration ash are heat treated.
실험예 1: 소각회내의 다이옥신 분해효율 측정Experimental Example 1 Measurement of Dioxin Degradation Efficiency in Incineration Ash
실시예 1 내지 8의 복합슬러리를 동일한 방법으로 제조하고, 200 ℃로 가온하여 10분간 가열하였다. 이후 소각회내의 다이옥신 함유량을 하기의 방법으로 측정하였고, 처리전 소각회의 다이옥신 함유량 7600 pg TEG/g을 기준으로 하여 분해효율을 환산하였다. The composite slurry of Examples 1 to 8 was prepared in the same manner, and heated to 200 ° C. and heated for 10 minutes. Then, the dioxin content in the incineration ash was measured by the following method, and the decomposition efficiency was converted based on the dioxin content of 7600 pg TEG / g before the incineration ash.
다이옥신 함량 측정방법How to measure dioxin content
복합슬러리는 미국 EPA 1613방법에 따라 전처리(clean-up)하였고, 얻어진 산물을 다음의 조건에 따라 고성능 기체크로마토그래피 및 고해상도 질량분석기로 분석하였다.The composite slurries were clean-up according to the US EPA 1613 method, and the obtained products were analyzed by high performance gas chromatography and high resolution mass spectrometry under the following conditions.
- 기체크로마토그레프용 컬럼 : 모세관 컬럼(SP-2331, 60m x 0.32mm, 0.2um, 미국 Supelco사)-Column for gas chromatograph: Capillary column (SP-2331, 60m x 0.32mm, 0.2um, Supelco, USA)
- 컬럼 승온 조건 : 120 ℃에서 3분 유지하고, 220 ℃까지 분당 20 ℃로 승온한 후 5분간 유지하고, 다시 260 ℃까지 분당 2 ℃로 승온하고 12분간 유지-Column heating condition: Maintained for 3 minutes at 120 ℃, heated to 20 ℃ per minute to 220 ℃ and then maintained for 5 minutes, and again heated to 2 ℃ per minute to 260 ℃ and held for 12 minutes
- 고분해능 질량 분석기(Autospec Ultima, VG, 영국) 조건 :High resolution mass spectrometer (Autospec Ultima, VG, UK)
이온화실 온도 : 260 ℃, 트랩 전류 : 500 ㎂, 전자 충격 에너지 : 32 eV, 해상도(resolution) : 10,000 Ionization chamber temperature: 260 ℃, trap current: 500 ㎂, electron impact energy: 32 eV, resolution: 10,000
다이옥신의 분해효율은 하기 표 2에 나타내었다. The decomposition efficiency of dioxins is shown in Table 2 below.
표 2에서, 실시예 1 내지 8의 복합슬러리 모두 약 99 %의 다이옥신 분해효율을 나타내었다. In Table 2, all of the composite slurries of Examples 1 to 8 exhibited a dioxin decomposition efficiency of about 99%.
실험예 2: 소각회내의 다이옥신 분해효율 측정Experimental Example 2: Measurement of Dioxin Degradation Efficiency in Incineration Ash
실시예 5와 동일한 조성으로 복합슬러리를 제조하였고, 이때 가열온도를 100 내지 300 ℃로 변화시키면서 소각회내의 다이옥신 분해효율을 측정하여 하기 표 3에 나타내었다. A composite slurry was prepared in the same composition as in Example 5, where the dioxin decomposition efficiency in the incineration ash was measured while changing the heating temperature to 100 to 300 ° C., and is shown in Table 3 below.
표 3에서, 다이옥신의 분해효율은 98.5 내지 100 %로 확인되었으며, 특히 수온이 높음에 따라 증가하는 것으로 확인되었다.In Table 3, the decomposition efficiency of dioxins was found to be 98.5 to 100%, especially as the water temperature was increased.
실험예 3: 소각회내의 다이옥신 분해효율 측정Experimental Example 3: Measurement of Dioxin Degradation Efficiency in Incineration Ash
실시예 5와 동일한 조성으로 복합슬러리를 제조하였고, 이때 반응시간을 2 내지 40분으로 변화시키면서 시간별 다이옥신 분해효율을 측정하였다. 또한 가열온도는 200 ℃이었다. A composite slurry was prepared in the same composition as in Example 5, wherein the dioxin decomposition efficiency was measured by changing the reaction time to 2 to 40 minutes. Moreover, heating temperature was 200 degreeC.
표 4에서, 200 ℃로 가열하였을 때 다이옥신의 분해효율은 반응시간 2분 이상에서 98.1% 이상으로 확인되었으며, 특히 반응시간 5분 내지 30분에서 다이옥신 분해효율이 99.3 내지 100 %로 매우 높게 측정되었다. In Table 4, the decomposition efficiency of dioxins when heated to 200 ℃ was confirmed to be 98.1% or more at a reaction time of 2 minutes or more, in particular, the dioxins decomposition efficiency was measured very high (99.3 to 100%) at reaction time 5 minutes to 30 minutes. .
상기에 언급한 바와 같이, 본 발명의 소각회내 다이옥신 분해방법은 제강 슬래그를 다이옥신 분해제로 사용하여 공정비용이 저렴하면서도 다이옥신의 제거효과가 우수하다. 또한 다이옥신이 제거된 소각회 및 제강 슬래그 복합슬러리는 골재 등의 재료로 재활용할 수 있다. As mentioned above, the method for decomposing dioxins in incineration ash of the present invention uses steelmaking slag as a dioxin decomposing agent, which is low in process cost and excellent in removing dioxins. In addition, incineration ash and steelmaking slag composite sludge from which dioxins have been removed can be recycled to materials such as aggregates.
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| KR20020051376A (en) * | 2000-12-22 | 2002-06-29 | 신현준 | Dioxins analyzing method by using blast furnace slag |
| KR20030010071A (en) * | 2001-07-25 | 2003-02-05 | 주식회사 얼라이브텍 | Eliminator For Removing Harmful Gases In Flue Gases And Method For Removing The Sames Thereby |
| KR20030018811A (en) * | 2001-08-31 | 2003-03-06 | 재단법인 포항산업과학연구원 | Method and Device for high temperature incineration and thermal decomposition of wastes |
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| JP2000354841A (en) * | 1999-06-15 | 2000-12-26 | Japan Atom Energy Res Inst | Solidification of incineration ash |
| KR20020051376A (en) * | 2000-12-22 | 2002-06-29 | 신현준 | Dioxins analyzing method by using blast furnace slag |
| KR20030010071A (en) * | 2001-07-25 | 2003-02-05 | 주식회사 얼라이브텍 | Eliminator For Removing Harmful Gases In Flue Gases And Method For Removing The Sames Thereby |
| KR20030018811A (en) * | 2001-08-31 | 2003-03-06 | 재단법인 포항산업과학연구원 | Method and Device for high temperature incineration and thermal decomposition of wastes |
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