烧结厂烟尘和静电除尘器灰尘中二噁英的分布特征

闻胜; 惠阳; 张晓岭; 徐盈; 金士威

环境化学

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闻胜, 惠阳, 张晓岭, 徐盈, 金士威. 烧结厂烟尘和静电除尘器灰尘中二噁英的分布特征[J]. 环境化学, 2007, 26(6): 823-827.

引用本文:

闻胜, 惠阳, 张晓岭, 徐盈, 金士威. 烧结厂烟尘和静电除尘器灰尘中二噁英的分布特征[J]. 环境化学, 2007, 26(6): 823-827.

WEN Sheng, HUI Yang, ZHANG Xiao-ling , XU Ying, JIN Shi-wei. LEVELS AND CHARACTERISTICS OF POLYCHLORINATED DIBENZO-P-DIOXIN AND POLYCHLORINATED DIBENZOFURAN IN FLY ASH AND ESP DUSTS FROM A CHINESE SINTER PLANT[J]. Environmental Chemistry, 2007, 26(6): 823-827.

Citation:

烧结厂烟尘和静电除尘器灰尘中二噁英的分布特征

1.
中国科学院水生生物研究所, 淡水生态与生物技术国家重点实验室, 武汉, 430072;
2.
中国科学院研究生院, 北京, 100049;
3.
武汉工程大学, 武汉, 430073
基金项目:
科技部973基础研究项目(2003CB415005)

武汉市科技局晨光计划(200750731259).

LEVELS AND CHARACTERISTICS OF POLYCHLORINATED DIBENZO-P-DIOXIN AND POLYCHLORINATED DIBENZOFURAN IN FLY ASH AND ESP DUSTS FROM A CHINESE SINTER PLANT

1.
State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China;
2.
Graduate University of Chinese Academy of Science, Beijing, 100049, China;
3.
Wuhan Institute of Technology, Wuhan, 430073, China
Fund Project:

摘要: 研究了烧结厂烟道烟尘和静电除尘器灰尘中二噁英的浓度和分布特征.结果显示,烧结台车机头烟道烟尘和机尾烟道烟尘中二噁英的总含量分别为867.49±215.41和170.35±51.12pg·Nm-3,毒性当量分别36.53±4.47和9.13±2.40pgWHO-TEQ·Nm-3;机头静电除尘器灰尘和机尾静电除尘器灰尘的总含量分别为2423.59±100.01和157.29±36.83pg·g-1dw,毒性当量分别71.67±0.62和7.50±1.08pgWHO-TEQ·g-1dw.烧结中二噁英的分布以PCDFs为主,而且PCDFs各同系物的浓度与Cl原子取代数目呈负相关(r2=0.98).在WHO-TEQs中2,3,4,7,8-PeCDF的贡献最大,占总TEQ值的45%左右.
- 二噁英 /
- 烟尘 /
- 灰尘 /
- 指纹特征
Abstract: The dusts from the former and later electrostatic precipitator(ESP)and the fly ash from the former and later chimney were collected in a Chinese sinter plant. The samples were analyzed for PCDD/Fs by HRGC/HRMS-MID according to US EPA 1613B method and were calculated by WHO-TEFs. The total concentrations of PCDD/Fs found in the dusts from the former and the later ESP were 2423.59�100.01 pg·g-1 and 157.29�36.83 pg·g-1 with WHO-TEQ values of 71.67�0.62 pg·g-1 and 7.50�1.08 pg·g-1 respectively, meanwhile in the former and the later fly ash the values were 867.492�215.41 and 170.35�51.12 pg·Nm-3, 36.53�4.47 and 9.13�2.40 pg TEQNm-3,respectively. Moreover, it was found that PCDFs were the dominant congeners, the concentration of which showed a negative correlation with the number of substituted Cl. Among PCDD/Fs congeners, 2,3,4,7,8-pentachlorodibenzofuran(PeCDF)was found to constitute about 45% of the total WHO-TEQ.The results showed the drying area in sinter belt was suggested to be the main area of dioxins production. Although the concentration of PCDD/Fs in sintering was lower than that in municipal solid waste incinerator, the emission of dioxins from sintering should be gained more attentions due to the huge emission of exhaust gas.
- PCDD/Fs /
- fly ash /
- ESP dusts /

[1]

Quass U,Fermann M,Br(O)ker G,European Dioxin Emission Inventory-Stage Ⅱ,Report prepared by the North Rhine Westphalia State Environment Agency on Behalf of the European Commission,2000
[2] USEPA,The Inventory of Sources of Dioxins in the United States.External Review Draft.EPA/600/p-98/002Aa,1998
[3] Everaert K,Baeyens J,The Formation and Emission of Dioxins in Large Scale Thermal Processes.Chemosphere,2002,46(3):439-448
[4] Xhrouet C Edwin De Pauw,Forsation of PCDD/Fs in the Sintering Process:Role of the Grid--Cr²O3 catalyst in the de Novo Synthesis.Chemosphere.,2005,59 (10):1399-1406
[5] Vogg H,Metzger M,Stieglitz L,Recent Findings on the Formation and Decomposition of PCDD/PCDF in Municipal Solid Waste Incineration.Waste Management & Research.1987,5 (3):285-294
[6] Aries E,Anderson D R,Ordsmith N et al.,Development and Validation of a Method for Analysis of" dioxin-like" PCBs in Environmental Samples from the Steel Industry.Chemosphere,2004,54:23-31
[7] Wang T,Anderson D R,Thompson D et al.,Studies into the Formation of Dioxins in the Sintering Process Used in the Iron and Steel Industry.1.Characterisation of Isomer Profiles in Particulate and Gaseous Emissions.Chemosphere,2002,51 (7):585-594
[8] Xhrouet C,Edwin de Pauw,Formation of PCDD/Fs in the Sintering Process:Influence of the Raw Materials.Environ.Sci.Technol.,2004,38:4222-4226
[9] Raghunathan K,Gullett B K,Role of Sulfur in Reducing PCDD and PCDF Formation.Environ.Sci.Technol.,1996,30 (6):1827-1834
[10] Dickson L C,Lenoir D,Hutzinge O et al.,Inhibition of Chlorinated Dibenzo-p-Dioxin Formation on Municipal Incinerator Fly Ash by Using Catalyst Inhibitors.Chemosphere.1989,19 (8-9):1435-1445
[11] Cieplik M K,Carbonell J P,Munoz C et al.,On Dioxin Formation in Iron Ore Sintering.Environ.Sci.Technol.,2003,37:3223-3331LEVELS AND CHARACTERISTICS OF POLYCHLORINATED

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闻胜, 惠阳, 张晓岭, 徐盈, 金士威. 烧结厂烟尘和静电除尘器灰尘中二噁英的分布特征[J]. 环境化学, 2007, 26(6): 823-827.

引用本文:

闻胜, 惠阳, 张晓岭, 徐盈, 金士威. 烧结厂烟尘和静电除尘器灰尘中二噁英的分布特征[J]. 环境化学, 2007, 26(6): 823-827.

Citation:

烧结厂烟尘和静电除尘器灰尘中二噁英的分布特征

1. 中国科学院水生生物研究所, 淡水生态与生物技术国家重点实验室, 武汉, 430072;
2. 中国科学院研究生院, 北京, 100049;
3. 武汉工程大学, 武汉, 430073

收稿日期: 2006-12-31

基金项目:

科技部973基础研究项目(2003CB415005)

武汉市科技局晨光计划(200750731259).

关键词:

二噁英 /
烟尘 /
灰尘 /
指纹特征

摘要: 研究了烧结厂烟道烟尘和静电除尘器灰尘中二噁英的浓度和分布特征.结果显示,烧结台车机头烟道烟尘和机尾烟道烟尘中二噁英的总含量分别为867.49±215.41和170.35±51.12pg·Nm-3,毒性当量分别36.53±4.47和9.13±2.40pgWHO-TEQ·Nm-3;机头静电除尘器灰尘和机尾静电除尘器灰尘的总含量分别为2423.59±100.01和157.29±36.83pg·g-1dw,毒性当量分别71.67±0.62和7.50±1.08pgWHO-TEQ·g-1dw.烧结中二噁英的分布以PCDFs为主,而且PCDFs各同系物的浓度与Cl原子取代数目呈负相关(r2=0.98).在WHO-TEQs中2,3,4,7,8-PeCDF的贡献最大,占总TEQ值的45%左右.

English Abstract

LEVELS AND CHARACTERISTICS OF POLYCHLORINATED DIBENZO-P-DIOXIN AND POLYCHLORINATED DIBENZOFURAN IN FLY ASH AND ESP DUSTS FROM A CHINESE SINTER PLANT

1. State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China;
2. Graduate University of Chinese Academy of Science, Beijing, 100049, China;
3. Wuhan Institute of Technology, Wuhan, 430073, China

Received Date: 2006-12-31

Fund Project:

Keywords:

PCDD/Fs /
fly ash /
ESP dusts /

Abstract: The dusts from the former and later electrostatic precipitator(ESP)and the fly ash from the former and later chimney were collected in a Chinese sinter plant. The samples were analyzed for PCDD/Fs by HRGC/HRMS-MID according to US EPA 1613B method and were calculated by WHO-TEFs. The total concentrations of PCDD/Fs found in the dusts from the former and the later ESP were 2423.59�100.01 pg·g-1 and 157.29�36.83 pg·g-1 with WHO-TEQ values of 71.67�0.62 pg·g-1 and 7.50�1.08 pg·g-1 respectively, meanwhile in the former and the later fly ash the values were 867.492�215.41 and 170.35�51.12 pg·Nm-3, 36.53�4.47 and 9.13�2.40 pg TEQNm-3,respectively. Moreover, it was found that PCDFs were the dominant congeners, the concentration of which showed a negative correlation with the number of substituted Cl. Among PCDD/Fs congeners, 2,3,4,7,8-pentachlorodibenzofuran(PeCDF)was found to constitute about 45% of the total WHO-TEQ.The results showed the drying area in sinter belt was suggested to be the main area of dioxins production. Although the concentration of PCDD/Fs in sintering was lower than that in municipal solid waste incinerator, the emission of dioxins from sintering should be gained more attentions due to the huge emission of exhaust gas.

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烧结厂烟尘和静电除尘器灰尘中二噁英的分布特征

LEVELS AND CHARACTERISTICS OF POLYCHLORINATED DIBENZO-P-DIOXIN AND POLYCHLORINATED DIBENZOFURAN IN FLY ASH AND ESP DUSTS FROM A CHINESE SINTER PLANT

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烧结厂烟尘和静电除尘器灰尘中二噁英的分布特征

English Abstract

LEVELS AND CHARACTERISTICS OF POLYCHLORINATED DIBENZO-P-DIOXIN AND POLYCHLORINATED DIBENZOFURAN IN FLY ASH AND ESP DUSTS FROM A CHINESE SINTER PLANT

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