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Emission characteristics of PCDD/Fs in stack gas from municipal solid waste incineration plants in Northern China.
Chemosphere. 2018 Jun; 200:23-29.C

Abstract

Emission characteristics including congener's profile, gas emissions and toxic equivalent concentration (TEQ) indicators of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in 57 stack gas samples from 6 municipal solid waste incinerators (MSWIs) in Northern China were investigated by gas chromatography-high resolution mass spectrometry (HRGC-HRMS). Additionally, PCDD/Fs formation mechanisms from the MSWIs were briefly discussed. Results revealed that the concentrations and equivalent concentrations of PCDD/Fs emissions in stack gas from 6 MSWIs were in the range of 0.11-2.53 ng Nm-3 and 0.007-0.059 ng TEQ Nm-3, respectively. The emission factors of PCDD/Fs from 6 MSWIs varied from 0.027 to 0.225 μg I-TEQ tonne-1, with a mean value of 0.17 μg I-TEQ tonne-1 waste, which was estimated to an annual emission of 234.96 mg I-TEQ of PCDD/Fs from 6 MSWIs to the atmosphere. O8CDD, O8CDF and 1,2,3,4,6,7,8-H7CDD were the indicatory compounds of PCDD/Fs to apportion the sources of PCDD/Fs in environmental medium especially in ambient environment of MSWIs. 1,2,3,7,8,9-H6CDF and 1,2,3,4,7,8-H6CDF can be used as TEQ indicators for monitoring PCDD/Fs emission. Based on the positive matrix factorization (PMF) model, eight factors were extracted by the PMF analysis. Formation of low-chlorinated PCDDs (1,2,3,7,8-P5CDD, 1,2,3,4,7,8-H6CDD, 1,2,3,6,7,8-H6CDD and 1,2,3,7,8,9-H6CDD) possessed strong correlation, and the chlorophenols maybe the important precursors of low-chlorinated PCDDs, which were generated within the low chlorinated content. Penta- and hexa-PCDFs formation in stack gas from MSWI may block catalytic sites for PCDFs formation from carbon. Meanwhile, possible formation mechanisms of high-chlorinated PCDDs (hepta- and octa-PCDDs) and high-chlorinated PCDFs (hepta- and octa-PCDFs) were respectively dependent.

Authors+Show Affiliations

South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China.South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China; School of Environment and Energy, South China University of Technology, Guangzhou 510006, China.South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China. Electronic address: jiaweilu@hust.edu.cn.South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China. Electronic address: haijingzg@163.com.South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China.South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China.South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

29471165

Citation

Zhu, Feng, et al. "Emission Characteristics of PCDD/Fs in Stack Gas From Municipal Solid Waste Incineration Plants in Northern China." Chemosphere, vol. 200, 2018, pp. 23-29.
Zhu F, Li X, Lu JW, et al. Emission characteristics of PCDD/Fs in stack gas from municipal solid waste incineration plants in Northern China. Chemosphere. 2018;200:23-29.
Zhu, F., Li, X., Lu, J. W., Hai, J., Zhang, J., Xie, B., & Hong, C. (2018). Emission characteristics of PCDD/Fs in stack gas from municipal solid waste incineration plants in Northern China. Chemosphere, 200, 23-29. https://doi.org/10.1016/j.chemosphere.2018.02.092
Zhu F, et al. Emission Characteristics of PCDD/Fs in Stack Gas From Municipal Solid Waste Incineration Plants in Northern China. Chemosphere. 2018;200:23-29. PubMed PMID: 29471165.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Emission characteristics of PCDD/Fs in stack gas from municipal solid waste incineration plants in Northern China. AU - Zhu,Feng, AU - Li,Xiaofei, AU - Lu,Jia-Wei, AU - Hai,Jing, AU - Zhang,Jieru, AU - Xie,Bing, AU - Hong,Chengyang, Y1 - 2018/02/16/ PY - 2018/01/02/received PY - 2018/02/15/revised PY - 2018/02/15/accepted PY - 2018/2/23/pubmed PY - 2018/6/22/medline PY - 2018/2/23/entrez KW - Emission characteristics KW - Gas chromatography-high resolution mass spectrometry KW - Municipal solid waste incinerators KW - PCDD/Fs KW - Positive matrix factorization KW - Stack gas SP - 23 EP - 29 JF - Chemosphere JO - Chemosphere VL - 200 N2 - Emission characteristics including congener's profile, gas emissions and toxic equivalent concentration (TEQ) indicators of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in 57 stack gas samples from 6 municipal solid waste incinerators (MSWIs) in Northern China were investigated by gas chromatography-high resolution mass spectrometry (HRGC-HRMS). Additionally, PCDD/Fs formation mechanisms from the MSWIs were briefly discussed. Results revealed that the concentrations and equivalent concentrations of PCDD/Fs emissions in stack gas from 6 MSWIs were in the range of 0.11-2.53 ng Nm-3 and 0.007-0.059 ng TEQ Nm-3, respectively. The emission factors of PCDD/Fs from 6 MSWIs varied from 0.027 to 0.225 μg I-TEQ tonne-1, with a mean value of 0.17 μg I-TEQ tonne-1 waste, which was estimated to an annual emission of 234.96 mg I-TEQ of PCDD/Fs from 6 MSWIs to the atmosphere. O8CDD, O8CDF and 1,2,3,4,6,7,8-H7CDD were the indicatory compounds of PCDD/Fs to apportion the sources of PCDD/Fs in environmental medium especially in ambient environment of MSWIs. 1,2,3,7,8,9-H6CDF and 1,2,3,4,7,8-H6CDF can be used as TEQ indicators for monitoring PCDD/Fs emission. Based on the positive matrix factorization (PMF) model, eight factors were extracted by the PMF analysis. Formation of low-chlorinated PCDDs (1,2,3,7,8-P5CDD, 1,2,3,4,7,8-H6CDD, 1,2,3,6,7,8-H6CDD and 1,2,3,7,8,9-H6CDD) possessed strong correlation, and the chlorophenols maybe the important precursors of low-chlorinated PCDDs, which were generated within the low chlorinated content. Penta- and hexa-PCDFs formation in stack gas from MSWI may block catalytic sites for PCDFs formation from carbon. Meanwhile, possible formation mechanisms of high-chlorinated PCDDs (hepta- and octa-PCDDs) and high-chlorinated PCDFs (hepta- and octa-PCDFs) were respectively dependent. SN - 1879-1298 UR - https://www.unboundmedicine.com/medline/citation/29471165/Emission_characteristics_of_PCDD/Fs_in_stack_gas_from_municipal_solid_waste_incineration_plants_in_Northern_China_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(18)30301-1 DB - PRIME DP - Unbound Medicine ER -