DICP OpenIR
Spatial variation of PCDD/F and PCB emissions and their composition profiles in stack flue gas from the typical cement plants in China
Zou, Lili1,2; Ni, Yuwen1; Gao, Yuan1; Tang, Fengmei1; Jin, Jing1; Chen, Jiping1
KeywordCement Kiln Dioxin Polychlorinated Biphenyls Emission Factor Profiles
Source PublicationCHEMOSPHERE
2018-03-01
ISSN0045-6535
DOI10.1016/j.chemosphere.2017.12.114
Volume195Pages:491-497
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
WOS SubjectEnvironmental Sciences
WOS Research AreaEnvironmental Sciences & Ecology
WOS KeywordDIBENZO-P-DIOXINS ; MASS-BALANCE ; FURANS PCDD/FS ; FLY-ASH ; KILN ; INVENTORY ; FUEL ; METALS ; TAIWAN ; CBZS
AbstractCement production processes are important sources of unintentionally produced persistent organic pollutants (UP-POPs), such as polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), and polychlorinated biphenyls (PCBs). The emissions of PCDD/Fs and PCBs in the stack flue gases from eight typical cement plants in China were investigated in this study, including one wet process rotary kiln, three dry process rotary kilns and four vertical shaft kilns. PCBs exhibited relatively higher mass concentrations with the dioxin-like (dl) and indicator PCBs of 0.14-17.36 and 0.42-12.90 ng/Nm(3), respectively. However, PCDD/Fs contributed most to the total toxic equivalent concentrations, with the proportions exceeding 90%. The international toxicity equivalency (I-TEQ) concentrations of PCDD/Fs varied greatly from 0.01 to 0.46 ng I-TEQ/Nm(3) in stack gases, two of which exceeded the exhaust gas concentration limit of 0.1 ng I-TEQ/Nm(3) established by the European Union Directive. In weight units, 1,2,3,4,6,7,8-HpCDF was the most abundant congener in the stack gases from various types of cement kilns, with the factions of 17.0-27.8%. TCDFs and PeCDFs were the first two most abundant homologue groups. 2,3,4,7,8-PeCDF was the largest contributor to the total I-TEQ. The emission factors of PCDD/Fs and PCBs in the eight cement kilns were estimated to be 0.01-1.35 mu g I-TEQ/t clinker and 8.20 x 10(-4)-8.23 x 10(-2) mu g World Health Organization TEQ (W-TEQ)/t clinker, respectively. No obvious differences of the PCDD/F and PCB emission factors were found among the varied cement production technologies. (C) 2017 Published by Elsevier Ltd.
Language英语
WOS IDWOS:000424172400050
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/168777
Collection中国科学院大连化学物理研究所
Corresponding AuthorGao, Yuan
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, CAS Key Lab Separat Sci Analyt Chem, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zou, Lili,Ni, Yuwen,Gao, Yuan,et al. Spatial variation of PCDD/F and PCB emissions and their composition profiles in stack flue gas from the typical cement plants in China[J]. CHEMOSPHERE,2018,195:491-497.
APA Zou, Lili,Ni, Yuwen,Gao, Yuan,Tang, Fengmei,Jin, Jing,&Chen, Jiping.(2018).Spatial variation of PCDD/F and PCB emissions and their composition profiles in stack flue gas from the typical cement plants in China.CHEMOSPHERE,195,491-497.
MLA Zou, Lili,et al."Spatial variation of PCDD/F and PCB emissions and their composition profiles in stack flue gas from the typical cement plants in China".CHEMOSPHERE 195(2018):491-497.
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