Effect of moisture content on microwave-assisted extraction of PCBs and chlorobenzenes

被引：1

作者：

Sun, Yifei ^{[1
]}

Takaoka, Masaki ^{[2
]}

Zhang, Yadi ^{[3
]}

Wang, Wei ^{[4
]}

机构：

[1] Beihang Univ, Sch Space & Environm, Beijing 100191, Peoples R China

[2] Kyoto Univ, Grad Sch Engn, Dept Environm Engn, Nishikyo Ku, Kyoto 6158540, Japan

[3] Beihang Univ, Sch Chem & Environm, Beijing 100191, Peoples R China

[4] Tsinghua Univ, Sch Environm, Beijing 100084, Peoples R China

来源：

INTERNATIONAL JOURNAL OF ENVIRONMENT AND POLLUTION | 2017年 / 61卷 / 02期

关键词：

microwave-assisted extraction; MAE; moisture content; extraction efficiency; polychlorinated biphenyls; PCBs; chlorobenzenes; CBzs; fly ash; sludge; municipal solid waste incineration; MSWI; POLYCYCLIC AROMATIC-HYDROCARBONS; SUPERCRITICAL-FLUID EXTRACTION; SOLVENT-EXTRACTION; GAS-CHROMATOGRAPHY; DIOXIN FORMATION; SOXHLET; OPTIMIZATION; SONICATION; SEDIMENTS; WATER;

D O I：

10.1504/IJEP.2017.085661

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Polychlorinated biphenyls (PCBs) and chlorobenzenes (CBzs) generated during municipal solid waste incineration (MSWI) pose a great threat to both human health and the environment. In the present study, an application of microwave-assisted extraction (MAE) is introduced to extract PCBs and CBzs from actual fly ash and sludge. The effect of moisture content on the extraction efficiency of MAE has been investigated and compared with that of conventional soxhlet extraction (SE). Lower moisture content leads to higher extraction efficiency. When adding Na2SO4 to absorb the residual moisture from sludge, the recorded concentration of PCBs and CBzs reaches its maximum value. Compared to SE, MAE shows unique advantages: high extraction efficiency for chlorinated homologues, shorter extraction time and less solvent volume spent.

引用

页码：148 / 165

页数：18

共 31 条

[1] [Anonymous], ORGANOHALOGEN COMPD
[2] EXTRACTION OF POLYCYCLIC AROMATIC-HYDROCARBONS FROM HIGHLY CONTAMINATED SOILS USING MICROWAVE-ENERGY
BARNABAS, IJ
DEAN, JR
FOWLIS, IA
OWEN, SP
[J]. ANALYST, 1995, 120 (07) : 1897 - 1904
[3] SUPERCRITICAL-FLUID EXTRACTION IN ENVIRONMENTAL-ANALYSIS
BOWADT, S
HAWTHORNE, SB
[J]. JOURNAL OF CHROMATOGRAPHY A, 1995, 703 (1-2) : 549 - 571
[4] Chandler A.J., 1997, MUNICIPAL SOLID WAST
[5] Microwave-assisted solvent extraction of air particulates for the determination of PAHs
Chee, KK
Wong, MK
Lee, HK
[J]. ENVIRONMENTAL MONITORING AND ASSESSMENT, 1997, 44 (1-3) : 391 - 403
[6] Optimization of microwave-assisted solvent extraction of polycyclic aromatic hydrocarbons in marine sediments using a microwave extraction system with high-performance liquid chromatography fluorescence detection and gas chromatography mass spectrometry
Chee, KK
Wong, MK
Lee, HK
[J]. JOURNAL OF CHROMATOGRAPHY A, 1996, 723 (02) : 259 - 271
[7] Comparison of microwave-assisted extraction and Soxhlet extraction for phenols in soil samples using experimental designs
Egizabal, A
Zuloaga, O
Etxebarria, N
Fernández, LA
Madariaga, JM
[J]. ANALYST, 1998, 123 (08) : 1679 - 1684
[8] Eskilsson CS, 2000, J CHROMATOGR A, V902, P227
[9] Microwave-assisted extraction of felodipine tablets
Eskilsson, CS
Björklund, E
Mathiasson, L
Karlsson, L
Torstensson, A
[J]. JOURNAL OF CHROMATOGRAPHY A, 1999, 840 (01) : 59 - 70
[10] Methods for selective determination of persistent organochlorine pesticide residues in water and sediments by capillary gas chromatography and electron-capture detection
Fatoki, OS
Awofolu, RO
[J]. JOURNAL OF CHROMATOGRAPHY A, 2003, 983 (1-2) : 225 - 236

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