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A review of dioxin-related substances during municipal solid waste incineration
被引:119
作者:
Zhou, Hui
[1
]
Meng, Aihong
[1
]
Long, Yanqiu
[1
]
Li, Qinghai
[1
]
Zhang, Yanguo
[1
]
机构:
[1] Tsinghua Univ, Dept Thermal Engn, Minist Educ, Key Lab Thermal Sci & Power Engn, Beijing 100084, Peoples R China
来源:
关键词:
Waste;
Incineration;
PCDD/F;
Precursor;
Indicator;
DIBENZO-P-DIOXINS;
DE-NOVO SYNTHESIS;
POLYCYCLIC AROMATIC-HYDROCARBONS;
GAS-PHASE FORMATION;
CONTROLLING PCDD/F PRODUCTION;
MODEL FLY-ASH;
MSW INCINERATION;
LABORATORY-SCALE;
FLUE-GAS;
POLYCHLORINATED DIBENZOFURANS;
D O I:
10.1016/j.wasman.2014.11.011
中图分类号:
X [环境科学、安全科学];
学科分类号:
08 ;
0830 ;
摘要:
Polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) are among the most toxic chemicals and the main restriction on municipal solid waste incineration. To exert more effective control over the formation of dioxin homologues during municipal solid waste incineration, it is significant to investigate dioxin-related compounds. Despite the numerous studies about PCDD/Fs, a unified understanding regarding many problems has yet to be reached because the homologues of PCDD/Fs are excessive, the measurement of PCDD/Fs is difficult, and the formation mechanisms of PCDD/Fs are complicated. Firstly, this paper briefly introduces the different formation mechanisms of PCDD/Fs, including high temperature homogeneous reaction PCDD/Fs formation and low temperature heterogeneous reaction PCDD/Fs formation. Then the sources of PCDD/Fs including precursors (chlorophenols and polycyclic aromatic hydrocarbons) and residual carbon are summarized. In particular, this paper analyzes the substances that influence PCDD/Fs formation and their impact mechanisms, including different categories of chlorine (Cl-2, HCI and chloride in fly ash), O-2, copper, sulfur, water, and nitrogen compounds (ammonia and urea). Due to the high cost and complexity of PCDD/Fs measurement, PCDD/Fs indicators, especially chlorobenzenes and polycyclic aromatic hydrocarbons, are summarized, to find an effective surrogate for quick, convenient and real-time monitoring of PCDD/Fs. Finally, according to the results of the current study, recommendations for further research and industrial applications prospects are proposed. (C) 2014 Elsevier Ltd. All rights reserved.
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页码:106 / 118
页数:13
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