EFFECTIVE SAMPLING SYSTEM FOR POLYCHLORINATED DIBENZO-P-DIOXINS AND POLYCHLORINATED DIBENZOFURANS IN FLUE-GAS FROM MUNICIPAL SOLID INCINERATORS

被引:7
|
作者
TAKESHITA, R
AKIMOTO, Y
NITO, S
机构
[1] School of Pharmaceutical Sciences, Toho University, Funabashi-shi, Chiba 274, 2-2-1, Miyama
关键词
D O I
10.1021/es00005a008
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Dodecyl sulfuric acid-binding DEAE-Sephadex (DS-Sephadex) was developed as the adsorbent to trap polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/F) in flue gas. Using a DS-Sephadex column, an improved sampling system for PCDD/F in flue gas from municipal solid waste incinerators (MSWls) was investigated. The system was composed of a probe for drawing flue gas, a filter for collecting dust, impingers for removing acidic substances in flue gas which would decrease trapping activity of the DS-Sephadex, a DS-Sephadex column for trapping PCDD/F, and a vacuum system. As several fundamental experiments for the application of DS-Sephadex to the adsorbent column, uptake efficiency of PCDD/F by the DS-Sephadex column, effective elution of PCDD/F from the column, retention of surrogate PCDD/F on the column during sampling flue gas from a MSWI, distribution of PCD D/F in the column after the sampling, etc. were investigated in detail. In the sampling of flue gas, PCDD/F in solid and gaseous forms were effectively trapped onto the DS-Sephadex column without breaking through during sampling. Thus, a simple and efficient system for sampling PCDD/F in flue gas was developed without requirement of a backup system.
引用
收藏
页码:1186 / 1194
页数:9
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