INFLUENCE OF LINEAR ALKYLBENZENE SULFONATE (LAS) AS ORGANIC COSOLVENT ON LEACHING BEHAVIOR OF PCDD/FS FROM FLY-ASH AND SOIL

被引：27

作者：

SCHRAMM, KW ^{[1
]}

WU, WZ ^{[1
]}

HENKELMANN, B ^{[1
]}

MERK, M ^{[1
]}

XU, Y ^{[1
]}

ZHANG, YY ^{[1
]}

KETTRUP, A ^{[1
]}

机构：

[1] INST HYDROBIOL,STATE KEY LAB FRESHWATER ECOL & BIOTECHNOL,WUHAN 430072,PEOPLES R CHINA

来源：

CHEMOSPHERE | 1995年 / 31卷 / 06期

关键词：

PCDD/FS; LEACHING; LINEAR ALKYLBENZENE SULFONATE (LAS); SOIL; FLY ASH;

D O I：

10.1016/0045-6535(95)00197-G

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The leaching of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) was measured in soil and standard fly ash column eluted with pure water and linear alkylbenzene sulfonate (LAS)- water. The data obtained were used to evaluate the leachability of PCDD/Fs from waste dump like incineration residual slag and fly ash deposition. The leaching rate was shown to be increased significantly by using LAS water. The leachate contents of PCDD/Fs were above their known water solubility. Concentration of PCDD/Fs in the leachates as well as the relative leaching (calculated on the fly ash content) increased with increasing chlorinating degree and decreasing water solubility. LAS above the critical micelle concentration (CMC) probably enhances PCDD/Fs solubility.

引用

页码：3445 / 3453

页数：9

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