RADIOLYTIC DEGRADATION OF DIOXIN ON SOIL - OPTIMAL CONDITIONS AND ECONOMIC-CONSIDERATIONS

被引：8

作者：

HILARIDES, RJ

GRAY, KA

GUZZETTA, J

CORTELLUCCI, N

SOMMER, C

机构：

[1] Department of Civil Engineering and Geological Sciences, University of Notre Dame, Notre Dame, Indiana

[2] Occidental Chemical Corporation, Technology Center, Grand Island, New York

来源：

ENVIRONMENTAL PROGRESS | 1994年 / 13卷 / 04期

关键词：

D O I：

10.1002/ep.670130415

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This paper reports results of 2, 3, 7, 8-tetrachlorodibenzo-p-dioxin (TCDD) destruction on artificially contaminated soil using Cobalt-60 (Co-60) gamma radiation. A standard soil (EPA SSM-91) was artificially contaminated with 2, 3, 7, 8-TCDD to 100 ppb. In the presence of 25 percent water, 2 percent surfactant (RA-40 (TM)), and high irradiation dose (800 KGy), greater than 90 percent TCDD destruction was achieved resulting in a final TCDD concentration of less than 7 ppb. This paper discusses some of the factors unique to soil contamination that will influence the effectiveness of ionizing radiation. Furthermore, various aspects, including economics, that affect the feasibility of using Co-60 for TCDD destruction are considered. Preliminary consideration of some key economic factors indicates that the costs of a Co-60 systems are competitive relative to electron beam or incineration systems.

引用

页码：263 / 268

页数：6

共 21 条

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