A FEASIBILITY STUDY OF DECHLORINATION OF CHLOROFORM IN WATER BY ULTRASOUND IN THE PRESENCE OF HYDROGEN-PEROXIDE

被引:20
作者
CHEN, JR [1 ]
XU, XW [1 ]
LEE, AS [1 ]
YEN, TF [1 ]
机构
[1] UNIV SO CALIF,213A BHE,LOS ANGELES,CA 90089
关键词
D O I
10.1080/09593339009384930
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Dechlorination of chloroform in water with ultrasound in combination with hydrogen peroxide has been studied. It is believed that the decomposition of chloroform is accomplished by free radical reaction. The experimental results indicate that the optimal hydrogen peroxide concentration has a molar ratio of H2O2:CHCl3 = 50:1. The addition of ferrous ions (20 mg L−1) into solution will increase the efficiency while the addition of methanol will decrease the efficiency. Under optimal conditions the efficiency in removal of chloroform can reach 94%. A kinetic plot shows that the overall reaction appears to be a first order reaction. © 1990 Publications Division Selper Ltd.
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页码:829 / 836
页数:8
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