引用本文:
Xi Kui WANG, Guan Hong CHEN, Zhong Yan YAO. Sonochemical Degradation of Polychlorinated Biphenyls in Aqueous Solution[J]. Chinese Chemical Letters,
2003, 14(2): 205-208.
Citation: Xi Kui WANG, Guan Hong CHEN, Zhong Yan YAO. Sonochemical Degradation of Polychlorinated Biphenyls in Aqueous Solution[J]. Chinese Chemical Letters, 2003, 14(2): 205-208.
Citation: Xi Kui WANG, Guan Hong CHEN, Zhong Yan YAO. Sonochemical Degradation of Polychlorinated Biphenyls in Aqueous Solution[J]. Chinese Chemical Letters, 2003, 14(2): 205-208.
Sonochemical Degradation of Polychlorinated Biphenyls in Aqueous Solution
摘要:
Polychlorinated biphenyl (PCB) is a kind of persistent and dangerous environmental pollutants.This paper presented the research result of sonochemical degradation of 2-chloro- biphenyl (2-CBP), 4-chlorobiphenyl (4-CBP) and 4,4'-dichlorobiphenyl (4,4'-CBP)in water.The ultrasonic degradation kinetics of 2-CBP, 4-CBP and 4,4'-CBP in water were found to be first-order and the degradation rate coefficients are 3.69×10-2, 3.19×10-2 and 2.06×10-2 at 25±1℃ for 2-CBP, 4-CBP and 4,4'-CBP respectively.The influence of initial concentrations, reaction temperature on the ultrasonic decomposition of 2-CBP were also investigated.
English
Sonochemical Degradation of Polychlorinated Biphenyls in Aqueous Solution
Abstract:
Polychlorinated biphenyl (PCB) is a kind of persistent and dangerous environmental pollutants.This paper presented the research result of sonochemical degradation of 2-chloro- biphenyl (2-CBP), 4-chlorobiphenyl (4-CBP) and 4,4'-dichlorobiphenyl (4,4'-CBP)in water.The ultrasonic degradation kinetics of 2-CBP, 4-CBP and 4,4'-CBP in water were found to be first-order and the degradation rate coefficients are 3.69×10-2, 3.19×10-2 and 2.06×10-2 at 25±1℃ for 2-CBP, 4-CBP and 4,4'-CBP respectively.The influence of initial concentrations, reaction temperature on the ultrasonic decomposition of 2-CBP were also investigated.
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Key words:
- Polychlorinated biphenyl
- / degradation
- / sonochemistry
- / 2-chlorobiphenyl
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