海洋倾倒前疏浚底泥的去污染技术

doi:10.11978/j.issn.1009-5470.2010.01.015

Abstract

Abstract:

Dredged sediment is the main accumulative site of terrigenous pollutants going into the sea and main potential source of marine pollution. During the course of dredging and marine dumping, these pollutants in the dredged sediment can be released into the sea again, which can harm the marine environment. Therefore, treatment to turn the contaminated dredged sediment into harmless material has significant importance to the scientific management of marine dumping and the effective protection of the sea. The aim of this study is to review six main dredged sediment decontamination and treatment technologies, such as chemical and biosurfactant leaching, thermal treatment, electrodialytic method, ultrasound method, flotation method and bioremediation. The authors discuss the mechanisms of these technologies, effective factors, advantages and deficiencies. Combining several of treatment techniques such as physical, chemical and biological processes is a potentially effective way to treat the polluted dredged sediment in the near future.

Key words: dredged sediment, marine dumping, PTS

ZHANG Xiao-hui,SUN Hong-guang,HUANG Gen-hua,DOU Jin-lai. Dredged sediment decontamination technologies before marine dumping[J].Journal of Tropical Oceanography, 2010, 29(1): 15-19.

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Dredged sediment decontamination technologies before marine dumping

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