Clean-up and disposal process of polluted sediments from urban rivers

Article type: Research Article

Authors: He, Pin-jing | Shao, Li-ming | Gu, Guo-wei | Bian, Cheng-lin | Xu, Chen

Affiliations: State Key Laboratory of Pollution Control and Resource Reuse School of Environmental Science and Engineering, TongjiUniversity, Shanghai 200092, China. E-mail:yangbibiyang@etang.com | Urban River Management Agency, Yangpu District, 200093 Shanghai China

Abstract: In this paper, the discussion is concentrated on the properties of the polluted sediments and the combination of clean-up and disposal process for the upper layer heavily polluted sediments with good flowability. Based on the systematic analyses of various clean-up processes, a suitable engineering process has been evaluated and recommended. The process has been applied to the river reclamation in Yangpu District of Shanghai metropolis. An improved centrifuge is used for dewatering the dredged sludge,which plays an important role in the combination of clean-up and disposal process. The assessment of the engineering process shows its environmental and technical economy feasibility, which is much better than that of traditional dredging-disposal processes.

Keywords: urban rivers, feasibility analysis, dewatering, dredging, disposal, clean-up, polluted sediments

Journal: Journal of Environmental Sciences, vol. 13, no. 4, pp. 435-438, 2001