Investigation and Analysis on Heavy Metal Pollution Status in a Southern Landfill Site of Dredged Sediment

Abstract

In order to grasp the distribution and spreading situations of heavy metal pollutants in a southern landfill site of dredged sediment, field investigation and indoor test analysis were conducted for a landfill site of river sediment in Shenzhen City. Drilling exploration and sampling were conducted in the landfill site, and test analysis was carried out for the contents and existing forms of heavy metal in the soil samples. Thus the distribution rule of heavy metal in the backfilled sediment was gained. According to the investigation and analysis results, the heavy metal pollution degree in the backfilled sediment can be determined, which will provide basis for landfill pollution assessment and control; besides, data can also be offered for back analysis on pollutant migration parameters in the soil layer.