Study on Electrical Parameters and Microstructure of the Life Source-Contaminated Soil

  • Junchao Zang
  • Xinyu Xie
  • Lingwei Zheng
Conference paper


In this study, the life source polluted soils at various seepage depths (with different pollution degrees) were taken as the research object to perform the experiment tests of 150 samples for the determination of basic physical, electrochemical indicators and microstructure characters. The interaction between life source pollutants and clay promotes the increase of acidity, salinity, TDS, electro-conductibility, as well as the contents of such elements as Al, Fe, Mg, Ca, K and S with a critical depth exists at 23 cm. Such parameters as void ratio, clay content, and saturated permeability coefficient of the polluted soils are positively correlated to the seepage depth above the critical depth, while dry density are negatively correlated to seepage depth. Besides, a series of laboratory tests was conducted in a Miller Soil Box to investigate the electro-osmosis reinforcement properties of life source-contaminated soil. This study determined that the rank of the primary factors affecting the electro-osmosis treatment effect was voltage, energizing time, initial moisture content, initial pore water salinity and electrode material. The energy consumption coefficient increased by 100% after 20 h.


Drained consolidation Electro-osmosis Orthogonal design Contaminated soil Ion transport 


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© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  1. 1.Research Center of Coastal and Urban Geotechnical EngineeringZhejiang UniversityHangzhouChina
  2. 2.Ningbo Institute of TechnologyZhejiang UniversityNingboChina

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