Laboratory study on the dielectric properties of contaminated soil using CPT deployed probe

2007 ◽  
Vol 11 (2) ◽  
pp. 121-130 ◽  
Author(s):  
Yong Sung Kim ◽  
Myoung Hak Oh ◽  
Junboum Park
1997 ◽  
Vol 16 (6) ◽  
pp. 1141-1148 ◽  
Author(s):  
David L. Widrig ◽  
Ramaraj Boopathy ◽  
John F. Manning

2019 ◽  
Vol 28 (3) ◽  
pp. 304-322
Author(s):  
Mohammad Ghavami ◽  
Daryoush Yousefi Kebria ◽  
Sadra Javadi ◽  
Omid Ghasemi-Fare

2005 ◽  
Vol 55 (4) ◽  
pp. 271-278 ◽  
Author(s):  
Irma Susana Morelli ◽  
María Teresa Del Panno ◽  
Graciela Liliana De Antoni ◽  
María Teresa Painceira

2021 ◽  
Vol 80 (5) ◽  
Author(s):  
Fusheng Zha ◽  
Fanghua Zhu ◽  
Long Xu ◽  
Bo Kang ◽  
Chengbin Yang ◽  
...  

Sensors ◽  
2020 ◽  
Vol 20 (22) ◽  
pp. 6677
Author(s):  
Andrea Vergnano ◽  
Alberto Godio ◽  
Carla Maria Raffa ◽  
Fulvia Chiampo ◽  
Jorge A. Tobon Vasquez ◽  
...  

In the bioremediation field, geophysical techniques are commonly applied, at lab scale and field scale, to perform the characterization and the monitoring of contaminated soils. We propose a method for detecting the dielectric properties of contaminated soil during a process of bioremediation. An open-ended coaxial probe measured the complex dielectric permittivity (between 0.2 and 20 GHz) on a series of six soil microcosms contaminated by diesel oil (13.5% Voil/Vtot). The microcosms had different moisture content (13%, 19%, and 24% Vw/Vtot) and different salinity due to the addition of nutrients (22 and 15 g/L). The real and the imaginary component of the complex dielectric permittivity were evaluated at the initial stage of contamination and after 130 days. In almost all microcosms, the real component showed a significant decrease (up to 2 units) at all frequencies. The results revealed that the changes in the real part of the dielectric permittivity are related to the amount of degradation and loss in moisture content. The imaginary component, mainly linked to the electrical conductivity of the soil, shows a significant drop to almost 0 at low frequencies. This could be explained by a salt depletion during bioremediation. Despite a moderate accuracy reduction compared to measurements performed on liquid media, this technology can be successfully applied to granular materials such as soil. The open-ended coaxial probe is a promising instrument to check the dielectric properties of soil to characterize or monitor a bioremediation process.


Sign in / Sign up

Export Citation Format

Share Document