| Title |
A Study on the Electrokinetic Acceleration of Clayey Particles Settling in Suspension |
| Keywords |
clay soil;electrokinetics;settling velocity;slurry;river beds;water content;점토슬러리;동전기적 침강;침강속도;하상퇴적토;함수비 |
| Abstract |
The liver maintenance processing has revealed that the river beds in Korea have been significantly polluted in various ways for the last two decades. Thus, the dredging, transportation and landfilling of these contaminated materials are attracting public attention these days. In this study, electrokinetic method was applied in order to accelerate the settling processes of clay particles in suspension and evaluate the factors affecting the settling behaviour. It has been found from the testing results that the settling velocity under the influence of electrokinetics was much faster than the gravitational one, and the water content of slurry soil reduced significantly after the electrokinetic processing. The initial water content of slurry soil should be one of the important factors affecting the settling behaviour as well as variation of water content, and hence the electrokinetic processing would be the cost-effective method for the field application. |