Electrokinetic settling and sedimentation behavior of cohesive soils in dilute suspension
- Title
- Electrokinetic settling and sedimentation behavior of cohesive soils in dilute suspension
- Author
- 김수삼
- Keywords
- clayey soil; electrolyte; electrokinetics; electroosmosis; electrophoresis; kaolin; marine clay; pH; sedimentation; settling behavior; suspension
- Issue Date
- 2008-06
- Publisher
- TAYLOR & FRANCIS INC
- Citation
- JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING, v. 43, No. 8, Page. 975-984
- Abstract
- In this study, the electrokinetic (EK) effects on settling behavior of clayey soils under different electrolyte solution, electric field strength, and moisture content were evaluated using kaolin and natural marine clay. A number of laboratory-scale column experiment were carried out in order to examine the effects of electrophoresis and electro-osmosis during settling processes. The settling velocity under different electrolyte solution was found to become faster resulting from the formation of floc due to the contraction of electrical double layer. The electrically induced surface settlement was faster in settling rate and greater in magnitude by comparison with that under the conventional gravitational sedimentation. The effects of electrophoresis on settling behavior become significant from the beginning of hindered settling stage due to the influence of electrochemical interactions between the charged clay particles.
- URI
- https://www.tandfonline.com/doi/abs/10.1080/10934520801974590https://repository.hanyang.ac.kr/handle/20.500.11754/80396
- ISSN
- 1093-4529
- DOI
- 10.1080/10934520801974590
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > CIVIL AND ENVIRONMENTAL ENGINEERING(건설환경공학과) > Articles
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