Proceedings of the Korean Geotechical Society Conference (한국지반공학회:학술대회논문집)
- 2008.03a
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- Pages.938-946
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- 2008
The characteristics of premeability and formation of clay cake by electrophoresis technique
전기영동기법에 의한 점토케이크의 형성과 투수특성
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Kim, Jong-Yun
(Dept. of Civil Engineering, Hanyang University) ;
- Kim, Tae-Ho (Dept. of Civil Engineering, Hanyang University) ;
- Kim, Dae-Ra (Dept. of Civil Engineering, Hanyang University) ;
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Han, Sang-Jae
(Expert Group for Earth & Environment Co. LTD) ;
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Kim, Soo-Sam
(Dept. of Civil Engineering, Hanyang University)
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김종윤
(한양대학교 토목공학과) ;
- 김태호 (한양대학교 토목공학과) ;
- 김대라 (한양대학교 토목공학과) ;
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한상재
((주)지구환경전문가그룹 연구소) ;
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김수삼
(한양대학교 토목공학과)
- Published : 2008.03.28
Abstract
This study is on sealing leakage holes where are in landfills to make clay cakes with clay particles, which have a negative surface charge using the method of electrophoresis. Generally, electrophoresis is the motion of charged particles in a colloid under the influence of an electric field; particles with a positive charge go to the cathode and negative to the anode. In this study in order to develop the prevention system of leakages of the leachate in landfills, one-dimensional electrophoresis tests were conducted for determining the properties of the motion of the electrophoresis and cutoff using the method of electrophoresis depending on various the effect factors such as types of clays, concentrations of the clays, and applied electric field. In case of the experiments of determining the optimum clays, Na and Ca-Bentonite, Na and Ca-Montmorillonite, which have greater zeta-potential, cation, exchange capacity as well as ability of cutoff, and Micro-cement inducing cementation were chosen and then the effect of those clays was investigated. Moreover, the properties of the motion and settling of the clays were investigated following electric field varied from 0 to 1V/cm at different concentration of the clays in order to determine both the properties of the motion of the clays and the efficiency of electric field when applying different direct current. Ultimately, the ability of cutoff was examined through measuring the permeability of the clay cakes derived from the one-dimensional electrophoresis tests.