Bentonite as sealing material in geosynthetic clay liners – Influence of the electrolytic concentration, the ion exchange and ion exchange with simultaneous partial desiccation on permeability

2021 ◽  
pp. 141-153
Author(s):  
T.A. Egloffstein
Keyword(s):  
Ion Exchange ◽  
Geosynthetic Clay Liners ◽  
Clay Liners ◽  
Sealing Material ◽  
Partial Desiccation

scholarly journals Kaolin based protective barrier in municipal landfills against adverse chemo-mechanical loadings

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Partha Das ◽  
Tadikonda Venkata Bharat
Keyword(s):  
Ionic Strength ◽  
High Ionic Strength ◽  
The Self ◽  
Design Parameters ◽  
Layered System ◽  
Geosynthetic Clay Liners ◽  
Clay Liners ◽  
Landfill Liner ◽  
First Time ◽  
Applied Stresses

AbstractIn this work, we assess the self-sealing and swelling ability of the compacted granular bentonite (GB) under an inorganic salt environment and induced overburden stresses from the landfill waste. The laboratory permeation tests with high ionic strength salt solutions reveal that the GB fails to seal and exhibits a significant mechanical collapse under different applied stresses. The applicability of GB in the form of geosynthetic clay liners as the bottom liner facilities in landfills that produce high ionic strength salt leachates, therefore, remains a serious concern. We propose an additional barrier system based on kaolin, for the first time, to address this problem. The proposed kaolin-GB layered system performs satisfactorily in terms of its sealing and swelling ability even in adverse saline conditions and low overburden stresses. The kaolin improves the osmotic efficiency of the self and also helps the underlying GB layer to seal the inter-granular voids. The estimated design parameters by through-diffusion test suggest that the kaolin-GB layered system effectively attenuates the permeant flux and suitable as a landfill liner.

Long-term shear strength of geosynthetic clay liners

2008 ◽  
Vol 26 (2) ◽  
pp. 130-144 ◽  
Author(s):  
Werner Müller ◽  
Ines Jakob ◽  
Stefan Seeger ◽  
Renate Tatzky-Gerth
Keyword(s):  
Shear Strength ◽  
Geosynthetic Clay Liners ◽  
Clay Liners

Challenges of the Filter Paper Suction Measurements in Geosynthetic Clay Liners: Effects of Method, Time, Capillarity, and Hysteresis

2021 ◽  
Vol 45 (2) ◽  
pp. 20200168
Author(s):  
A. S. Acikel ◽  
A. Bouazza ◽  
R. M. Singh ◽  
W. P. Gates ◽  
R. K. Rowe
Keyword(s):  
Filter Paper ◽  
Geosynthetic Clay Liners ◽  
Clay Liners

Effect of incineration ash leachates on the hydraulic conductivity of bentonite-polymer composite geosynthetic clay liners

2022 ◽  
Vol 139 ◽  
pp. 25-38
Author(s):  
Christian Wireko ◽  
Tarek Abichou ◽  
Kuo Tian ◽  
Binte Zainab ◽  
Zhiming Zhang
Keyword(s):  
Hydraulic Conductivity ◽  
Polymer Composite ◽  
Geosynthetic Clay Liners ◽  
Clay Liners

Field Study of Installation Damage for Geosynthetic Clay Liners

1998 ◽  
Vol 5 (5) ◽  
pp. 491-520 ◽  
Author(s):  
P.J. Fox ◽  
E.J. Triplett ◽  
R.H. Kim ◽  
J.T. Olsta
Keyword(s):  
Field Study ◽  
Geosynthetic Clay Liners ◽  
Clay Liners

Occurrence and effect of bentonite migration in geosynthetic clay liners

2004 ◽  
Vol 11 (4) ◽  
pp. 296-310 ◽  
Author(s):  
T. D. Stark ◽  
H. Choi ◽  
R. Akhtarshad
Keyword(s):  
Geosynthetic Clay Liners ◽  
Clay Liners

Hydraulic performance of geosynthetic clay liners under gravel cover soils

2000 ◽  
Vol 18 (2-4) ◽  
pp. 179-201 ◽  
Author(s):  
Patrick J Fox ◽  
Daniel J De Battista ◽  
David G Mast
Keyword(s):  
Hydraulic Performance ◽  
Geosynthetic Clay Liners ◽  
Clay Liners
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