The influence of hazardous liquid waste on the permeability of earthen liners |
| |
| Authors: | K Kayabalı M Mollamahmutoğlu |
| |
| Institution: | (1) University of Ankara, Geological Engineering Department, Turkey, e-mail: kayabali@science.ankara.edu.tr, TR;(2) Gazi University, Civil Engineering Department, Turkey, TR |
| |
| Abstract: | Permeability and its susceptibility to changes with time or exposure to chemicals are major factors in selection of earthen
liners for use in hazardous liquid-waste containment systems. Earthen liners often consist of mixtures including both granular
soil and fine matrix. Six different solid mixtures were tested to investigate the influence of hazardous liquid waste on their
permeability. The granular part of the mixtures included sand and crushed natural zeolite, whereas the matrix was composed
of bentonite and microcement. Highly acidic solutions, bases, leather industry leachate and municipal waste leachate were
used as permeants. Of the mixtures tested, only two mixtures performed well against the attack of chemicals. The testing method
was the falling head system with the compaction mold permeameter. The period of experiments varied from two to eight weeks.
Received: 24 September 1998 · Accepted: 5 January 1999 |
| |
| Keywords: | Hazardous liquid waste Leachate Earthen liners Permeability Natural zeolite Bentonite Microcement |
| 本文献已被 SpringerLink 等数据库收录！ |
|
