Effect of existing pollutants in leachate on geotechnical parameters of soil emphasizing organic pollution

Document Type : Original Research

Authors
T. Ebadi 1
E. Nabavi 2
G. A. Dezvareh 3
1 Faculty of Civil and Environmental Engineering, AmirKabir University of Technology, Tehran, Iran
2 Faculty of Civil Engineering, K.N. Toosi University of Technology, Tehran, Iran
3 Environment Department, Engineering Faculty, MehrAlborz University
10.22034/jaert.1.3.1
Abstract
Changes in pore fluid can significantly impact the geotechnical behavior of soil, especially clayey soil. One source of soil contamination is leachate, which can infiltrate nearby soil during the collection, transportation, and deposition stages of the residential waste disposal process, exerting geotechnical influences on the soil in the surrounding area. To assess these effects, four leachate samples were collected from different sites. The specimen comprises fine soil, created from a mixture of sand, bentonite, and kaolinite. Experimental results reveal a decreasing trend in the liquid limit, compaction parameters, and cohesion values of the soil with an increase in contamination level. However, the internal friction angle exhibits an increasing trend with higher leachate concentration, resembling the behavior of sandy soil, as opposed to the typical behavior of clay.

Keywords

Subjects

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Journal of Advanced Environmental Research and Technology
Volume 1, Issue 3 - Serial Number 3
September 2023
Pages 1-14