Geoenvironmental behaviour of lead-contaminated clay with sawdust
| Autor: | Parsa Mohajeri, Hossein Farraji, Mohamad Razip bin Selamat, Amir Hossein Vakili, Hamidi Abdul Aziz |
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| Rok vydání: | 2019 |
| Předmět: |
Environmental Engineering
Waste management 0211 other engineering and technologies 02 engineering and technology 010501 environmental sciences Management Monitoring Policy and Law Contamination Geotechnical Engineering and Engineering Geology 01 natural sciences Lead (geology) Geochemistry and Petrology visual_art visual_art.visual_art_medium Environmental Chemistry Environmental science Sawdust Waste Management and Disposal Subsoil Groundwater 021101 geological & geomatics engineering 0105 earth and related environmental sciences Nature and Landscape Conservation Water Science and Technology |
| Zdroj: | Environmental Geotechnics. 6:450-459 |
| ISSN: | 2051-803X |
| DOI: | 10.1680/jenge.16.00030 |
| Popis: | Clayey composite liners are appointed in modern landfills to isolate wastes from the environment and minimise the escape of contaminants that are affecting the groundwater and the subsoil. Enhanced compressibility and reduced permeability are considered favourable; however, the ameliorating liners are at risk of losing these properties and thus the ability to contain the contaminant due to changing pH and contaminant contents during the long course of service. This research investigated the change in the mechanical properties, namely, the compression index c c, permeability coefficient K and void ratio–effective stress curve e against log σ′ of bentonite clay treated with chemically modified sawdust contents and laced with various lead nitrate (Pb(NO3)2) concentrations. The optimum values were simultaneously achieved for c c and K, in the 10% sawdust of pH 10 design, with lead (Pb) concentration |
| Databáze: | OpenAIRE |
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