Geotechnical Properties of Effluent-Contaminated Cohesive Soils and Their Stabilization Using Industrial By-Products
| Autor: | Muhammad Ali, Muhammad Abrar, Yulong Chen, Osama Bhutta, Muhammad Irfan, Ahmed Qadri |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Environmental remediation
0211 other engineering and technologies Bioengineering 02 engineering and technology Atterberg limits lcsh:Chemical technology complex mixtures lcsh:Chemistry contamination Chemical Engineering (miscellaneous) lcsh:TP1-1185 Leachate Effluent 021101 geological & geomatics engineering 021110 strategic defence & security studies Process Chemistry and Technology Pulp and paper industry stabilization time variation Compressive strength lcsh:QD1-999 Ground granulated blast-furnace slag cohesive soils soil properties Soil water Environmental science Specific gravity effluents |
| Zdroj: | Processes, Vol 6, Iss 10, p 203 (2018) Processes Volume 6 Issue 10 |
| ISSN: | 2227-9717 |
| Popis: | The unchecked and unnoticed disposal of industrial leachates is a common malpractice in developing countries. Untreated effluents from industries drastically deteriorate the soil, altering nearly all of its characteristics. An increase in urbanization has led to construction on these deteriorated lands. In this study, the chemical impact of two industrial effluents, dyeing (acidic) and tannery (basic), is studied on two cohesive soils, i.e., high plastic clay (CH) and low plastic clay (CL). Properties such as liquid limit, plasticity index, specific gravity, maximum dry density, unconfined compressive strength, swell potential, swell pressure, and compression indices decrease with effluent contamination, with the exception of the basic effluent, for which the trend changes after a certain percentage. This study also examines the time variation of properties at different effluent percentages, finding that unconfined compressive strength of both soils increases with time upon dyeing (acidic) contamination and decreases with tannery (basic). The stabilizing effect of two industrial by-products, i.e., marble dust and ground granulated blast furnace slag (GGBFS) have been evaluated. Unlike their proven positive effect on uncontaminated soils, these industrial by-products did not show any significant stabilization effect on leachate-contaminated cohesive soils, thereby emphasizing the need to utilize special remediation measures for effluent treated soils. |
| Databáze: | OpenAIRE |
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