Oluwatuyi, Opeyemi E. and Ojuri, OO (2017) Environmental Performance of Lime–Rice Husk Ash Stabilized Lateritic Soil Contaminated with Lead or Naphthalene. Geotechnical and Geological Engineering, 35 (6). pp. 2947-2964.
Full text not available from this repository.Abstract
This study evaluates the environmental performance of a lime–rice husk ash stabilized lateritic soil that had been contaminated with either lead or naphthalene. The Lime and Rice husk ash mixed in a ratio of 1:2 was used as a stabilizing binder and added to the contaminated soil at diverse quantities of 5 and 10% by weight of the contaminated samples. Environmental performance of the soil-contaminant-binder mixes were evaluated from the leaching and batch equilibrium adsorption tests conducted on the samples. Mineralogical analysis was also carried out on the leached samples using the X-ray diffractometer to determine the predominant minerals. The leaching test revealed that the lead concentration in the leachate was reduced below the allowable standard limit of 5 mg/l for lead, even after a duration of disturbed shaking at pH 3 ± 0.5 as the binder addition was increased from 0 to 5 to 10%. The binder addition was not effective to reduce the leachate concentrations of the naphthalene contaminant below the allowable standard limit for naphthalene in soil which is 0.2 µg/l. The batch equilibrium adsorption test showed that lateritic soil had a good adsorption capacity for both contaminants, which increased with an increase in the binder addition.
| Item Type: | Article |
|---|---|
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TD Environmental technology. Sanitary engineering T Technology > TE Highway engineering. Roads and pavements |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Civil Engineering and the Environment |
| Depositing User: | Opeyemi Oluwatuyi |
| Date Deposited: | 12 Sep 2018 12:14 |
| Last Modified: | 12 Sep 2018 12:14 |
| URI: | https://eprints.lmu.edu.ng/id/eprint/1227 |
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