Che Fauziah, lshak and Rosazlin , Abdullah (2014) In-situ immobilization of selected heavy metals in soils using agricultural wastes and industrial by-products. In: seminar on Management and Remediation Technologies of Rural Soils Contaminated by Heavy Metals and Radioactive Materials, 22 September 2014, Taiwan. (Unpublished)
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Abstract
Malaysian soils dominantly fall (about 75%) into the Ultisol and Oxisol Orders in Soil Taxonomy. These soils are generally acidic, pH of 4.0-5.0 and contain essentially of variable charge minerals, namely sesquioxides and kaolinite, thus, have low cation exchange capacity or cations retention capacity. Factors controlling heavy metals reactions and mobility in the soil system are pH, CEC, redox potential, etc. and these parameters will be exploited in the management of heavy metals contaminated soils. Amongst the remediation techniques opted are liming, in-situ chemical stabilization using agricultural wastes converted to biochar's, such as oil palm empty fruit bunch and rice husk biochar's, and industrial by-products such as Red gypsum, coal fly ash and water treatment residue, to be applied as soil amendments.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Additional Information: | Universiti Malaya |
| Uncontrolled Keywords: | Acidic soil; Liming; Biochar; Red gypsum; Coal fly ash; Drinking-water treatment residue |
| Subjects: | Q Science > Q Science (General) T Technology > T Technology (General) |
| Divisions: | University of Malaya |
| Depositing User: | Mr Mohd Zaimi Izwan Kamarunsaman |
| Date Deposited: | 23 May 2023 08:12 |
| Last Modified: | 23 May 2023 08:12 |
| URI: | http://commonrepo.um.edu.my/id/eprint/13501 |
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