Dayang Norfadzila, Awang Johari (2009) Leaching of heavy metals from fly ash. [Final Year Project Report] (Unpublished)
![]() |
PDF
DAYANG NORFADZILA BINTI AWANG JOHARI 24pgs.pdf Download (637kB) |
![]() |
PDF (Please get the password by email to repository@unimas.my, or call ext: 3914/ 3942/ 3933)
Dayang Norfadzila Awang Johari ft.pdf Restricted to Registered users only Download (1MB) |
Abstract
Disposal of coal fly ash is a major issue due to its potential to cause surface and groundwater contamination. Stabilization is one of the effective methods of dealing with heavy metals in contaminated soil. In this study, the stabilization was evaluated using leaching tests. Fly ash samples was applied to the agricultural soil in the ratio of 1:9 in order to investigate the concentration of available metals (Cd, Zn, Ni, Mn, Cu, Cr and Fe) in leachates from 0 – 15 days of stabilization. The different mobilization media, namely deionized water and acidified water (deionized water acidified with nitric acid solution to pH = 4.0) was passed through to the soil-fly ash mixtures in the columns. Soil and fly ash samples were characterized for their physical and chemical properties as their properties greatly influenced the leaching potential. The heavy metals concentrations were analyzed by using Flame Atomic Absorption Spectrophotomter (FAAS). The results obtained from the leaching experiments showed that the addition of fly ash to agricultural soil had reduced the concentrations of available metals except for Cr. pH and electrical conductivity of leachates were analyzed and results found that pH increased while electrical conductivity decreased from 0 day to 15 days of contact time. Statistical analysis showed significant differences (P < 0.05) for particular metals between all treatments for almost at all contact time.
Item Type: | Final Year Project Report |
---|---|
Additional Information: | Project Report (B.Sc.) -- Universiti Malaysia Sarawak, 2009. |
Uncontrolled Keywords: | Fly Ash,Analysis,Environmental aspects, heavy metals, soil, mobilization media, leaching, column, Universiti Malaysia Sarawak, unimas, university, universiti, Borneo, Malaysia, Sarawak, Kuching, Samarahan, ipta, education, undergraduate |
Subjects: | G Geography. Anthropology. Recreation > GE Environmental Sciences |
Divisions: | Academic Faculties, Institutes and Centres > Faculty of Resource Science and Technology Faculties, Institutes, Centres > Faculty of Resource Science and Technology |
Depositing User: | Karen Kornalius |
Date Deposited: | 19 Jun 2015 03:19 |
Last Modified: | 05 Jul 2023 07:45 |
URI: | http://ir.unimas.my/id/eprint/7723 |
Actions (For repository members only: login required)
![]() |
View Item |