Abstract
Lignitic fly ashes from two power plants in western Turkey were employed to neutralize the Acid Mine Drainage (AMD) effluents originating from a pyritic ore from northern Turkey. The AMD was rich in heavy metals with a pH of about 2. The fly ash samples, on the other hand, showed strong alkalinity when mixed with water. The product was an aggregate with basic reactivity in most cases. The fly ashes were able to neutralize large amounts of AMD. When the aggregate was placed in water, notable leaching of toxic metals into solution was observed. When an organic additive, waste motor oil in this case, was added during the mixing step, the leaching of metals into water from the resulting aggregate was practically zero.
| Original language | English |
|---|---|
| Pages (from-to) | 372-376 |
| Number of pages | 5 |
| Journal | Journal of Chemical Technology and Biotechnology |
| Volume | 77 |
| Issue number | 3 |
| DOIs | |
| State | Published - 25 Mar 2002 |
Keywords
- Acidic mine drainage
- Fixation
- Fly ash
- Heavy metals
- Neutralization
ASJC Scopus subject areas
- Biotechnology
- Chemical Engineering (all)
- Renewable Energy, Sustainability and the Environment
- Fuel Technology
- Waste Management and Disposal
- Pollution
- Organic Chemistry
- Inorganic Chemistry
