Leaching Behaviour of Elements from High Sulphur Fly Ash

Article type: Research Article

Authors: Md. Equeenuddin, Sk. | Kumar, Santosh | Dutta, Shantanu Kumar

Affiliations: Department of Mining Engineering, National Institute of Technology Rourkela – 769008, Orissa, India | Central Pollution Control Board, Shillong – 793 014, Meghalaya, India

Note: [] Corresponding author: E-mail: [email protected]

Abstract: Environmental degradation due to leaching of elements from fly ash is of great concern. Leaching result of Cu, Fe, Mn, Pb and Zn from the high sulphur fly ash collected from captive power plant of Nagaon Paper Mill, Assam is reported. The pH of the leachate is weakly alkaline in nature, ranging from 7.39 to 7.90. Fly ash contains very high concentration of elements in comparison with Gondwana counterpart. However, mobilization of elements from the Nagaon fly ash is very less, and is possibly due to the presence of high unburnt carbon.

Keywords: Metals, unburnt carbon particle, fly ash

Journal: Asian Journal of Water, Environment and Pollution, vol. 9, no. 2, pp. 57-60, 2012