Microstructural and Mineralogical Transformation of Hydraulically Disposed Fly Ash—Implications to the Environment

Authors

Jabulani S. Mahlaba, University of Pretoria, Department of Civil Engineering, Pretoria, 0002, South Africa; Sasol Technology Pty (Ltd.), R&D, Environmental Sciences and Engineering, P/bag x1034, Secunda, 2302, South Africa
Elsabe P. Kearsley, Sasol Technology Pty (Ltd.), R&D, Environmental Sciences and Engineering, P/bag x1034, Secunda, 2302, South Africa
Richard A. Kruger, Richonne Consulting, P.O. Box 742, Somerset Mall, Cape Town, 7137, South Africa

Document Type

Article

Abstract

Increasing amounts of coal are combusted annually to meet the ever-increasing energy demands. The inevitable by-products include fly ash and saline effluents, which require acceptable disposal. The aim of this article is to compare the effect of hydraulic disposal with dry ash dumping. The results indicate that the former carries more environmental benefits based on the physical, chemical, and mineralogical aspects that were investigated.

First Page

21

Last Page

27

DOI

10.4177/CCGP-D-12-00001.1

Publication Date

1-1-2012

Recommended Citation

Mahlaba, J.S., Kearsley, E.P., Kruger, R.A., 2012, Microstructural and Mineralogical Transformation of Hydraulically Disposted Fly Ash-Implications to the Environment. Coal Combustion and Gasification Products 4, 21-27, doi: 10.4177/CCGP-D-12-00001.1