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E-Journal of Chemistry
Volume 8, S1, Pages S395-S403

X-Ray Diffraction and SEM Investigation of Solidification/ Stabilization of Nickel and Chromium Using Fly ash

Ranjana A. Patil1 and Sangesh P. Zodape2

1Yeshwantrao Chavan College of Engineering, Hingna Road, Wanadongari, Nagpur-441 110, Maharashtra, India
2N. Y. S. S. College of Engineering and Research, Hingna Road, Wanadongari, Nagpur-441 110, Maharashtra, India

Received 8 February 2011; Revised 15 May 2011; Accepted 5 June 2011

Copyright © 2011 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The main thrust of the paper is mechanism of immobilization of nickel(Ni) and chromium(Cr) metal sludge by solidification/stabilization using lime fly ash and sand (LFAS). The mineralogy of fly ash used for the study has been determined on the basis of x- ray diffraction analysis (XRD). Attempts have been made to investigate the consequences of interaction of heavy metal ion with constituents of lime fly ash sand composite on the basis of XRD studies and scanning electron microscopy (SEM, except chromium).