Title:
Effect of Chemical Activation of a lagoon Ash on its Physico-Chemico-Mineralogical Properties
Author(s):
P. K. Kolay and D. N. Singh
Publication:
Symposium Paper
Volume:
199
Issue:
Appears on pages(s):
43-54
Keywords:
lagoon ash; synthesis; water-interac
tion; zeolites
DOI:
10.14359/10483
Date:
6/1/2001
Abstract:
Synopsis: The amount of ash, produced from the coal fired thermal power plants and its hazardous impact on the environment is continuously increasing. This poses a challenging task of safe handling, proper disposal and utilisation of the ash. The huge quantity of ash produced from these power plants calls for a special attention in terms of its proper utilisation, either directly, or conversion into a value-added product. Chemical activation of the coal ash is being practised for synthesising ash zeolites. These zeolites are being used for various environmental protection schemes and other industrial processes. With this object in view, an effort has been made in this paper to study the effect of chemical activation of a typical class F lagoon ash. This chemical activation is achieved under controlled conditions, in the laboratory, with different concentrations of alkali (NaOH) and for different durations of activation.