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Characterization of an alkali activated lagoon ash and its application for heavy metal retention

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Title Characterization of an alkali activated lagoon ash and its application for heavy metal retention
 
Creator KOLAY, PK
SINGH, DN
 
Subject chemical activation
fossil fuel power plants
heavy metals
waste disposal
mineralogy
 
Description The wet disposal of ash, from the coal-fired thermal power plants, involves its mixing with water and its impoundment in the ash ponds or lagoons. This causes the interaction of ash and the alkalies present in it with water over a period and the formation of ash zeolites (i.e. zeolitization of the ash) takes place. In order to simulate such ash-water interactions, alkali activation of a typical lagoon ash, from India, has been conducted. Investigations have been conducted to identify the effect of zeolitization of the ash on its physical, chemical and mineralogical characteristics. Such studies are essential to explore the possibility of application of the lagoon ash, and the zeolitized ash, for various environmental applications, viz. retention and removal of heavy metals from the industrial sludge.
 
Publisher Elsevier
 
Date 2009-05-18T11:58:35Z
2011-12-08T07:20:36Z
2011-12-26T13:02:06Z
2011-12-27T05:48:04Z
2009-05-18T11:58:35Z
2011-12-08T07:20:36Z
2011-12-26T13:02:06Z
2011-12-27T05:48:04Z
2002
 
Type Article
 
Identifier Fuel 81(4), 483-489
00162361
10.1016/S0016-2361(01)00119-3
http://hdl.handle.net/10054/1373
http://dspace.library.iitb.ac.in/xmlui/handle/10054/1373
 
Language en