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Chemical neutralization of acidic wastes using fly ash in Israel

โœ Scribed by Mehmet Polat; Eli Lederman; Ithamar Pelly; Haim Cohen

Publisher
Wiley (John Wiley & Sons)
Year
2002
Tongue
English
Weight
124 KB
Volume
77
Category
Article
ISSN
0268-2575

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โœฆ Synopsis

Abstract

Israeli fly ash is highly basic when exposed to water, due to the very low sulfur content allowed in coal imports because of the strict environmental regulations (with respect to SO~x~ emissions). Thus, the fly ash is a potential chemical neutralization/fixation agent for acidic wastes. In this study, coal fly ash has been examined as a neutralization/fixation agent for acidic sludge produced from the regeneration of used engine oils. The initial results show that the fly ash can be used as a very efficient neutralization/fixation agent of the sludge. Furthermore the trace elements and the organic components are efficiently fixed within the fly ash particles. The product can serve as a good aggregate in concrete production. The neutralization and fixation processes are discussed in detail.

ยฉ 2002 Society of Chemical Industry

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โœ Mehmet Polat; Erkan Guler; Gul Akar; Hasan Mordogan; Uner Ipekoglu; Haim Cohen ๐Ÿ“‚ Article ๐Ÿ“… 2002 ๐Ÿ› Wiley (John Wiley & Sons) ๐ŸŒ English โš– 113 KB

## Abstract Lignitic fly ashes from two power plants in western Turkey were employed to neutralize the Acid Mine Drainage (AMD) effluents originating from a pyritic ore from northern Turkey. The AMD was rich in heavy metals with a pH of about 2. The fly ash samples, on the other hand, showed strong