DECHLORINATION OF POPs IN FLY ASH AND METALS ACCUMULATION IN ARIAKE BAY: DECHLORINATION OF POLYCHLORINATED AROMATIC COMPOUNDS IN FLY ASH AND METALS ACCUMULATION IN ARIAKE BAY, JAPAN - Couverture souple

GHAFFAR, Abdul

 
9783843363150: DECHLORINATION OF POPs IN FLY ASH AND METALS ACCUMULATION IN ARIAKE BAY: DECHLORINATION OF POLYCHLORINATED AROMATIC COMPOUNDS IN FLY ASH AND METALS ACCUMULATION IN ARIAKE BAY, JAPAN
Couverture souple
ISBN 10 : 3843363153 ISBN 13 : 9783843363150
Editeur : LAP LAMBERT Academic Publishing, 2010

Synopsis

Dechlorination of chlorobenzene and substituted chlorobenzene compounds on fly ash under oxygen deficient and mild conditions was performed. Reactions were carried out at different temperature with different mixed organic solvents. Solutions of sulfur with potassium hydroxide, sodium hydroxide and calcium hydroxide were applied for hydro-de3chlorination. Dechlorination of chlorobenzene, dichlorobenzene,trichlorobenzene and hexa-chlorobenzene was higher in water/isopropanol solvent by using a solution of calcium hydroxide/sulfur which was further increased by addition of sodium hydroxide. Whereas dechlorination % of p-nitrochlorobenzene, p-chloroanisole and 1-chloronaphthalene was higher at temperature <100 oC. Metals in general, and Cu, Fe and Pb in particular, enhanced the catalytic potential of fly ash. But at high temperature (120- 170oC), dechlorination process was adversely affected by these metals. Moreover, the fly ash particles provided the surface to accomplish reduction and substitution reactions. Metals accumulation (source of induction as well) controlled by AVS,TOC, particle size of sediment and its moisture contents in Ariake bay was explored.

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Présentation de l'éditeur

Dechlorination of chlorobenzene and substituted chlorobenzene compounds on fly ash under oxygen deficient and mild conditions was performed. Reactions were carried out at different temperature with different mixed organic solvents. Solutions of sulfur with potassium hydroxide, sodium hydroxide and calcium hydroxide were applied for hydro-de3chlorination. Dechlorination of chlorobenzene, dichlorobenzene,trichlorobenzene and hexa-chlorobenzene was higher in water/isopropanol solvent by using a solution of calcium hydroxide/sulfur which was further increased by addition of sodium hydroxide. Whereas dechlorination % of p-nitrochlorobenzene, p-chloroanisole and 1-chloronaphthalene was higher at temperature <100 oC. Metals in general, and Cu, Fe and Pb in particular, enhanced the catalytic potential of fly ash. But at high temperature (120- 170oC), dechlorination process was adversely affected by these metals. Moreover, the fly ash particles provided the surface to accomplish reduction and substitution reactions. Metals accumulation (source of induction as well) controlled by AVS,TOC, particle size of sediment and its moisture contents in Ariake bay was explored.

Biographie de l'auteur

Ph.D. (chemistry)department of chemistry, faculty of science and engineering, Saga University, Saga city, Japan. (2005-2009) M.Sc. (applied environmental sciences) University of Punjab Lahore, Pakistan. (1999-2001) M.Sc. (chemistry) University of Punjab Lahore, Pakistan. (1995- 1997) Gold medalist

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Éditeur
LAP LAMBERT Academic Publishing
Date d'édition
2010
Langue
anglais
ISBN 10 
3843363153
ISBN 13 
9783843363150
Reliure
Broché
Nombre de pages
236
Coordonnées du fabricant
non disponible
Personne responsable
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