STUDIES ON SEPARATION CHARACTERISTICS OF HEXAVALENT CHROMIUM FROM AQUEOUS-SOLUTION BY FLY-ASH

Authors
DASMAHAPATRA GP PAL TK BHADRA AK BHATTACHARYA B
Citation
Gp. Dasmahapatra et al., STUDIES ON SEPARATION CHARACTERISTICS OF HEXAVALENT CHROMIUM FROM AQUEOUS-SOLUTION BY FLY-ASH, Separation science and technology, 31(14), 1996, pp. 2001-2009
Citations number
11
Categorie Soggetti
Engineering, Chemical",Chemistry
Journal title
Separation science and technology → ACNP
ISSN journal
01496395
Volume
31
Issue
14
Year of publication
1996
Pages
2001 - 2009
Database
ISI
SICI code
0149-6395(1996)31:14<2001:SOSCOH>2.0.ZU;2-M
Abstract
Hexavalent chromium has been separated from an aqueous solution by fly ash. The particle size distribution and physical properties of fly as h have been illustrated. It is observed that the percent removal of Cr 6+ by fly ash is affected by its concentration in aqueous solution, te mperature, particle size, and pH. Better separation is obtained at aci dic pH and at higher temperature. Particle size has a nonsignificant e ffect on separation. The reaction kinetics of separation follows first -order kinetics more satisfactorily at higher temperature.