We use cookies on this website, you can read about them here. To use the website as intended please... ACCEPT COOKIES
UAL Research Online

Decolourisation of aqueous dyes by sequential oxidation treatment with ozone and Fenton's reagent

Hassan, Mohammad Mahbubul and Hawkyard, Christopher J (2002) Decolourisation of aqueous dyes by sequential oxidation treatment with ozone and Fenton's reagent. Journal of Chemical Technology and Biotechnology, 77 (7). pp. 834-841. ISSN 1097-4660

Type of Research: Article
Creators: Hassan, Mohammad Mahbubul and Hawkyard, Christopher J
Description:

Combined oxidation with ozone and Fenton's reagent (‘Fentozone’ process) for decolourisation of aqueous dyes was studied and compared with traditional Fenton's reagent. Although the ‘Fentozone’ process was found to be effective at a wide range of pH values, the maximum colour removal was achieved at pH 4. The effect of pre-ozonation on colour removal efficiency of aqueous dyestuffs in the subsequent treatment with Fenton's reagent was investigated. The reaction kinetics using water-soluble acid and reactive dyes were also studied. Our experimental results show that pre-ozonation can considerably accelerate decomposition of dyestuffs in the subsequent treatment with Fenton's reagent. Different concentrations of ferrous sulfate were used to investigate their influences on the removal of colour. The rate of reaction increased with increasing doses of ferrous sulfate.

Official Website: https://onlinelibrary.wiley.com/journal/10974660
Publisher/Broadcaster/Company: John Wiley & Sons
Your affiliations with UAL: Colleges > London College of Fashion
Date: 9 May 2002
Digital Object Identifier: 10.1002/jctb.641
Date Deposited: 04 Oct 2022 15:34
Last Modified: 04 Oct 2022 15:34
Item ID: 18987
URI: https://ualresearchonline.arts.ac.uk/id/eprint/18987

Repository Staff Only: item control page | University Staff: Request a correction