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Decolorization of Orange II using an anaerobic sequencing batch reactor with and without co-substrates

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Main Authors: Ong, Soon An, Dr., Eiichi, Toorisaka, Makoto, Hirata, Tadashi, Hano
Other Authors: saong@unimap.edu.my
Format: Article
Language:English
Published: The Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences 2013
Subjects:
Anaerobic reduction
Azo dye
Decolorization rate
Endogenous lysis
Orange II
Online Access:http://dspace.unimap.edu.my/xmlui/handle/123456789/30915
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spelling my.unimap-309152013-12-31T08:14:48Z Decolorization of Orange II using an anaerobic sequencing batch reactor with and without co-substrates Ong, Soon An, Dr. Eiichi, Toorisaka Makoto, Hirata Tadashi, Hano saong@unimap.edu.my Anaerobic reduction Azo dye Decolorization rate Endogenous lysis Orange II Link to publisher's homepage at http://www.journals.elsevier.com/ We investigated the decolorization of Orange II with and without the addition of co-substrates and nutrients under an anaerobic sequencing batch reactor (ASBR). The increase in COD concentrations from 900 to 1750 to 3730 mg/L in the system treating 100 mg/L of Orange II-containing wastewater enhanced color removal from 27% to 81% to 89%, respectively. In the absence of co-substrates and nutrients, more than 95% of decolorization was achieved by the acclimatized anaerobic microbes in the bioreactor treating 600 mg/L of Orange II. The decrease in mixed liquor suspended solids concentration by endogenous lysis of biomass preserved a high reducing environment in the ASBR, which was important for the reduction of the Orange II azo bond that caused decolorization. The maximum decolorization rate in the ASBR was approximately 0.17 g/hr in the absence of co-substrates and nutrients 2013-12-31T08:14:48Z 2013-12-31T08:14:48Z 2012-02 Article Journal of Environmental Sciences, vol. 24(2), 2012, pages 291-296 1001-0742 http://www.sciencedirect.com/science/article/pii/S1001074211607663 http://hdl.handle.net/123456789/30915 en The Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Anaerobic reduction
Azo dye
Decolorization rate
Endogenous lysis
Orange II
spellingShingle Anaerobic reduction
Azo dye
Decolorization rate
Endogenous lysis
Orange II
Ong, Soon An, Dr.
Eiichi, Toorisaka
Makoto, Hirata
Tadashi, Hano
Decolorization of Orange II using an anaerobic sequencing batch reactor with and without co-substrates
description Link to publisher's homepage at http://www.journals.elsevier.com/
author2 saong@unimap.edu.my
author_facet saong@unimap.edu.my
Ong, Soon An, Dr.
Eiichi, Toorisaka
Makoto, Hirata
Tadashi, Hano
format Article
author Ong, Soon An, Dr.
Eiichi, Toorisaka
Makoto, Hirata
Tadashi, Hano
author_sort Ong, Soon An, Dr.
title Decolorization of Orange II using an anaerobic sequencing batch reactor with and without co-substrates
title_short Decolorization of Orange II using an anaerobic sequencing batch reactor with and without co-substrates
title_full Decolorization of Orange II using an anaerobic sequencing batch reactor with and without co-substrates
title_fullStr Decolorization of Orange II using an anaerobic sequencing batch reactor with and without co-substrates
title_full_unstemmed Decolorization of Orange II using an anaerobic sequencing batch reactor with and without co-substrates
title_sort decolorization of orange ii using an anaerobic sequencing batch reactor with and without co-substrates
publisher The Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences
publishDate 2013
url http://dspace.unimap.edu.my/xmlui/handle/123456789/30915
_version_ 1643796416249724928
score 13.214268

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