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Studies on adsorption and biodegradation of chromiumcontaining wastewater by laboratory-scale sequencing batch reactor-powdered activated carbon system

Link to publisher's homepage at http://omicron.ch.tuiasi.ro/EEMJ/

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Main Authors: Ong, Soon An, Eiichi, Toorisaka, Makoto, Hirata, Tadashi, Hano
Other Authors: ongsoonan@yahoo.com
Format: Article
Language:English
Published: Gh. Asachi Technical University of IASI 2016
Subjects:
Chromium
Dissolved oxygen
Sequencing batch reactor
Specific oxygen uptake rate
Toxic effect
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/41482
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spelling my.unimap-414822016-05-09T03:07:00Z Studies on adsorption and biodegradation of chromiumcontaining wastewater by laboratory-scale sequencing batch reactor-powdered activated carbon system Ong, Soon An Eiichi, Toorisaka Makoto, Hirata Tadashi, Hano ongsoonan@yahoo.com Chromium Dissolved oxygen Sequencing batch reactor Specific oxygen uptake rate Toxic effect Link to publisher's homepage at http://omicron.ch.tuiasi.ro/EEMJ/ The study involved investigating the effects of Cr(III) and the efficacy of powdered activated carbon (PAC) in reducing the inhibitory effects of Cr(III) on activated sludge under sequencing batch reactor (SBR) operation. The addition of Cr(III) into SBR system caused significant inhibitory effects on the activity of activated sludge as indicated by drastic drop in specific oxygen uptake rate (SOUR). The increase of Cr(III) concentration from 5 to 10 mg/L further deteriorated the treatment performance of SBR system in terms of the total organic carbon (TOC), suspended solids (SS) and Cr(III) removal efficiencies. With 0.167 g/L PAC (0.5 g PAC/cycle) addition into the SBR reactor influent wastewater, the TOC and Cr(III) removal efficiencies were improved from 88 to 94% and 82 to 90%, respectively. Coupled with the increasing mixed liquor biomass suspended solids concentration after PAC addition, the biomass apparently played the key role in the uptake of Cr(III) and kept the effluent Cr(III) concentration low. The addition of PAC was an effective way to allow continuous operation of the biological process in the presence of Cr(III) as indicated by increased SOUR as well as Cr(III) and TOC removal efficiencies. 2016-05-09T03:07:00Z 2016-05-09T03:07:00Z 2011-10 Article Environmental Engineering and Management Journal, vol.10 (10), 2011, pages 1425-1432 1582-9596 http://omicron.ch.tuiasi.ro/EEMJ/ http://dspace.unimap.edu.my:80/xmlui/handle/123456789/41482 en Gh. Asachi Technical University of IASI
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 Chromium
Dissolved oxygen
Sequencing batch reactor
Specific oxygen uptake rate
Toxic effect
spellingShingle Chromium
Dissolved oxygen
Sequencing batch reactor
Specific oxygen uptake rate
Toxic effect
Ong, Soon An
Eiichi, Toorisaka
Makoto, Hirata
Tadashi, Hano
Studies on adsorption and biodegradation of chromiumcontaining wastewater by laboratory-scale sequencing batch reactor-powdered activated carbon system
description Link to publisher's homepage at http://omicron.ch.tuiasi.ro/EEMJ/
author2 ongsoonan@yahoo.com
author_facet ongsoonan@yahoo.com
Ong, Soon An
Eiichi, Toorisaka
Makoto, Hirata
Tadashi, Hano
format Article
author Ong, Soon An
Eiichi, Toorisaka
Makoto, Hirata
Tadashi, Hano
author_sort Ong, Soon An
title Studies on adsorption and biodegradation of chromiumcontaining wastewater by laboratory-scale sequencing batch reactor-powdered activated carbon system
title_short Studies on adsorption and biodegradation of chromiumcontaining wastewater by laboratory-scale sequencing batch reactor-powdered activated carbon system
title_full Studies on adsorption and biodegradation of chromiumcontaining wastewater by laboratory-scale sequencing batch reactor-powdered activated carbon system
title_fullStr Studies on adsorption and biodegradation of chromiumcontaining wastewater by laboratory-scale sequencing batch reactor-powdered activated carbon system
title_full_unstemmed Studies on adsorption and biodegradation of chromiumcontaining wastewater by laboratory-scale sequencing batch reactor-powdered activated carbon system
title_sort studies on adsorption and biodegradation of chromiumcontaining wastewater by laboratory-scale sequencing batch reactor-powdered activated carbon system
publisher Gh. Asachi Technical University of IASI
publishDate 2016
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/41482
_version_ 1643799635842564096
score 13.214268

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