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Granular activated carbon-biofilm configured sequencing batch reactor treatment of C.I. Acid Orange 7

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Main Authors: Soon-An, Ong, Toorisaka, Eiichi, Hirata, Makoto, Hano, Tadashi
Format: Article
Language:English
Published: Elsevier Ltd 2009
Subjects:
Acid Orange 7
Biofilms
Biological process
Decolorization
Granular activated carbon
Granular materials
Online Access:http://dspace.unimap.edu.my/xmlui/handle/123456789/6621
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spelling my.unimap-66212009-07-31T08:49:41Z Granular activated carbon-biofilm configured sequencing batch reactor treatment of C.I. Acid Orange 7 Soon-An, Ong Toorisaka, Eiichi Hirata, Makoto Hano, Tadashi Acid Orange 7 Biofilms Biological process Decolorization Granular activated carbon Granular materials Link to publisher's homepage at http://www.elsevier.com The aim of this study is to investigate the mineralization of C.I. Acid Orange 7 (AO7) by biological process in oxygen limited condition under GAC-biofilm configured sequencing batch reactor (SBCR) operation. The granular activated carbon (GAC) used was immobilized with azo dye-degrading microbes through attachment by immersing the GAC into anaerobic bioreactor treating dye-containing wastewater for more than 200 days. The SBCR system was fed with 2 l of AO7-containing wastewater and was operated in FILL, REACT, DRAW and IDLE periods in a time ratio of 3:20:0.45:0.15 for a cycle time of 24 h. Nearly complete mineralization of AO7 was achieved with the biological system working at initial AO7 concentration of 625 mg/l, dissolved oxygen (DO) below 0.25 mg/l and without the presence of external carbon sources. Reductive environment was well developed in the phases with the addition of external carbon sources, and this had improved the decolorization rate but deteriorated chemical oxygen demand (COD) removal efficiency. 2009-07-31T08:49:10Z 2009-07-31T08:49:10Z 2008 Article Dyes and Pigments, vol.76 (1), 2008, pages 142-146. 0143-7208 http://www.sciencedirect.com/science/journal/01437208 http://hdl.handle.net/123456789/6621 en Elsevier Ltd
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 Acid Orange 7
Biofilms
Biological process
Decolorization
Granular activated carbon
Granular materials
spellingShingle Acid Orange 7
Biofilms
Biological process
Decolorization
Granular activated carbon
Granular materials
Soon-An, Ong
Toorisaka, Eiichi
Hirata, Makoto
Hano, Tadashi
Granular activated carbon-biofilm configured sequencing batch reactor treatment of C.I. Acid Orange 7
description Link to publisher's homepage at http://www.elsevier.com
format Article
author Soon-An, Ong
Toorisaka, Eiichi
Hirata, Makoto
Hano, Tadashi
author_facet Soon-An, Ong
Toorisaka, Eiichi
Hirata, Makoto
Hano, Tadashi
author_sort Soon-An, Ong
title Granular activated carbon-biofilm configured sequencing batch reactor treatment of C.I. Acid Orange 7
title_short Granular activated carbon-biofilm configured sequencing batch reactor treatment of C.I. Acid Orange 7
title_full Granular activated carbon-biofilm configured sequencing batch reactor treatment of C.I. Acid Orange 7
title_fullStr Granular activated carbon-biofilm configured sequencing batch reactor treatment of C.I. Acid Orange 7
title_full_unstemmed Granular activated carbon-biofilm configured sequencing batch reactor treatment of C.I. Acid Orange 7
title_sort granular activated carbon-biofilm configured sequencing batch reactor treatment of c.i. acid orange 7
publisher Elsevier Ltd
publishDate 2009
url http://dspace.unimap.edu.my/xmlui/handle/123456789/6621
_version_ 1643788592797974528
score 13.214268

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