Evaluation of macrocomposite based sequencing batch biofilm reactor (MC-SBBR) for decolorization and biodegradation of azo dye Acid Orange 7
The present study deals with the decolorization of azo dye Acid Orange 7 (AO7) using a macrocomposite based sequencing batch biofilm reactor (MC-SBBR). The effect of biofilm thickness towards the decolorization as well as the biodegradation of aromatic amines formed through AO7 treatment process was...
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my.utm.527642018-06-30T00:45:09Z http://eprints.utm.my/id/eprint/52764/ Evaluation of macrocomposite based sequencing batch biofilm reactor (MC-SBBR) for decolorization and biodegradation of azo dye Acid Orange 7 Lim, Chi Kim Aris, Azmi Chin, Hong Neoh Chi, Yong Lam Abdul Majid, Zaiton Ibrahim, Zaharah TA Engineering (General). Civil engineering (General) The present study deals with the decolorization of azo dye Acid Orange 7 (AO7) using a macrocomposite based sequencing batch biofilm reactor (MC-SBBR). The effect of biofilm thickness towards the decolorization as well as the biodegradation of aromatic amines formed through AO7 treatment process was investigated. The results obtained indicate that the biofilm thickness reached its steady state at development period of 7 days with average biofilm thickness of about 115 μm. Almost complete decolorization of AO7 within 3 h of treatment time and more than 80% of the COD removal were achieved by the applied biofilm system. Decolorization of AO7 in this study nicely followed first order kinetic with a k value of 3.36 h−1. Fourier transform infrared (FTIR) and UV–Vis spectral analysis further confirmed the decolorization of AO7. Monitoring the dye metabolites through HPLC suggested that more than 90% of facultative anaerobically formed aromatic amines i.e. p-benzoquinone and 1,2-naphtolquinone were successfully removed by the MC-SBBR system. Phytotoxicity study also showed that AO7 metabolites produced by MC-SBBR system were less phytotoxic than the parent compound. Elsevier Ltd. 2014 Article PeerReviewed Lim, Chi Kim and Aris, Azmi and Chin, Hong Neoh and Chi, Yong Lam and Abdul Majid, Zaiton and Ibrahim, Zaharah (2014) Evaluation of macrocomposite based sequencing batch biofilm reactor (MC-SBBR) for decolorization and biodegradation of azo dye Acid Orange 7. International Biodeterioration and Biodegradation, 87 . pp. 9-17. ISSN 0964-8305 https://doi.org/10.1016/j.ibiod.2013.10.022 DOI: 10.1016/j.ibiod.2013.10.022 |
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TA Engineering (General). Civil engineering (General) Lim, Chi Kim Aris, Azmi Chin, Hong Neoh Chi, Yong Lam Abdul Majid, Zaiton Ibrahim, Zaharah Evaluation of macrocomposite based sequencing batch biofilm reactor (MC-SBBR) for decolorization and biodegradation of azo dye Acid Orange 7 |
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The present study deals with the decolorization of azo dye Acid Orange 7 (AO7) using a macrocomposite based sequencing batch biofilm reactor (MC-SBBR). The effect of biofilm thickness towards the decolorization as well as the biodegradation of aromatic amines formed through AO7 treatment process was investigated. The results obtained indicate that the biofilm thickness reached its steady state at development period of 7 days with average biofilm thickness of about 115 μm. Almost complete decolorization of AO7 within 3 h of treatment time and more than 80% of the COD removal were achieved by the applied biofilm system. Decolorization of AO7 in this study nicely followed first order kinetic with a k value of 3.36 h−1. Fourier transform infrared (FTIR) and UV–Vis spectral analysis further confirmed the decolorization of AO7. Monitoring the dye metabolites through HPLC suggested that more than 90% of facultative anaerobically formed aromatic amines i.e. p-benzoquinone and 1,2-naphtolquinone were successfully removed by the MC-SBBR system. Phytotoxicity study also showed that AO7 metabolites produced by MC-SBBR system were less phytotoxic than the parent compound. |
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Article |
author |
Lim, Chi Kim Aris, Azmi Chin, Hong Neoh Chi, Yong Lam Abdul Majid, Zaiton Ibrahim, Zaharah |
author_facet |
Lim, Chi Kim Aris, Azmi Chin, Hong Neoh Chi, Yong Lam Abdul Majid, Zaiton Ibrahim, Zaharah |
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Lim, Chi Kim |
title |
Evaluation of macrocomposite based sequencing batch biofilm reactor (MC-SBBR) for decolorization and biodegradation of azo dye Acid Orange 7 |
title_short |
Evaluation of macrocomposite based sequencing batch biofilm reactor (MC-SBBR) for decolorization and biodegradation of azo dye Acid Orange 7 |
title_full |
Evaluation of macrocomposite based sequencing batch biofilm reactor (MC-SBBR) for decolorization and biodegradation of azo dye Acid Orange 7 |
title_fullStr |
Evaluation of macrocomposite based sequencing batch biofilm reactor (MC-SBBR) for decolorization and biodegradation of azo dye Acid Orange 7 |
title_full_unstemmed |
Evaluation of macrocomposite based sequencing batch biofilm reactor (MC-SBBR) for decolorization and biodegradation of azo dye Acid Orange 7 |
title_sort |
evaluation of macrocomposite based sequencing batch biofilm reactor (mc-sbbr) for decolorization and biodegradation of azo dye acid orange 7 |
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Elsevier Ltd. |
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2014 |
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http://eprints.utm.my/id/eprint/52764/ https://doi.org/10.1016/j.ibiod.2013.10.022 |
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