Anaerobic degradation kinetics of reactive dye with different carbon sources
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Publication Details
Author list: Laowansiri S., Vinitnantharat S., Chaiprasert P., Sung R.H.
Publisher: Pragati Press- India
Publication year: 2008
Journal: Journal of Environmental Biology (0254-8704)
Volume number: 29
Issue number: 3
Start page: 309
End page: 314
Number of pages: 6
ISSN: 0254-8704
Languages: English-Great Britain (EN-GB)
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Abstract
This study aims to investigate the anaerobic degradation kinetics of reactive dye, C.I. Reactive Red 141 (Evercion Red H-E7B) by partially granulated anaerobic mixed culture using three carbon sources, namely, modified starch (MS), polyvinyl alcohol (PVA) and acrylic size (AS) during batch incubation. There is a first-order kinetics reaction in the decolorization processes using MS and PVA as carbon sources, while a zero-order kinetics relationship describes the decolorization process for the AS carbon source. The k values and color removal rate of decolorization with MS carbon source was higher than those of PVA and AS carbon sources. This is because the MS carbon source was well degraded in comparison to AS and PVA, respectively. This study also found dye reduction could be enhanced through the addition of MS as a carbon source. The decolorization rates increased with decrease in dye concentrations of RR141. in contrast, the decolorization rates increased with increase in COD concentration. ฉ Triveni Enterprises.
Keywords
Anaerobic degradation, Biological treatment, Decolorization