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Treatment of azo dye Orange II in aerobic and anaerobic-SBR systems

Paper ID Volume ID Publish Year Pages File Format Full-Text
36486 45133 2005 8 PDF Available
Title
Treatment of azo dye Orange II in aerobic and anaerobic-SBR systems
Abstract

The performance of aerobic- and anaerobic-SBR in treating Orange II-containing wastewater was investigated. The result from a specific oxygen uptake rate (SOUR) study showed that the Orange II compound did not exert significant inhibitory effects on the activity of activated sludge microorganisms. It was found that Orange II and organic loading rates affected the treatment performance in terms of COD and Orange II removal efficiencies in the SBR systems. The increase of organic loading rate from 2.66 to 5.32 g COD/l day had slightly improved the COD removal efficiency in aerobic-SBR but deteriorated the COD removal efficiency in anaerobic-SBR. On the other hand, the increase of organic loading rate improved the Orange II removal efficiency in both SBR systems. In the case of 100 mg/l Orange II addition, the average fraction of Orange II removed was 15 and 80% in aerobic- and anaerobic-SBR, respectively. The anaerobic microbes exhibited five times higher Orange II removal rate compared to aerobic microbes.

Keywords
Activated sludge; Orange II; SBR; Colour removal; Azo dye
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Treatment of azo dye Orange II in aerobic and anaerobic-SBR systems
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 40, Issue 8, July 2005, Pages 2907–2914
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us