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Reaction kinetics of the degradation of chloroanilines and aniline by aerobic granule

Paper ID Volume ID Publish Year Pages File Format Full-Text
3491 172 2012 6 PDF Available
Title
Reaction kinetics of the degradation of chloroanilines and aniline by aerobic granule
Abstract

The reaction kinetics of the degradation of ClAs and AN by aerobic granules were studied in a stable sequencing airlift bioreactor (SABR). Results showed that the degradation of ClAs and AN by aerobic granules followed the Haldane equation. The maximum substrate degradation rates (Vmax) for different pollutants were as follows: AN > 4-ClA > 2-ClA > 3-ClA > 3,4-DClA, and the order of inhibition constant (Ki) was AN > 3-ClA > 4-ClA > 2-ClA > 3,4-DClA. The biodegradabilities of ClAs and AN was well relevance to their spatial parameters and thermodynamic coefficients. At the same time, the values of Vmax and Ki increased along with the granular diameter (peaked at 1.25–2.0 mm), and then Ki increased but Vmax decreased. The results demonstrated that the formation of aerobic granule favours enhancing the degradability of toxic organic compounds, and controlling the granular diameter is important for optimising the performance of bioreactors.

► Reaction kinetics of aniline and chloroanilines by aerobic granules are studied in this paper. ► Formation of aerobic granule favours enhancing the degradability of toxic organic compounds. ► Controlling granular diameter is important for optimising the performance of bioreactor.

Keywords
Aerobic granule; Chloroaniline; Biodegradation; Kinetic parameter; Wastewater treatment; Bioreactors
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Reaction kinetics of the degradation of chloroanilines and aniline by aerobic granule
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biochemical Engineering Journal - Volume 68, 15 October 2012, Pages 215–220
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
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Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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Any Questions? feel free to contact us