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Response of activated sludge to the presence of 2,4-dichlorophenol in a batch culture system

Paper ID Volume ID Publish Year Pages File Format Full-Text
36196 45124 2006 6 PDF Available
Title
Response of activated sludge to the presence of 2,4-dichlorophenol in a batch culture system
Abstract

The response of activated sludge to the presence of 2,4-dichlorophenol (dCP) was investigated in this study. At 1–20 mg/l, dCP slightly reduced the specific oxygen uptake rate of the activated sludge. The sludge yield slightly decreased with an increase in dCP concentration, and its hydrophobicity also changed. The presence of dCP at 5 mg/l or lower did not change the diameter distribution of the sludge flocs. However, the diameter of most floc increased at dCP higher than 5 mg/l. Energy uncoupling and inhibition analysis demonstrate that the reduction in sludge yield at lower dCP levels was mainly attributed to the inhibitory effect of dCP on microbial growth, while that at higher levels of dCP, the yield reduction was mainly caused by the inhibitory effect of dCP on the substrate degradation.

Keywords
2,4-Dichlorophenol (dCP); Activated sludge; Energy uncoupling; Inhibition; Yield
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Response of activated sludge to the presence of 2,4-dichlorophenol in a batch culture system
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 41, Issue 8, August 2006, Pages 1758–1763
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
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Full-text PDF Download
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