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Adaptation of a freshwater anammox population to high salinity wastewater

Paper ID Volume ID Publish Year Pages File Format Full-Text
25624 43585 2006 8 PDF Available
Title
Adaptation of a freshwater anammox population to high salinity wastewater
Abstract

For the successful application of anaerobic ammonium oxidation (anammox) in wastewater practice it is important to know how to seed new anammox reactors with biomass from existing reactors. In this study, a new high salinity anammox reactor was inoculated with biomass from a freshwater system. The changes in activity and population shifts were monitored. It was shown that freshwater anammox bacteria could adapt to salt concentrations as high as 30 g l−1 provided the salt concentration was gradually increased. Higher salt concentrations reversibly inhibited anammox bacteria. The nitrogen removal efficiency and maximum anammox activity of the salt adapted sludge was very similar to the reference freshwater sludge. Fluorescence in situ hybridization analysis revealed that the freshwater anammox species Candidatus “Kuenenia stuttgartiensis” was the dominant in both salt adapted sludge and freshwater sludge. These results show that gradual adaptation may be the key to successful seeding of anammox bioreactors.

Keywords
Anammox; Kuenenia; Scalindua; Ammonium; Wastewater; Nitrogen removal
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Adaptation of a freshwater anammox population to high salinity wastewater
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Biotechnology - Volume 126, Issue 4, 1 December 2006, Pages 546–553
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