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Treatment capability of an up-flow anammox column reactor using polyethylene sponge strips as biomass carrier

Paper ID Volume ID Publish Year Pages File Format Full-Text
21245 43213 2010 7 PDF Available
Title
Treatment capability of an up-flow anammox column reactor using polyethylene sponge strips as biomass carrier
Abstract

The feasibility of applying a polyethylene (PE) sponge as a biomass carrier in an anaerobic ammonium oxidation (anammox) reactor and its nitrogen removal performance were also investigated. Experiments were carried out in an up-flow column reactor with synthetic inorganic wastewater. Experimental results indicate that reactor containing PE sponge biomass carriers showed a high nitrogen removal capability and exhibited stable performance. In addition, the reactor with 8 strips PE sponge as biomass carrier exhibited greater adaptation capacity compared to that with 6 strips and could achieve a high TN removal rate within a very short period. The ratio of NO2-N removal and NO3-N production to NH4-N removal for the reactor was 1.26:0.21. Furthermore, to investigate the bacterial composition of the mature community, 16S rRNA sequences were amplified by PCR and analyses were conducted using DNA databases. Results showed that a new kind of anammox microorganism (Kumadai-1) was the dominant species in the reactor when using PE sponge as a biomass carrier.

Keywords
Anaerobic ammonium oxidation (anammox); polyethylene sponge (PE sponge); nitrogen removal microbial community
First Page Preview
Treatment capability of an up-flow anammox column reactor using polyethylene sponge strips as biomass carrier
Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Bioscience and Bioengineering - Volume 110, Issue 1, July 2010, Pages 72–78
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering