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Impact on nitrifiers of full-scale bioaugmentation

Stenström, F. LU and la Cour Jansen, J. LU (2017) In Water science and technology : a journal of the International Association on Water Pollution Research 76(11-12). p.3079-3085
Abstract

Nitrifiers are the slowest growing bacteria used in conventional biological wastewater treatment. Furthermore, their growth rate is seriously hampered by low temperature. As a result, the volume needed for nitrification dominates the volume of the biological reactors at a wastewater treatment plant. As a way of enhancing nitrification and reducing this volume, bioaugmentation can be used. Nitrifiers from a side-stream plant can be inoculated to the mainstream process, which is thereby boosted. The effect of bioaugmentation can be measured in different ways. This full-scale study focuses on the effect of bioaugmentation from a microbial point of view by using 16S rRNA amplicon sequencing. The study reveals how bioaugmentation increases... (More)

Nitrifiers are the slowest growing bacteria used in conventional biological wastewater treatment. Furthermore, their growth rate is seriously hampered by low temperature. As a result, the volume needed for nitrification dominates the volume of the biological reactors at a wastewater treatment plant. As a way of enhancing nitrification and reducing this volume, bioaugmentation can be used. Nitrifiers from a side-stream plant can be inoculated to the mainstream process, which is thereby boosted. The effect of bioaugmentation can be measured in different ways. This full-scale study focuses on the effect of bioaugmentation from a microbial point of view by using 16S rRNA amplicon sequencing. The study reveals how bioaugmentation increases the diversity of nitrifiers in the mainstream process and in the side-stream plant; that the abundance of nitrifiers is increased in the mainstream process; the interaction between nitrifiers from the side-stream plant and mainstream process; and the effect of bioaugmentation on nitrifying genera and species over time. To our knowledge, this detailed microbial information on nitrifying species during a full-scale bioaugmentation study has not been presented before.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Water science and technology : a journal of the International Association on Water Pollution Research
volume
76
issue
11-12
pages
7 pages
publisher
IWA Publishing
external identifiers
  • scopus:85050857870
ISSN
0273-1223
DOI
10.2166/wst.2017.480
language
English
LU publication?
yes
id
28648f10-9e95-46c3-931b-2ee9eef99ed8
date added to LUP
2018-08-28 12:39:25
date last changed
2018-08-28 12:39:25
@article{28648f10-9e95-46c3-931b-2ee9eef99ed8,
  abstract     = {<p>Nitrifiers are the slowest growing bacteria used in conventional biological wastewater treatment. Furthermore, their growth rate is seriously hampered by low temperature. As a result, the volume needed for nitrification dominates the volume of the biological reactors at a wastewater treatment plant. As a way of enhancing nitrification and reducing this volume, bioaugmentation can be used. Nitrifiers from a side-stream plant can be inoculated to the mainstream process, which is thereby boosted. The effect of bioaugmentation can be measured in different ways. This full-scale study focuses on the effect of bioaugmentation from a microbial point of view by using 16S rRNA amplicon sequencing. The study reveals how bioaugmentation increases the diversity of nitrifiers in the mainstream process and in the side-stream plant; that the abundance of nitrifiers is increased in the mainstream process; the interaction between nitrifiers from the side-stream plant and mainstream process; and the effect of bioaugmentation on nitrifying genera and species over time. To our knowledge, this detailed microbial information on nitrifying species during a full-scale bioaugmentation study has not been presented before.</p>},
  author       = {Stenström, F. and la Cour Jansen, J.},
  issn         = {0273-1223},
  language     = {eng},
  month        = {12},
  number       = {11-12},
  pages        = {3079--3085},
  publisher    = {IWA Publishing},
  series       = {Water science and technology : a journal of the International Association on Water Pollution Research},
  title        = {Impact on nitrifiers of full-scale bioaugmentation},
  url          = {http://dx.doi.org/10.2166/wst.2017.480},
  volume       = {76},
  year         = {2017},
}