The stable performance of partial nitrification with the high salinity waste-brine

DOI

10.2991/eesed-16.2017.85How to use a DOI?

Keywords

Anammox, Brine, Nitrogen Removal, Partial Nitrification, Salinity

Abstract

Partial nitrification (PN) treatments on waste-brine were carried out in this study. Stable PN performance was obtained during continuous operation for 752 days, with a maximum nitrogen loading rate (NLR) of 3 kg-N m-3 day-1 and ammonium conversion rate (ACR) of 1.4 kgNm-3day-1. The ratios of NO2--N/ (NO2--N+NO3--N) (NR) were always above 97%, and BOD removal efficiencies were also stable at around 70% even if a sharp increase in NLR was applied during the stable period. Additionally, bacterial consortia analysis showed ammonium-oxidizing bacteria were the dominant microorganisms, which provided evidence for the long-term stable performance of this PN reactor. During the experiment, sludge setting properties deteriorated due to the absence of a biomass carrier. The stable performance of partial nitrification from waste-brine demonstrated the feasibility of the operation strategy in this study.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Jia-Chun Yang
AU  - Hui Ma
AU  - Yuan-Xiang Mao
PY  - 2016/08
DA  - 2016/08
TI  - The stable performance of partial nitrification with the high salinity waste-brine
BT  - 2nd Annual International Conference on Energy, Environmental & Sustainable Ecosystem Development (EESED 2016)
PB  - Atlantis Press
SP  - 616
EP  - 627
SN  - 2352-5401
UR  - https://doi.org/10.2991/eesed-16.2017.85
DO  - 10.2991/eesed-16.2017.85
ID  - Yang2016/08
ER  -