Proceedings of the 2018 7th International Conference on Energy, Environment and Sustainable Development (ICEESD 2018)

The investigation of aeration optimization in a pilot-scale anoxic-anaerobic oxidation ditch for nutrient removal from wastewater

Authors
LiChao Nengzi, Ying Jiang, XiaoFang Li, WuJia Hailai, JinHua Ma, Rui Cao
Corresponding Author
LiChao Nengzi
Available Online May 2018.
DOI
https://doi.org/10.2991/iceesd-18.2018.252How to use a DOI?
Keywords
Anoxic-anaerobic oxidation ditch, Biological nitrogen and phosphorus removal, Aeration optimization,Pilot-scale
Abstract

The performance of nitrogen and phosphorus removal in a pilot-scale anoxic-anaerobic oxidation ditch (OD) process was investigated. In order to achieve a high removal efficiency of nitrogen and phosphorus, the aeration was optimized and an anoxic zone was formed in the front of OD reactor, thus the operation condition was changed to anoxic/anaerobic/anoxic/aerobic. Denitrification and DPR was occurred in the formed anoxic zone, while SND was occurred in the back of the OD reactor, and energy costs were reduced as DO in the OD reactor was relatively low. The optimal parameters of DO, RSR, SRT and MLSS were 0.55~0.65 mg/L, 58 %, 12 days and 2416~2636 mg/L, respectively. The concentration of COD, TN, NH4+-N and TP in effluent was 18.2 mg/L, 13.8 mg/L, 3.6 mg/L and 0.42 mg/L, respectively, and the average removal rate of them was 94.1 %, 70.6 %, 91.8 % and 88.0 %, respectively.

Copyright
© 2018, 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/).

Download article (PDF)

Volume Title
Proceedings of the 2018 7th International Conference on Energy, Environment and Sustainable Development (ICEESD 2018)
Series
Advances in Engineering Research
Publication Date
May 2018
ISBN
978-94-6252-503-0
ISSN
2352-5401
DOI
https://doi.org/10.2991/iceesd-18.2018.252How to use a DOI?
Copyright
© 2018, 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/).

Cite this article

TY  - CONF
AU  - LiChao Nengzi
AU  - Ying Jiang
AU  - XiaoFang Li
AU  - WuJia Hailai
AU  - JinHua Ma
AU  - Rui Cao
PY  - 2018/05
DA  - 2018/05
TI  - The investigation of aeration optimization in a pilot-scale anoxic-anaerobic oxidation ditch for nutrient removal from wastewater
BT  - Proceedings of the 2018 7th International Conference on Energy, Environment and Sustainable Development (ICEESD 2018)
PB  - Atlantis Press
SP  - 1388
EP  - 1394
SN  - 2352-5401
UR  - https://doi.org/10.2991/iceesd-18.2018.252
DO  - https://doi.org/10.2991/iceesd-18.2018.252
ID  - Nengzi2018/05
ER  -