Biological nitrogen and phosphorus removal using anoxic-anaerobic oxidation ditch under low temperature condition
- 10.2991/iceesd-18.2018.251How to use a DOI?
- anoxic-anaerobic oxidation ditch process; nitrogen and phosphorus removal; low temperature; operational parameters
A pilot-scale anoxic-anaerobic oxidation ditch process was used to investigate the influence of varying temperature on organic substance, nitrogen and phosphorus removal, and the efficiency of these pollutions removal in about 15 ˚C. The results indicated that when the temperature was dropped from about 25 ˚C to about 20 ˚C and about 15 ˚C, the efficiency of TN and NH4+-N removal was obviouly affected, although the operational parameters was optimized immediately, while COD and TP was almost not affected. When the temperature was about 15 ˚C, in the steady phase, the DO, MLSS, SRT and RSR were 1.5~2 mg/L, 3722~4085 mg/L, 18 day and 76 %, respectively, the concentration of COD, NH4+-N, TN and TP in effluent was 26.2 mg/L, 12.1 mg/L, 3.9 mg/L and 0.34 mg/L, respectively, and the removal rate of these pollutions was 90.7 %, 90.4 %, 73.2 % and 93.2 %, respectively.
- © 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 - JinZhao Hu AU - XueMei Wang AU - Hong Yang AU - JianBin Chen AU - Rui Cao PY - 2018/05 DA - 2018/05 TI - Biological nitrogen and phosphorus removal using anoxic-anaerobic oxidation ditch under low temperature condition BT - Proceedings of the 2018 7th International Conference on Energy, Environment and Sustainable Development (ICEESD 2018) PB - Atlantis Press SP - 1381 EP - 1387 SN - 2352-5401 UR - https://doi.org/10.2991/iceesd-18.2018.251 DO - 10.2991/iceesd-18.2018.251 ID - Nengzi2018/05 ER -