Study on Operation Parameters Optimization and Denitrification Efficiency of Deep-Bed Denitrification Filter

DOI

10.2991/iceep-17.2017.163How to use a DOI?

Keywords

denitrification filter; denitrification; C/N; HRT

Abstract

Some areas have raised discharge standards for effluent total nitrogen (TN) concentration in China. However, the main component of effluent TN in the wastewater treatment plant is nitrate nitrogen (NO3--N). This research focuses on TN removal using deep-bed denitrification filter, the hydraulic retention time (HRT) and influent C/N ratio are optimized at 25 øC and 10 øC. The optimum influent C/N of denitrification filter is 3:1 at 25 øC and 10 øC. The optimum HRT is 0.25 h at 25 øC and 1 h at 10 øC. Under the optimum conditions, the average concentration of effluent TN is 6.76 mg/L at 25 øC and 8.76 mg/L at 10 øC. The minimum carbon source addition and shortest HRT of deep-bed denitrification filter at room and low temperature were optimized, which has a practical significance in environmental engineering.

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  - Xianzhang Zhao
AU  - Hongjie Wang
AU  - Wenyi Dong
AU  - Shilong Jiang
PY  - 2017/06
DA  - 2017/06
TI  - Study on Operation Parameters Optimization and Denitrification Efficiency of Deep-Bed Denitrification Filter
BT  - Proceedings of the 2017 6th International Conference on Energy and Environmental Protection (ICEEP 2017)
PB  - Atlantis Press
SP  - 942
EP  - 946
SN  - 2352-5401
UR  - https://doi.org/10.2991/iceep-17.2017.163
DO  - 10.2991/iceep-17.2017.163
ID  - Zhao2017/06
ER  -