Send to

Choose Destination
Huan Jing Ke Xue. 2018 Mar 8;39(3):1264-1271. doi: 10.13227/j.hjkx.201708020.

[Start-up and Operation of Biofilter Coupled Nitrification and CANON for the Removal of Iron, Manganese and Ammonia Nitrogen].

[Article in Chinese]

Author information

Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China.
State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China.


A pilot-scale bio-filter coupled nitrification and CANON was started up to remove iron, manganese and ammonia nitrogen from groundwater in a plant, and the main removal route of ammonia nitrogen was analyzed. The experiment showed that the bio-filter could be started up successfully and achieved stable operation after 164 days of culture development. The value of △NH4+-N/△NO3--N was 1.49, and the oxidation and removal of Fe(Ⅱ), Mn(Ⅱ), and NH4+-N were (9.87±1.17), (2.25±0.06), and (1.51±0.06) mg·L-1, respectively. The calculation based on the quantitative relationship between nitrogen conservation and dissolved oxygen (DO) measurement indicated that the contribution of CANON to NH4+-N removal was 33.48%-38.87%, and the average ratio of ammonia nitrogen removal amount to DO was 1:3.79-1:3.94. The removal ratio of ammonia nitrogen was lower with lower temperature.


CANON; ammonia nitrogen; dissolved oxygen; iron and manganese; nitrogen conservation

[Indexed for MEDLINE]

Supplemental Content

Loading ...
Support Center