Format

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

1
Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China.
2
State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China.

Abstract

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.

KEYWORDS:

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

PMID:
29965472
DOI:
10.13227/j.hjkx.201708020
[Indexed for MEDLINE]

Supplemental Content

Loading ...
Support Center