[Start-up and Operation of Biofilter Coupled Nitrification and CANON for the Removal of Iron, Manganese and Ammonia Nitrogen].
Huan Jing Ke Xue
; 39(3): 1264-1271, 2018 Mar 08.
Article
en Zh
| MEDLINE
| ID: mdl-29965472
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 â³NH4+-N/â³NO3--N was 1.49, and the oxidation and removal of Fe(â
¡), Mn(â
¡), 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 13.79-13.94. The removal ratio of ammonia nitrogen was lower with lower temperature.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Reactores Biológicos
/
Nitrificación
/
Hierro
/
Manganeso
/
Nitrógeno
Idioma:
Zh
Revista:
Huan Jing Ke Xue
Año:
2018
Tipo del documento:
Article
País de afiliación:
China