SOME OBSERVATIONS ON FREE AMMONIA INHIBITION TO NITROBACTER IN NITRIFYING BIOFILM REACTOR

Authors
LIU Y CAPDEVILLE B
Citation
Y. Liu et B. Capdeville, SOME OBSERVATIONS ON FREE AMMONIA INHIBITION TO NITROBACTER IN NITRIFYING BIOFILM REACTOR, Biotechnology letters, 16(3), 1994, pp. 309-314
Citations number
12
Categorie Soggetti
Biothechnology & Applied Migrobiology
Journal title
Biotechnology letters → ACNP
ISSN journal
01415492
Volume
16
Issue
3
Year of publication
1994
Pages
309 - 314
Database
ISI
SICI code
0141-5492(1994)16:3<309:SOOFAI>2.0.ZU;2-Y
Abstract
Free ammonia inhibition to Nitrobacter population in a nitrifying biof ilm was investigated. It was found that when the free ammonia concentr ation is greater than 0.1mgN/1, the oxidative activity of Nitrobacter was significantly inhibited, and resulting in a transient accumulation of nitrite ions. The results show that Nitrobacter population is capa ble of rapidly recovering its lost metabolic activity once the free am monia concentration becomes less than 0.1mgN/1, and a complete oxidati on of nitrite to nitrate was achieved.