Nitrosomonas and Nitrobacter Interactions in Biological Nitrification

Biological-nitrification experiments using chemostats were performed with three different nitrogenous substrates: ammonia, nitrate, and various mixtures of ammonia and nitrite. The study focused on the interrelationship between two groups of nitrifying bacterial utilizing different substrates within...

Full description

Saved in:
Bibliographic Details
Published in:Journal of environmental engineering (New York, N.Y.) N.Y.), 1990-01, Vol.116 (1), p.4-17
Main Authors: Gee, Chai Sung, Pfeffer, John T, Suidan, Makram T
Format: Article
Language:English
Subjects:
AMMONIA
AMMONIAC
AMONIACO
Animal, plant and microbial ecology
BACTERIA
Biological and medical sciences
CULTURE MEDIA
DENSIDAD DE LA POBLACION
DENSITE DE POPULATION
Fundamental and applied biological sciences. Psychology
General aspects
MEDIO DE CULTIVO
MICROBIAL ACTIVITIES
Microbial ecology
MICROORGANISME
MICROORGANISMOS
MICROORGANISMS
MILIEU DE CULTURE
NITRATE
NITRATES
NITRATOS
NITRIFICACION
NITRIFICATION
NITRITE
NITRITES
NITRITOS
OXIDACION
OXIDATION
OXYDATION
POPULATION DENSITY
SUBSTRATES
TECHNICAL PAPERS
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Biological-nitrification experiments using chemostats were performed with three different nitrogenous substrates: ammonia, nitrate, and various mixtures of ammonia and nitrite. The study focused on the interrelationship between two groups of nitrifying bacterial utilizing different substrates within the same environment. It was shown that the activity of the Nitrobacter population was strongly dependent on the population of Nitrosomonas, but not vice versa. Nitrite oxidation in the absence of ammonia resulted in a very unstable system and required hydraulic-retention times of 10 days or greater to obtain complete nitrite oxidation. This is in sharp contrast to the complete oxidation of ammonia to nitrate at the hydraulic-retention time of 2.7 days. Data are presented to show the effect of the ratio of the population of Nitrosomonas to Nitrobacter on the activity of Nitrobacter.
ISSN:0733-9372
1943-7870
DOI:10.1061/(ASCE)0733-9372(1990)116:1(4)