[Identification of a new heterotrophic nitrobacterium strain Colloides sp. JZ1-1 and its nitrifying capability].
Ying Yong Sheng Tai Xue Bao
; 23(6): 1635-40, 2012 Jun.
Article
en Zh
| MEDLINE
| ID: mdl-22937654
ABSTRACT
A heterotrophic nitrobacterium strain JZ1-1 with higher nitrifying capability was isolated and mutagenized from an acclimated activated sludge. The JZ1-1 was identified as Colloides sp., according to its morphological and physiological features. The factors affecting the nitrifying capability of JZ1-1 were investigated, including medium carbon source, C/N ratio, pH value, dissolved oxygen, temperature, and ammonium nitrogen concentration. The optimal carbon source was sodium citrate, and the nitrification was favored when the C/N ratio was from 10 to 14, temperature was 30 degrees C, and pH value was 6-9 when cultured at a rotating speed of more than 150 r x min(-1). JZ1-1 could degrade ammonium nitrogen effectively when the initial concentration of ammonium nitrogen was from 100 mg x L(-1) to 500 mg x L(-1). JZ1-1 was stable after 5 generations of subculture.
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Bases de datos:
MEDLINE
Asunto principal:
Aguas del Alcantarillado
/
Bradyrhizobiaceae
/
Nitrificación
/
Compuestos de Amonio Cuaternario
/
Nitrógeno
Tipo de estudio:
Diagnostic_studies
/
Prognostic_studies
Idioma:
Zh
Revista:
Ying Yong Sheng Tai Xue Bao
Asunto de la revista:
SAUDE AMBIENTAL
Año:
2012
Tipo del documento:
Article
País de afiliación:
China