Study on the Nitrite-reducing Activity of Aerobic Denitrifying Bacterial Strain N6-1
- VernacularTitle:好氧反硝化细菌N6-1亚硝酸盐还原活性的研究
- Author:
Song CHEN
;
Xiu-Juan HONG
;
Lei-Ming HUANG
;
Jie DOU
;
Chang-Lin ZHOU
;
- Publication Type:Journal Article
- Keywords:
Aerobic denitrifying bacteria, Nitrite-reducing, Reducing rate
- From:
Microbiology
2008;0(07):-
- CountryChina
- Language:Chinese
-
Abstract:
The nitrite-reducing activity of aerobic denitrifying bacterial strain N6-1 was studied. It showed that the nitrite-reducing activity reached the highest at 30℃, 120 r/min, pH 8.5 and C/N ratio 12, using CH3COONa and NaNO2 as the sole carbon source and nitrogen source, respectively. When the initial NaNO2 concentration was 2 g/L, NO2--N was reduced completely after 20 hours cultivation with the reducing rate of 20.3 mg/L?h. There would be no effect on its nitrite-reducing activity in the present of 1.5% NaCl or 1% peptone. The cell concentration could reach 1.2?1011 CFU/mL after 24 hours cultivation in 10 L fermentor.
