Isolation,Identification and Degradation Characteristics of a Slight Halophilic Denitrifying Bacteria
- VernacularTitle:一株轻度嗜盐反硝化细菌的分离鉴定和反硝化特性初探
- Author:
Pei-Yu ZHANG
;
Yan-Li GUO
;
De-Shuang YU
;
Guang-Yong CHENG
;
- Publication Type:Journal Article
- Keywords:
Halotolerant,Aerobic denitrifying bacteria,Phylogenetic analysis,Denitrification,Heterotrophic nitrification
- From:
Microbiology
1992;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
A slight halophilic denitrifying bacteria(designated GYL)was screened from the activated sludge which was used to treat high-salinity wastewater.According to the results of morphological observation,physiological and biochemical test,sequence analysis of the 16S rDNA,strain GYL was identified as Halo-monas sp..This strain could survive at 10% salinity and the optimal salinity range for growth was 2%~7%.The suitable pH value for growth was 7.5~8.5 and sucrose was the most effective carbon source.The nitro-gen removal efficiency exceeded 80% when the temperature ranged from 25?C to 30?C.Meanwhile hetero-trophic nitrification characteristics of this strain were measured.Results showed that this strain was able to realize SND and ammonia removal rate was 98.3%.It showed that this strain could perform the whole proc-ess of bacteria denitrification independently.
