[Aerobic denitrification of nitrate wastewater and changes of microbial community structure in a bio-ceramic reactor].

Biological treatment of nitrate wastewater with aerobic denitrifiers in a bio-ceramic reactor was investigated. And denaturing gradient gel electrophoresis (DGGE) method was used for analyzing the stability of microbial community structure. At the condition of the influent with hydraulic loading 0.

[Identification and characterization of a bacterial strain C3 capable of aerobic denitrification].

A bacterial strain C3 screened from the activated sludge was found capable of aerobic denitrification and the denitrifying capability of the strain was studied in batch culture under aerobic condition. The results showed that the nitrate in the culture could be efficiently removed by strain C3 and the nitrogen removal rate was up to above 90%. According to the morphological observation, physiological biochemical test and sequence analysis of the 16S rDNA, strain C3 was identified as Pseudomonas sp.