[Effect of sulfide to nitrate ratios on the strains coupling nitrogen removal from wastewater and hydrogen sulfide removal from biogas].

Two strains Pseudomonas fluorescens and Pseudomonas aeruginosa were isolated from the reactors coupling nitrogen removal from wastewater and hydrogen sulfide removal from biogas. It was investigated that sulfide to nitrate ratios had effects on the simultaneous removal of sulfide and nitrate of the two strains under the conditions of pH 7.0, temperature 30 degrees C, anaerobic, cultured for 2 days.