earticle

영어

This study was investigated the performance of hybrid denitrification systems using auto/hetero-trophic microorganisms to remove nitrogen from domestic wastewater. Results of the research showed that the reactor could be operated efficiently at the hydraulic retention time from 24.4 to 7.0hr. During the HRT effect experiment, the effluent removal efficiencies of NO3--N ranged from 82.2~88.4% without nitrite accumulation and the effluent sulfate concentration was lower than 46.8mg/L. The maximum volume-loading rate of the reactor was 55.9g NO3--N/m3․d. The maximum auto/heterotrophic denitrification rate is about 41.4g NO3--N/m3․d during this experiment.