Study on nitrogen removal performance and microbial community structure succession under the condition of anaerobic sludge and low carbon source

Abstract

Under anaerobic low carbon source, the reactor was started-up by inoculating anaerobic sludge. The nitrogen removal efficiency and nitrogen conversion pathway during the start-up process were analyzed. At the same time, the structure succession of bacteria in the process of start-up was analyzed by PCR-DGGE technology from molecular biology level. The results showed that inoculated anaerobic sludge had a good effect on nitrogen removal under the condition of anaerobic low carbon source.