[Nitrogen Removal Performance of Novel HABR Reactor over CANON Process].

The startup of novel hybrid anaerobic baffled reactor (HABR) and the feasibility of completely autotrophic nitrogen removal over nitrite (CANON) process were studied. The reactor was operated by gradually decreasing HRT to improve total nitrogen load. After startup, the change of nitrogen concentrations, conductivity, pH and MLSS was measured along the reactor, and then the microbial morphology and spatial structure of bacteria were defined.