PCR-DGGE results showed that the AOB in SBR pilot-scale, A/O pilot-scale and UASB-A/O lab-scale processes were phylogenetically related to Nitrosomonas-like species with a melting point in the range 30% to 50%.

• PCR-DGGE结果表明SBR中试、A/O和UASB-A/O3种短程脱氮系统中的AOB均以Nitrosomonas-like为主.