Microbial examination shows that protozoan and metazoan in HMBR were obviously more than that in ordinary SBR because of different sludge age, but both reactors have the samilious species.

• 装置运行期间的微生物相分析结果表明：由于泥龄差异，混合液中原、后生动物的数量明显比同期传统SBR工艺的多，但是生物种类差异不大。