天津市纪庄子污水处理厂正在生产运行中的普遍活性污泥法曝气池与A/O中试系统有相似的生物处理工艺,但两者的生态系统却大不相同,因此在废水处理微生物评价中也不相同,这一点只靠化学和物理学的检验是不足以察知的,为此,我们安排了对普通曝气池中活性污泥(包括回流污泥)和中试脱氮、脱磷系统各段活性污泥中的微型生物进行定期镜检对比和定量检定,观察了解不同种类的原生动物,微小后生动物在两种处理 Tianjin Jizhuangzi sewage treatment plant is in production and operation of the common activated sludge aeration tank and A / O pilot plant similar biological treatment process, but the two ecosystems are very different, so in wastewater treatment microorganisms Evaluation is not the same, this is only chemical and physical testing is not enough to detect, for which we arranged for the general aeration tank activated sludge (including the return sludge) and pilot denitrification, off Phosphorus system in each section of the activated sludge microscopy of regular microscopic examination and quantitative comparison to observe the understanding of different types of protozoan, micro-metazoan in two treatments