Air blower aeration was adopted in Shaoxing Wastewater Treatment Plant, where exist some disadvantages, such as the falling-off of blind lid from aerated pipe and malfunction of drainage system.

• 绍兴污水处理厂采用鼓风曝气,在运行过程中存在曝气管盲盖脱落现象,排水系统也存在缺陷。