Factors such as flocculants, surfactant, solid loading, hydraulic loading, sludge skimming method, the aerator power and temperature were investigated.

• 研究了絮凝剂、表面活性剂、固体负荷、水力负荷、刮泥方式、曝气机功率及温度等因素对低浓度剩余活性污泥涡凹气浮浓缩工艺的影响;