The possible factors of sludge reduction such as sludge decay,energy uncoupled metabolism,anaerobic oxidation with low sludge production were discussed in an OSA(oxic-settling-anaerobic) process.

• 探讨了污泥衰减、能量解偶联、低污泥产率厌氧反应对OSA工艺污泥减量作用的影响。