The effect of sludge recycle ratio (R) on the performance of the system was investigated in a pilot-scale step-feed anoxic/oxic (A/O) nitrogen removal process for domestic wastewater treatment.

• 摘要采用连续流分段进水缺氧／好氧(A/O)中试系统处理生活污水，研究污泥回流比(R)对系统性能的影响。