活性污泥法低温硝化及其运行控制条件研究

Operational qarameters to keep high nitrification rate in activated sludge process under low temperature

以我国大庆乘风庄污水厂 5年运行实践为基础 ,研究了低水温条件下实现高效硝化的运行控制条件 .指出通过保持较高的污泥浓度 ,控制较低负荷 (<0 .15kg(BOD5) (kg(MLSS)·d) )下运行 ,即使水温为 8— 10℃ ,仍然可达到 80

Based on the five years operation of Chinese Daqing Chengfengzhuang Wastewater Treatment Plant, operational parameters to keep high nitrification rate at low water temperature were summarized. It was stated that, by keep high activated sludge concentration and low sludge loading(<0.15kg(BOD 5)/(kg(MLSS)·d)), even when the wastewater temperature is 8—10℃, high nitrification rate (above 80%) and good organic removal can be reached.