一体化活性污泥处理工艺中泡沫的形成和控制

Formation and control of foam in the incorporate activated sludge treatment process

城市污水处理厂采用的一体化活性污泥法处理污水工艺较易受到泡沫干扰,主要成因是丝状微生物异样快速生长,其中pH值、温度、溶解氧浓度等是影响泡沫的主要因素。可采用喷洒水、投加化学试剂、降低细胞平均停留时间和调节pH值等方法进行控制。

The city wastewater treatment plants often adopt the incorporate activated sludge treatment process. The treatment effect always be disturbed by microbe foam, the most important reason is the excessive growth of some filamentous bacteria and the main factors of effect the foam are PH, temperature and to dissolved oxygen. We can use of spraying water, putting in chemical reagent, reducing the average settle time of cells, adjusting the value of PH, etc to control the filamentous bacterial.