Sludge bulking is a hard job in activated sludge treatment, especially in the treatment of high load waste water from petrochemical plant.
污泥膨胀是活性污泥法污水处理中的一个难题，尤其在处理高负荷的石化污水中。
2
In this paper, a new type of sludge bulking problem caused by high loading rate is described, the control measures for this kind of problem has been studied.
提出一类高负荷的丝状菌污泥膨胀现象，并对高负荷引起的污泥膨胀控制进行试验研究。
3
The experimental result has been revealed that the dissolved oxygen limiting is the main reason for high loading rate bulking problem.