What are the characteristics of activated sludge?

The traditional activated sludge method has the following characteristics:

Advantages:

1, good treatment effect, suitable for the treatment of sewage with a high degree of purification and

stabilization;

2, according to the specific circumstances, can be flexibly adjusted to sewage treatment

the degree of high and low;

3, when the influent load rises, it can be solved by increasing the sludge return ratio. Sludge return

flow ratio can be solved.

Disadvantages:

1, aeration pool volume, covers an area of more than the infrastructure investment

more.

2, in order to avoid the first end of the aeration tank mixture in anoxic or

anaerobic state, the organic load of influent water can not be too high.

3, the end of the aeration tank may appear to feed the rate is greater than

oxygen demand rate of the phenomenon, power consumption is too large.

4, poor adaptability to shock load.