Compared with oxidation ditch, the traditional activated sludge process has advantages and disadvantages and scope of application (the more detailed, the better)

Oxidation ditch is usually surface aeration, which saves electricity and consumes less energy than traditional oxidation ditch. Because many ditches are filled with different dissolved oxygen, there will be backflow between ditches, and its nitrogen and phosphorus removal effect is better than the traditional one. Generally, it is suitable for places with a small amount of water and a large area, and is generally used in county-level and town-level treatment plants.