What is the role of rapid separation biotechnology in sewage treatment?

The sewage treatment capacity of 2000 tons requires 10000 square meters of constructed wetland, which will be replaced in two or three years, and the effect is not good! When it rains heavily, the water quality will not meet the standard. We regret it now! The cost per ton of water treatment is still very high, almost 0.8 yuan! Compared with the traditional three or four cents, the operating cost has almost doubled. We have used this equipment for less than two years. Now the boss thinks that the operating cost is too high and the water quality is often unqualified. Environmental protection bureau often comes to trouble, ready to transform into traditional biological treatment!