Method for killing red nematodes in sewage treatment system

The invention discloses a method for killing red nematodes in a sewage treatment system, and relates to the technical field of sewage treatment.The method comprises the following steps that S1, whether the red nematodes in a biochemical pool burst or not is monitored; s2, if the red nematodes break out, aeration of the biochemical pool is stopped, and after dissolved oxygen in the biochemical pool is controlled to be reduced to a preset concentration, intermittent water feeding is conducted on the biochemical pool; s3, regularly cleaning and collecting are conducted on the red nematodes on the water surface of the biochemical pool, and then intensively discharging of the red nematodes into a collecting device is carried out; s4, a pesticide is added into the collecting device, and the red nematodes in the collecting device are killed. Compared with a method for killing the red nematodes by directly putting an insecticide into the biochemical pool, the killing method has the advantages that the dosage of the i