The invention discloses an efficient stirring method and device in
sewage collection in the field of
sewage collection. Organic pollutants in
sewage are degraded by utilizing a photocatalyst during stirring; in order to increase the action area of light, the incident angle of the light and the forming number of light beams are changed by utilizing the reflection law and the
refraction law of the light; and part of sewage and
dirt are gathered below the light beams during stirring. According to the invention, organic pollutants in sewage are degraded by using a photocatalyst; a light condensing tube and a
hexagonal prism are combined for use, and the incidence angle of light and the forming number of light beams are changed by utilizing the reflection law and the
refraction law of light, so that the contact area of the light and a photocatalyst is further increased; according to the sewage collection and treatment device, sewage and
dirt are gathered at the same time of stirring, so that the sewage and the
dirt are gathered below light beams, the action area of light and a photocatalyst is further increased, organic pollutants in the sewage can be degraded in the stirring process, the sewage collection and treatment efficiency is improved, and the purpose of efficiently stirring the sewage is achieved.