The invention discloses an
aquaculture tail water treatment device and belongs to the technical field of
tail water treatment, the bottom of a culture pond is conical and provided with an adjusting hole penetrating through the bottom, an in-pond
sewage suction
pipe is close to the bottom and extends upwards, and the side face of the in-pond
sewage suction
pipe is connected with a
sewage discharge pipe. A conical adjusting block and a lifting device are arranged between the adjusting hole and the sewage suction pipe, the distance between the adjusting hole and the sewage suction pipe can be adjusted, the
suction force of the sewage suction pipe is changed according to the Bernoulli principle, layered cleaning is achieved, a water outlet of the
sewage discharge pipe is communicated with the primary
sedimentation tank through a flow guide pipe inclining downwards, a water disturbing
impeller is arranged at the water outlet,
water flow rotates in one direction, and sewage accumulation is avoided. A
biological filter dam is arranged in the middle of the primary
sedimentation tank, and a filter cavity is formed in the dam, so that
dirt can be isolated, water is purified,
water quality is improved, and the water is more suitable for survival or cyclic utilization of cultured organisms. The device is reasonable in overall structure and capable of effectively treating
aquaculture tail water and maintaining a good
aquaculture environment.