Tail water treatment device for industrial aquaculture of stichopus japonicus

The invention discloses a stichopus japonicus industrial aquaculture tail water treatment device which comprises a first sewage treatment tank, a second sewage treatment tank and a third sewage treatment tank, a through groove is formed in the partition plate, and the first filtering mechanism is arranged on the through groove; the conveying mechanism is arranged at the bottom of the first sewage treatment tank, a sewage outlet is formed in one side of the first sewage treatment tank, and a sludge collecting tank is arranged at the bottom of the first sewage treatment tank; the second filtering mechanism comprises a second sewage treatment tank arranged on one side of the first sewage treatment tank, a drainage hole is formed in the other side of the first sewage treatment tank, a sealing mechanism is arranged on the outer wall of the first sewage treatment tank, and the sealing mechanism corresponds to the drainage hole; the second sewage treatment tank is detachably connected with a plurality of filtering a