Abstract: Disclosed is a recycling system for treating sewage of an ecological farm, including an external water source, a living area producing domestic sewage, a culture area producing breeding sewage and a farmland area producing agricultural drainage. The external water source feeds water to an ecological river, a water-saving irrigation system of the farmland area, the living area and the culture area through a water-diversion system. A first channel configured to discharge the domestic sewage from the living area is communicated with the water-saving irrigation system through a domestic sewage treatment system. A second channel configured to discharge the breeding sewage from the culture area is communicated with the water-saving irrigation system through a breeding sewage treatment system.

Abstract: The present invention provides a tail water decentralized treatment and drainage system of sewage treatment plant, comprising a riparian vegetation buffer zone, a subsurface flow constructed wetland and a riverside protection pile, the riparian vegetation buffer zone comprises an excavation protection slope and an ecological bag paved on the excavation protection slope. The subsurface flow constructed wetland is disposed on the river protection slope along the river flow direction, the subsurface flow constructed wetland is provided with a treatment system, a water drainage system and a plurality of outlet pipes disposed along the river flow direction. The present invention is novel in idea and reasonable in design.