Aquaculture tail water treatment shore-based ecological ditch

The utility model discloses a shore-based ecological ditch for treating tail water in aquaculture. The shore-based ecological ditch comprises a water inlet adjusting area, a settling area, a rapid biological filtering area, a multi-dimensional catalysis area, a sand filtering area and filtering dams arranged among the areas. According to the shore-based ecological ditch, aquaculture tail water is pumped into the water inlet adjusting area through the water pump, sequentially enters the water treatment areas to be subjected to physical treatment, biological treatment and multi-dimensional catalysis, and then is filtered and discharged or recycled through the sand filtering area. According to the shore-based ecological ditch, a tail water treatment facility is constructed by utilizing a non-travelling pond bank according to local conditions, no additional land is occupied, and pedestrians and fishery production are not influenced by arranging a cover plate with enough compressive strength. Besides, physical, bi